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| Plano de Ação: | ..... |
| Descrição: | CHEN, Y.; LU, D.; MORAN, E. F.; BATISTELLA, M.; DUTRA, L. V.; DEL’ARCO SANCHES, I.; SILVA, R. F. B. da; HUANG, J.; LUIZ, A. J. B.; OLIVEIRA, M. A. F. de Mapping croplands, cropping patterns, and crop types using MODIS time-series data. International Journal of Applied Earth Observation and Geoinformation, v. 69, p. 133-147, 2018. |
| Parceria/partes: | UNICAMP - Universidade Estadual de Campinas, INPE - Instituto Nacional de Pesquisas Espaciais, Michigan State University, Zhejiang Agriculture and Forestry University, Zhejiang University , |
| Peso: | A1 |
| Conteúdo: | Abstract: The importance of mapping regional and global cropland distribution in timely ways has been recognized, but separation of crop types and multiple cropping patterns is challenging due to their spectral similarity. This study developed a new approach to identify crop types (including soy, cotton and maize) and cropping patterns (Soy-Maize, Soy-Cotton, Soy-Pasture, Soy-Fallow, Fallow-Cotton and Single crop) in the state of Mato Grosso, Brazil. The Moderate Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI) time series data for 2015 and 2016 and field survey data were used in this research. The major steps of this proposed approach include: (1) reconstructing NDVI time series data by removing the cloud-contaminated pixels using the temporal interpolation algorithm, (2) identifying the best periods and developing temporal indices and phenological parameters to distinguish croplands from other land cover types, and (3) developing crop temporal indices to extract cropping patterns using NDVI time-series data and group cropping patterns into crop types. Decision tree classifier was used to map cropping patterns based on these temporal indices. Croplands from Landsat imagery in 2016, cropping pattern samples from field survey in 2016, and the planted area of crop types in 2015 were used for accuracy assessment. Overall accuracies of approximately 90%, 73% and 86%, respectively were obtained for croplands, cropping patterns, and crop types. The adjusted coefficients of determination of total crop, soy, maize, and cotton areas with corresponding statistical areas were 0.94, 0.94, 0.88 and 0.88, respectively. This research indicates that the proposed approach is promising for mapping large-scale croplands, their cropping patterns and crop types. |
| Observaçao: | ISSN: 1569-8432, 0303-2434. DOI: https://doi.org/10.1016/j.jag.2018.03.005 Pendência: PA SEG associado. (ID_PAT: 21822) |
| Palavras-chave: | Croplands; Cropping patterns; Crop types; MODIS NDVI; Decision tree classifier; Brazil. |
| Valor JCR (2017): | 4.003 |
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| Plano de Ação: | ..... |
| Descrição: | MOITINHO, M. A.; BONONI, L.; SOUZA, D. T.; MELO, I. S. de; TAKETANI, R. G. Bacterial succession decreases network complexity during plant material decomposition in mangroves. Microbial Ecololy, v. 76, n. 4, p. 954-963, 2018. |
| Parceria/partes: | ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", |
| Peso: | A1 |
| Conteúdo: | Abstract: In this study, 16S rRNA gene amplicon sequencing was used to assess bacterial diversity and dynamics throughout different stages of leaves decomposition of three plant species (Rhizophora mangle, Laguncularia racemosa, and Avicennia schaueriana) in three distinct mangroves of São Paulo state, Brazil. The experiments were conducted in microcosms. Phylogenetic diversity (Faiths’ PD) index showed differences between samples and suggested that some treatments like R. mangle increased their bacterial diversity through time. Principal coordinate analysis revealed that community’s profile varied based on mangroves, followed by plant species and time. A clear succession patterns was observed in this study, i.e., some microorganisms with low abundance in the initial phases gradually became dominant (e.g., Alphaproteobacteria), whereas microbes that were initially predominant became low (e.g., Gammaproteobacteria). Co-occurrence analyses were performed for all times of plant degradation aiming to better understand the relationships between bacterial populations. The c-score index was done to test the randomness of the community assemblage during the stages of decomposition. For all degradation time points, the values of the observed c-score were higher than the values of the simulated c-score. This result indicated that during plant decomposition, the bacterial communities presented less co-occurrence than expected by chance and that these communities were not randomly assembled but instead they are driven by species interactions. Network analyses results showed that in the conditions presented in this experiment, the initial stages of leaf decomposition formed more connected and complex networks than the later stages. These results suggest that resource competition was a determinant in these specific mangroves during plant degradation, mainly in the initial periods. |
| Observaçao: | ISSN: 0095-3628 (print), 1432-184X (online). DOI: https://doi.org/10.1007/s00248-018-1190-4 Pendência: Código SEG associado. (ID_PAT: 22089) |
| Palavras-chave: | Bacterial dynamic; Mangrove plant degradation; Co-occurrence analysis; Microcosms. |
| Valor JCR (2017): | 3.614 |
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| Plano de Ação: | ..... |
| Descrição: | TAKETANI, R. G.; MOITINHO, M. A.; MAUCHLINE, T. H.; MELO, I. S. de Co-occurrence patterns of litter decomposing communities in mangroves indicate a robust community resistant to disturbances. PeerJ, v. 6, n. e5710, 2018. |
| Parceria/partes: | ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", Rothamsted Research, |
| Peso: | A1 |
| Conteúdo: | Abstract: Background. Mangroves are important coastal ecosystems known for high photosynthetic productivity and the ability to support marine food chains through supply of dissolved carbon or particular organic matter. Most of the carbon found in mangroves is produced by its vegetation and is decomposed in root associated sediment. This process involves a tight interaction between microbial populations, litter chemical composition, and environmental parameters. Here, we study the complex interactions found during litter decomposition in mangroves by applying network analysis to metagenomic data. Methods. Leaves of three species of mangrove trees typically found in the southeast of Brazil (Rhizophora mangle, Laguncularia racemosa, and Avicennia schaueriana) were collected in separate litter bags and left on three different mangroves for 60 days. These leaves were subsequently used for metagenome sequencing using Ion Torrent technology. Sequences were annotated in MG-RAST and used for network construction using MENAp. Results. The most common phyla were Proteobacteria (classes Gamma and Alphaproteobacteria) followed by Firmicutes (Clostridia and Bacilli). The most abundant protein clusters were associated with the metabolism of carbohydrates, amino acids, and proteins. Non-metric multidimensional scaling of the metagenomic data indicated that substrate (i.e., tree species) did not significantly select for a specific community. Both networks exhibited scale-free characteristics and small world structure due to the low mean shortest path length and high average clustering coefficient. These networks also had a low number of hub nodes most of which were module hubs. Discussion. This study demonstrates that under different environmental pressures (i.e., plant species or mangrove location) the microbial community associated with the decaying material forms a robust and stable network. |
| Observaçao: | ISSN: 2167-8359. DOI: 10.7717/peerj.5710 Pendência: código PA SEG associado. (ID_PAT: 22404) |
| Palavras-chave: | Metagenome; Network analysis; Mangrove; Litter decomposition. |
| Valor JCR (2017): | 2.118 |
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| Plano de Ação: | ..... |
| Descrição: | FONGARO, C. T.; DEMATTÊ, J. A. M.; RIZZO, R.; SAFANELLI, J. L.; MENDES, W. S.; DOTTO, A. C.; VICENTE, L. E.; FRANCESCHINI, M. H. D.; USTIN, S. L. Improvement of clay and sand quantification based on a novel approach with a focus on multispectral satellite images. Remote Sensing, v. 10, n. 10, article 1555, 2018. |
| Parceria/partes: | ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", University of California - campus Davis, Wageningen University, |
| Peso: | A1 |
| Conteúdo: | Abstract: Soil mapping demands large-scale surveys that are costly and time consuming. It is necessary to identify strategies with reduced costs to obtain detailed information for soil mapping. We aimed to compare multispectral satellite image and relief parameters for the quantification and mapping of clay and sand contents. The Temporal Synthetic Spectral (TESS) reflectance and Synthetic Soil Image (SYSI) approaches were used to identify and characterize texture spectral signatures at the image level. Soil samples were collected (0–20 cm depth, 919 points) from an area of 14,614 km2 in Brazil for reference and model calibration. We compared different prediction approaches: (a) TESS and SYSI; (b) Relief-Derived Covariates (RDC); and (c) SYSI plus RDC. The TESS method produced highly similar behavior to the laboratory convolved data. The sandy textural class showed a greater increase in average spectral reflectance from Band 1 to 7 compared with the clayey class. The prediction using SYSI produced a better result for clay (R2 = 0.83; RMSE = 65.0 g kg−1) and sand (R2 = 0.86; RMSE = 79.9 g kg−1). Multispectral satellite images were more stable for the identification of soil properties than relief parameters. |
| Observaçao: | eISSN: 2072-4292. DOI: https://doi.org/10.3390/rs10101555 Pendência: código SEG associado. (ID_PAT: 22887) |
| Palavras-chave: | Reflectance spectroscopy; Digital soil mapping; Precision agriculture; Bare soil; Soil degradation; Satellite imagery. |
| Valor JCR (2017): | 3.406 |
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| Plano de Ação: | 01.14.03.001.02.05 |
| Descrição: | CASTRO, V. L. S. S. de; CLEMENTE, Z.; JONSSON, C. M.; SILVA, M. S. G. M. e; VALLIM, J. H.; MEDEIROS, A. M. Z.; MARTINEZ, D. S. T. Nanoecotoxicity assessment of graphene oxide and its relationship with humic acid. Environmental Toxicology and Chemistry, v. 37, n. 7, p. 1998-2012, 2018. |
| Parceria/partes: | CENA/USP - Centro de Energia Nuclear na Agricultura, LNNano - Laboratório Nacional de Nanotecnologia, |
| Peso: | A1 |
| Conteúdo: | Abstract: The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity. In the present study, the graphene oxide effect from aquatic ecosystems was assessed considering the interaction with humic acid on 9 organisms: Raphidocelis subcapitata (green algae), Lemna minor (aquatic plant), Lactuca sativa (lettuce), Daphnia magna (planktonic microcrustacean), Artemia salina (brine shrimp), Chironomus sancticaroli (Chironomidae), Hydra attenuata (freshwater polyp), and Caenorhabditis elegans and Panagrolaimus sp. (nematodes). The no-observed-effect concentration (NOEC) was calculated for each organism. The different criteria used to calculate NOEC values were transformed and plotted as a log-logistic function. The hypothetical 5 to 50% hazardous concentration values were, respectively, 0.023 (0.005-0.056) and 0.10 (0.031-0.31) mg L-1 for graphene oxide with and without humic acid, respectively. The safest scenario associated with the predicted no-effect concentration values for graphene oxide in the aquatic compartment were estimated as 20 to 100 μg L-1 (in the absence of humic acid) and 5 to 23 μg L-1 (in the presence of humic acid). Finally, the present approach contributed to the risk assessment of graphene oxide-based nanomaterials and the establishment of nano-regulations. Environ Toxicol Chem 2018;37:1998-2012. |
| Observaçao: | ISSN: 0730-7268, 1552-8618 (online). DOI: 10.1002/etc.4145 (ID_PAT: 22043) |
| Palavras-chave: | Ecotoxicity; Humic acid; Nanotoxicology; Predicted no-effect concentration; Risk assessment |
| Valor JCR (2017): | 3.179 |
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| Plano de Ação: | 01.14.03.001.02.05 |
| Descrição: | DANTZGER, D. D.; JONSSON, C. M.; AOYAMA, H. Mixtures of diflubenzuron and p-chloroaniline changes the activities of enzymes biomarkers on tilapia fish (Oreochromis niloticus) in the presence and absence of soil. Ecotoxicology and Environmental Safety, v. 148, p. 367-376, 2018. |
| Parceria/partes: | UNICAMP - Universidade Estadual de Campinas, |
| Peso: | A1 |
| Conteúdo: | Abstract: The insecticide Diflubenzuron (DFB), used by many fish farming, when metabolized or degraded produces the extremely toxic compound p-chloroaniline (PCA). Once in the aquatic environment, these compounds can form mixtures and their bioavailability depends on factors such as the presence of soil. The toxic effects of the isolated compounds and their mixtures in the proportions: 75%, 50%, and 25% of PCA were analyzed in tilapia (Oreochromis niloticus) in the presence and absence of soil after 96h. The enzymes catalase (CAT), acid (AcP) and alkaline (AlP) phosphatases and alanine (ALT) and aspartate (AST) aminotransferases of the liver of the tilapia (Oreochromis niloticus) were used as biomarkers. DFB and the mixture containing 75% of this compound did not present high toxicity to fish; however, 25 mg/L of PCA alone and 15 mg/L of the mixture with 75% of this compound promoted 50% mortality of tilapia (Oreochromis niloticus). In the presence of soil, these toxicity values decreased to 37 and 25 mg/L, respectively. Independent of the presence of soil, a synergistic effect was observed when the proportion of PCA was 75% and to the mixture, with 25% PCA was observed the antagonistic effect. Different concentrations of the compounds and their mixtures induced CAT activity independently of the presence of soil. Additionally, increases in phosphatases and transaminases activities were observed. In some cases, the enzymes also had their activities decreased and the dose-dependence effects were not observed. This research showed that the presence of soil influenced the toxicity of the compounds but not altered interaction type among them. Diflubenzuron, p-chloroaniline, and mixtures thereof caused disorders in enzymes important for the health of tilapia (Oreochromis niloticus). |
| Observaçao: | ISSN: 0147-6513. DOI: https://doi.org/10.1016/j.ecoenv.2017.10.054 (ID_PAT: 22155) |
| Palavras-chave: | Diflubenzuron; P-chloroaniline; Mixtures; Soil; Enzymes biomarkers; Tilapia. |
| Valor JCR (2017): | 3.974 |
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| Plano de Ação: | 01.14.03.001.02.05 |
| Descrição: | SILVA, G. H. da; CLEMENTE, Z.; KHAN, L. U.; COA, F.; NETO, L. L. R.; CARVALHO, H. W. P. de; CASTRO, V. L. S. S. de; MARTINEZ, D. S. T.; MONTEIRO, R. T. R. Toxicity assessment of TiO2-MWCNT nanohybrid material with enhanced photocatalytic activity on Danio rerio (Zebrafish) embryos. Ecotoxicology and Environmental Safety, v. 165, p. 136-143, 2018. |
| Parceria/partes: | UNICAMP - Universidade Estadual de Campinas, CNPEM - Centro Nacional de Pesquisa em Energia e Materias, CENA/USP - Centro de Energia Nuclear na Agricultura, |
| Peso: | A1 |
| Conteúdo: | Abstract: The increasing production and use of nanomaterials is causing serious concerns about their safety to human and environmental health. However, the applications of titanium dioxide nanoparticles (TiO2NP) and multiwalled carbon nanotubes (MWCNT) hybrids has grown considerably, due to their enhanced photocatalytic efficiency. To our knowledge, there are no reports available to the scientific community about their toxicity. In this work, we perform a toxicity assessment of TiO2NP and TiO2-MWCNT nanohybrid materials using Zebrafish embryos standardized 96 h early life stage assay, under different exposure conditions (with and without UV light exposure). After exposure the parameters assessed were acute toxicity, hatching rate, growth, yolk sac size, and sarcomere length. In addition, μ-probe X-ray fluorescence spectroscopy (µ-XRF) was employed to observe if nanoparticles were uptaken by zebrafish embryos and consequently accumulated in their organisms. Neither TiO2NP nor TiO2-MWCNT nanohybrids presented acute toxicity to the zebrafish embryos. Moreover, TiO2NP presents sublethal effects for total length (with and without UV light exposure) on the embryos. This work contributes to the understanding of the potential adverse effects of the emerging nanohybrid materials towards safe innovation approaches in nanotechnology. |
| Observaçao: | ISSN: 147-6513. DOI: https://doi.org/10.1016/j.ecoenv.2018.08.093 (ID_PAT: 22248) |
| Palavras-chave: | TiO2; Carbon nanotubes; Nanohybrids; Nanocomposites; Nanotoxicity. |
| Valor JCR (2017): | 3.974 |
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| Plano de Ação: | 01.14.09.001.03.05 |
| Descrição: | DEL’ARCO SANCHES, I.; FEITOSA, R. Q.; ACHANCCARAY, P.; SOARES, M. D.; LUIZ, A. J. B.; SCHULTZ, B.; MAURANO, L. E. P. Campo Verde database: seeking to improve agricultural remote sensing of tropical areas. IEEE Geoscience and Remote Sensing Letters, v. 15, n. 3, p. 369-373, 2018. |
| Parceria/partes: | PUC - Pontifícia Univerdade Católica do Rio de Janeiro, INPE - Instituto Nacional de Pesquisas Espaciais, Geoambiente Sensoriamento Remoto Ltda., |
| Peso: | A1 |
| Conteúdo: | Abstract: In tropical/subtropical regions, the favorable climate associated with the use of agricultural technologies, such as no tillage, minimum cultivation, irrigation, early varieties, desiccants, flowering inducing, and crop rotation, makes agriculture highly dynamic. In this letter, we present the Campo Verde agricultural database. The purpose of creating and sharing these data is to foster advancement of remote sensing technology in areas of tropical agriculture, primarily the development and testingof methods for croprecognition andagriculturalmapping. Campo Verde is a municipality of Mato Grosso state, localized in the Cerrado (Brazilian Savanna) biome, in central west Brazil. Soybean, maize, and cotton are the primary crops cultivated in this region. Double cropping systems are widely adopted in this area. There is also livestock and forestry production. Our database provides the land-use classes for 513 fields by month for one Brazilian crop year (between October 2015 and July 2016). This information was gathered during two field campaigns in Campo Verde (December 2015 and May 2016) and by visual interpretation of a time series of Landsat-8/Operational Land Imager (OLI) images using an experienced interpreter. A set of 14 preprocessed synthetic aperture radar Sentinel-1 and 15 Landsat-8/OLI mosaic images is also made available. It is important to promote the use of radar data for tropical agricultural applications, especially because the use of optical remote sensing in these regions is hindered by the high frequency of cloud cover. To demonstrate the utility of our database, results of an experiment conducted using the Sentinel-1 data set are presented. |
| Observaçao: | ISSN: 1545-598X (print), 1558-0571. DOI: 10.1109/LGRS.2017.2789120 (ID_PAT: 21717) |
| Palavras-chave: | Agricultural mapping/monitoring; Double cropping systems; Free available database; Remote sensing; Synthetic aperture radar (SAR); Tropical agriculture. |
| Valor JCR (2017): | 2.892 |
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| Plano de Ação: | 01.14.09.001.06.04 |
| Descrição: | RODRIGUES, G. S.; MARTINS, C. R.; BARROS, I. de Sustainability assessment of ecological intensification practices in coconut production. Agricultural Systems, v. 165, p. 71-84, 2018. |
| Parceria/partes: | Embrapa Clima Temperado (CPACT), Embrapa Tabuleiros Costeiros (CPATC), |
| Peso: | A1 |
| Conteúdo: | Abstract: Environmental impact and economic performance assessments are important subjects for the definition of strategies for sustainable management in agriculture. The objective of the present study was to assess such impacts in a set of reference farms dedicated to coconut production, conforming a gradient with respect to the adoption of technologies and ecological intensification practices. Ranging in scale from smaller family farms to larger corporate enterprises, and from coconut monocultures to diversified crops and integrated coconut-livestock systems, the six cases were studied through a multi-attribute utility model comprising 62 indicators related to five sustainability dimensions: (i) Landscape ecology, (ii) Environmental quality, (iii) Sociocultural values, (iv) Economic values and (v) Management and administration. Detailed cash flow analyses permitted a critical view regarding the influence of technology adoption, ecological intensification, and management for sustainability as criteria for economic viability. The results attest to the value of produce diversification as opportunity toward technology integration, which correlated positively with higher sustainability indices in all dimensions. Tradeoff analysis showed a negative correlation between socio-environmental performance indices and profitability, whereas none of the cases studied showed constrained economic viability, indicating that ecological intensification in coconut production can also entail social improvements, by promoting fairer share of revenues and benefits among stakeholders. Recommendations issued to farmers and management teams, related with agronomic factors and practices adopted in production intensification, favor the communication of appropriate mechanisms for technology adoption, translating farm-level sustainability assessments into action for sustainability. |
| Observaçao: | ISSN: 0308-521X. DOI: https://doi.org/10.1016/j.agsy.2018.06.001 (ID_PAT: 22007) |
| Palavras-chave: | Impact assessment; Economic performance; Environmental management; Sustainable agriculture; APOIA-NovoRural. |
| Valor JCR (2017): | 3.004 |
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| Plano de Ação: | 01.15.02.001.06.05 |
| Descrição: | GENUÁRIO, D. B.; SANT´ANNA, C. L.; MELO, I. S. de Elucidating the Cronbergia (cyanobacteria) dilemma with the description of Cronbergia amazonensis sp. nov. isolated from Solimões river (Amazonia, Brazil). Algal Research, v. 29, p. 233-241, 2018. |
| Parceria/partes: | Instituto de Botânica, São Paulo/SP, |
| Peso: | A1 |
| Conteúdo: | Abstract: The settlement of the genus Cronbergia as novel taxa has been frequently questioned among cyanobacterial taxonomists. Its validity is uncertain mainly because of the high similarity (97.4%) found between the 16S rRNA gene sequences of the type-species Cronbergia siamensis SAG 11.82 and Cylindrospermum stagnale PCC7417, despite their substantial morphological differences. In the present study, one filamentous heterocytous cyanobacterial strain isolated from the Solimões river (Brazilian Amazonia) was studied in detail by means of morphology and molecular phylogeny as well by ITS (internal transcribed spacer) secondary structures. According to the results, this novel strain showed all the morphological features recognized for the Cronbergia genus and its 16S rRNA gene sequence clustered with C. siamensis SAG 11.82, leading to the description of C. amazonensis as a novel species. However, this cluster did not group to the 16S rRNA gene sequence used in the description of the genus Cronbergia. Additionally, this study demonstrated the existence of multiple 16S rRNA gene sequences retrieved from the type-species, Cronbergia siamensis SAG 11.82, which fall into two distinct phylogenetic lineages. Herein, we suggest considering the C. amazonensis-cluster as the typical Cronbergia lineage. Meanwhile, the sequence originally adopted to describe the genus Cronbergia should be designated as a member of the genus Cylindrospermum. This study also emphasizes that both morphologic and genetic data must be generated with caution in order to avoid more misunderstandings in cyanobacterial systematics. |
| Observaçao: | ISSN: 2211-9264. DOI: https://doi.org/10.1016/j.algal.2017.11.034 (ID_PAT: 21689) |
| Palavras-chave: | Anabaenopsis; Cylindrospermum; ITS (internal transcribed spacer); Richelia; Secondary structures; 16S rRNA (ribosomal ribonucleic acid) gene. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 01.17.02.001.04.07 |
| Descrição: | SOARES, M. P.; OLIVEIRA, F. C.; CARDOSO, I. L.; URBINATI, E. C.; CAMPOS, C. M. de; HISANO, H. Glucan-MOS® improved growth and innate immunity in pacu stressed and experimentally infected with Aeromonas hydrophila. Fish and Shellfish Immunology, v. 73, p. 133-140, 2018. |
| Parceria/partes: | UEMS - Universidade Estadual de Mato Grosso do Sul, UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, |
| Peso: | A1 |
| Conteúdo: | Abstract: We tested the efficacy of a commercial product (Glucan-MOS®) derived from yeast Saccharomyces cerevisiae, containing two combined products, β-1,3-1,6 glucans and mannans on the growth, feed efficiency, stress and innate immune responses of juvenile pacu (Piaractus mesopotamicus) after a stressful handling and bacterial inoculation. For this, we evaluated the serum cortisol and plasma glucose levels, the respiratory activity of leukocytes, the serum lysozyme levels, as well as the number of circulating erythrocytes and leukocytes of fish fed during 30 days with diets containing increased levels of Glucan-MOS (0.0, 0.1, 0.2, 0.4 and 0.8%). The supplementation of 0.1% improved weight gain, feed conversion and the protein efficiency ratio compared to a control diet. The 0.2 and 0.4% Glucan-MOS® diets were sufficient to increase the respiratory burst of leukocytes and lysozyme activity, the number of thrombocytes, neutrophils and monocytes in the blood after a stressful handling and bacterial challenge, and minimized stress response as shown by decreased cortisol and glucose levels when compared to the control. The results of this work reinforce the benefits of the adoption of feeding strategies including combination of both β-1,3-1,6 glucans and mannans as a dietary supplement in periods prior to intensive management. The 30-day period was sufficient to stimulate growth performance, improve nutrient utilization, minimize stress response and modulate innate immunity responses. |
| Observaçao: | ISSN: 1050-4648. DOI: https://doi.org/10.1016/j.fsi.2017.11.046 (ID_PAT: 21821) |
| Palavras-chave: | Bacterial challenge; β-1,3-1,6 glucans; Mannan; Handling; Immunostimulants; Stress. |
| Valor JCR (2017): | 3.185 |
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| Plano de Ação: | 01.17.02.001.05.05 |
| Descrição: | SILVA, M. G. da; PACKER, A. P. ; SAMPAIO, F. G.; MARANI, L.; MARIANO, E. V. C.; PAZIANOTTO, R. A. A. ; FERREIRA, W. J.; ALVALÁ, P. C. Impact of intensive fish farming on methane emission in a tropical hydropower reservoir. Climatic Change, v. 150, n. 3-4, p. 150-195, 2018. |
| Parceria/partes: | CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico, INPE - Instituto Nacional de Pesquisas Espaciais, UFAL - Universidade Federal de Alagoas, |
| Peso: | A1 |
| Conteúdo: | Abstract: Fisheries and aquaculture are important sources of food for hundreds of millions of people around the world. World fish production is projected to increase by 15% in the next 10 years, reaching around 200 million tonnes per year. The main driver of this increase will be based on fish farming management in developing countries. In Brazil, fish farming is increasing due to the climate conditions and large supply of water resources, with the production system based on Nile tilapia (Oreochromis niloticus) farming in reservoirs. Inland waters like reservoirs are a natural source of methane (CH4) to the atmosphere. However, knowledge of the impact from intensive fish production in net cages on CH4 fluxes is not well known. This paper presents in situ measurements of CH4 fluxes and dissolved CH4 (DM) in the Furnas Hydroelectric Reservoir in order to evaluate the impact of fish farming on methane emissions. Measurements were taken in a control area without fish production and three areas with fish farming. The overall mean of diffusive methane flux (DMF) (5.9 ± 4.5 mg CH4 m−2 day−1) was significantly lower when compared to the overall mean of bubble methane flux (BMF) (552.9 ± 1003.9 mg CH4 m−2 day−1). The DMF and DM were significantly higher in the two areas with fish farming, whereas the BMF was not significantly different. The DMF and DM were correlated to depth and chlorophyll-a. However, the low production of BMF did not allow the comparison with the limnological parameters measured. This case study shows that CH4 emissions are influenced more by reservoir characteristics than fish production. Further investigation is necessary to assess the impact of fish farming on the greenhouse gas emissions. |
| Observaçao: | ISSN: 0165-0009 (Print), 1573-1480 (Online). DOI: https://doi.org/10.1007/s10584-018-2281-4 (ID_PAT: 22437) |
| Palavras-chave: | |
| Valor JCR (2017): | 3.537 |
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| Plano de Ação: | 01.17.02.001.06.06 |
| Descrição: | BARRETO, F. M.; SILVA, M. R. da; BRAGA, P. A. de C.; BRAGOTTO, A. P. A.; HISANO, H.; REYES, F. G. R. Evaluation of the leaching of florfenicol from coated medicated fish feed into water. Environmental Pollution, v. 242, Part B, p. 1245-1252, 2018. |
| Parceria/partes: | UNICAMP - Universidade Estadual de Campinas, |
| Peso: | A1 |
| Conteúdo: | Abstract: Florfenicol is one of the most-used antimicrobial agents in global fish farming. Nevertheless, in most countries, its use is not conducted in accordance with good practices. The aim of this work was to evaluate the leaching of florfenicol from coated fish feed into the water. Analytical methods were developed and validated for the quantitation of florfenicol in medicated feed and water by UHPLC-MS/MS. Florfenicol residues in the water were quantified after 5- and 15-min exposures of the medicated feed in the water at 22 and 28 °C and at pH 4.5 and 8.0. The influence of pellet size and three coating agents (vegetable oil, carboxymethylcellulose, and low-methoxylated pectin) on the leaching of the drug was also assessed. Pellet size, coating agent, water temperature, and time of exposure significantly (p < 0.05) affected florfenicol leaching, while water pH did not interfere with the leaching. Coating with vegetable oil was the most efficient method to reduce florfenicol leaching, while coating with carboxymethylcellulose presented the highest leaching (approximately 60% after 15 min at 28 °C). Thus, the coating agent has a significant effect on the florfenicol leaching rate and, consequently, on the necessary dose of the drug to be administered. Moreover, it is worth mentioning that higher florfenicol leaching will pose a greater risk to environmental health, specifically in terms of the development of bacteria resistant to florfenicol. Additional studies are needed with other polymers and veterinary drugs used in medicated feed for fish farming. |
| Observaçao: | ISSN: 0269-7491. DOI: https://doi.org/10.1016/j.envpol.2018.08.017 (ID_PAT: 22170) |
| Palavras-chave: | Fish feed; Florfenicol; Leaching; Pectin; Carboxymethylcellulose. |
| Valor JCR (2017): | 4.358 |
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| Plano de Ação: | 02.13.02.042.00.05 |
| Descrição: | RAKOCEVIC, M.; RIBEIRO, R. V.; MARCHIORI, P. E. R.; FILIZOLA, H. F.; BATISTA, E. R. Structural and functional changes in coffee trees after 4 years under free air CO2 enrichment . Annals of Botany, v. 121, n. 5, p. 1065–1078, 2018. |
| Parceria/partes: | UFLA - Universidade Federal de Lavras, UNICAMP - Universidade Estadual de Campinas, |
| Peso: | A1 |
| Conteúdo: | Abstract: Background and Aims. Climate forecasts suggest that [CO2] in the atmosphere will continue to increase. Structural and ecophysiological responses to elevated air [CO2] (e[CO2]) in tree species are contradictory due to species-dependent responses and relatively short-term experiments. It was hypothesized that long-term exposure (4 year) to e[CO2] would change canopy structure and function of Coffea arabica trees. Methods. Coffee plants were grown in a FACE (free air CO2 enrichment) facility under two air [CO2]: actual and elevated (actual + approx. 200 μL CO2 L–1). Plants were codified following the VPlants methodology to obtain coffee mock-ups. Plant canopies were separated into three 50 cm thick layers over a vertical profile to evaluate their structure and photosynthesis, using functional–structural plant modelling. Key Results. Leaf area was strongly reduced on the bottom and upper canopy layers, and increased soil carbon concentration suggested changes in carbon partitioning of coffee trees under e[CO2]. Increased air [CO2] stimulated stomatal conductance and leaf photosynthesis at the middle and upper canopy layers, increasing water-use efficiency. Under e[CO2], plants showed reduced diameter of the second-order axes and higher investment in the youngest third to fifth-order axes. Conclusions The responses of Arabica coffee grown under long-term exposure to e[CO2] integrated structural and functional modifications, which balanced leaf area loss through improvements in leaf and whole-plant photosynthesis. |
| Observaçao: | ISSN: 0305-7364. DOI: 10.1093/aob/mcy011 (ID_PAT: 22920) |
| Palavras-chave: | Coffea arabica; FACE; Leaf area; Metamer; Photosynthetic light response curve; Plant architecture; Stomatal conductance; Transpiration; Vertical profile; VPlants; Whole-plant photosynthesis. |
| Valor JCR (2017): | 3.646 |
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| Plano de Ação: | 02.14.03.017.00.05 |
| Descrição: | PINTO, O. R. O.; CARDOSO, J. E.; MAIA, A. de H. N.; PINTO, C. M.; LIMA, J. S.; VIANA, F. M. P.; MARTINS, M. V. V. Reaction of commercial clones of cashew to powdery mildew in northeastern Brazil. Crop Protection, v. 112, p. 282-287, Oct. 2018. |
| Parceria/partes: | Embrapa Agroindústria Tropical (CNPAT), UFC - Universidade Federal do Ceará, |
| Peso: | A1 |
| Conteúdo: | Abstract: Cashew powdery mildew, caused by Erysiphe quercicola, is one of the main disease problems of cashew trees in Brazil. Thus, research to study the reaction of commercial cashew clones under different epidemiological stages of the disease is very important for identifying resistant clones. The objective of this research was to evaluate the reaction of commercial clones of cashew to powdery mildew by monitoring the disease during three disease cycles. The study was carried out at Embrapa Agroindústria Tropical, Pacajus Experimental Field, Ceará, Brazil, during 2012, 2013 and 2014 using eleven commercial clones of cashew (CCP 09, CCP 76, CCP 100, CCP 06, EMBRAPA 51, EMBRAPA 50, BRS 265, BRS 189, BRS 274, BRS 275 and BRS 226). Powdery mildew severity on inflorescences was estimated using a descriptive scale of severity consisting of scores ranging from 0 to 4. The transformed data were used to estimate the area under the disease progression curve (AUDPC) and the rate of infection. Based on similarities in disease severity estimates with time, clones were clustered using multivariate clustering analysis. Epidemics of cashew powdery mildew differed between the three cycles in terms of duration and severity. The clones were classified into four clusters of similar clones, defined by the graphical analysis on the basis of the powdery mildew severity. Clones BRS 274, BRS 275, CCP 1001 and BRS 226 attained lower AUDPC and clones BRS 189 and CCP 06 showed higher AUDPC. The results show evidence of partial resistance to powdery mildew among commercially grown cashew clones. Clones BRS 274, BRS 275, BRS 226 and CCP 1001 were the most resistant, while CCP 06 and BRS 189 clones were the most susceptible to powdery mildew. The AUDPC seems to be suitable for discriminating between genotypes, whereas the rate of disease progression may be used for establishing a threshold in the evaluation of other control methods, as it does not clearly differentiate between disease reactions. |
| Observaçao: | ISSN: 0261-2194. DOI: https://doi.org/10.1016/j.cropro.2018.06.016 (ID_PAT: 22921) |
| Palavras-chave: | Bunch rot; Blossom and shoot blight; Gray mold; Pre- and postharvest fungicides; Anilinopyrimidines; Dicarboximides; Phenylpyrroles. |
| Valor JCR (2017): | 1.920 |
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| Plano de Ação: | 02.15.07.001.00.02 |
| Descrição: | KAVAMURA, V. N.; HAYAT, R.; CLARK, I. M.; ROSSMANN, M.; MENDES, R.; HIRSCH, P. R.; MAUCHLINE, T. H. Inorganic nitrogen application affects both taxonomical and predicted functional structure of wheat rhizosphere bacterial communities. Frontiers in Microbiology, Lausanne, v. 9, 2018. Article 1074. 15 p. |
| Parceria/partes: | PMAS Arid Agriculture University, Rothamsted Research, |
| Peso: | A1 |
| Conteúdo: | The effects of fertilizer regime on bulk soil microbial communities have been well studied, but this is not the case for the rhizosphere microbiome. The aim of this work was to assess the impact of fertilization regime on wheat rhizosphere microbiome assembly and 16S rRNA gene-predicted functions with soil from the long term Broadbalk experiment at Rothamsted Research. Soil from four N fertilization regimes (organic N, zero N, medium inorganic N and high inorganic N) was sown with seeds of Triticum aestivum cv. Cadenza. 16S rRNA gene amplicon sequencing was performed with the Illumina platform on bulk soil and rhizosphere samples of 4-week-old and flowering plants (10 weeks). Phylogenetic and 16S rRNA gene-predicted functional analyses were performed. Fertilization regime affected the structure and composition of wheat rhizosphere bacterial communities. Acidobacteria and Planctomycetes were significantly depleted in treatments receiving inorganic N, whereas the addition of high levels of inorganic N enriched members of the phylum Bacteroidetes, especially after 10 weeks. Bacterial richness and diversity decreased with inorganic nitrogen inputs and was highest after organic treatment (FYM). In general, high levels of inorganic nitrogen fertilizers negatively affect bacterial richness and diversity, leading to a less stable bacterial community structure over time, whereas, more stable bacterial communities are provided by organic amendments. 16S rRNA gene-predicted functional structure was more affected by growth stage than by fertilizer treatment, although, some functions related to energy metabolism and metabolism of terpenoids and polyketides were enriched in samples not receiving any inorganic N, whereas inorganic N addition enriched predicted functions related to metabolism of other amino acids and carbohydrates. Understanding the impact of different fertilizers on the structure and dynamics of the rhizosphere microbiome is an important step toward developing strategies for production of crops in a sustainable way. |
| Observaçao: | ISSN: 1664-302X. DOI: 10.3389/fmicb.2018.01074 (ID_PAT: 22854) |
| Palavras-chave: | Wheat; Rhizosphere; Bacterial communities; Fertilizer; Functional diversity; Sustainable intensification. |
| Valor JCR (2017): | 4.019 |
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| Plano de Ação: | 02.15.07.001.00.03 |
| Descrição: | KAVAMURA, V. N.; TAKETANI, R. G.; FERREIRA, C.; MELO, I. S. de; MENDES, R. The role of species turnover in structuring bacterial communities in a local scale in the cactus rhizosphere. Plant and Soil, v. 425, n. 1-2, p. 101-112, 2018. |
| Parceria/partes: | |
| Peso: | A1 |
| Conteúdo: | Abstract: Background and aims: Cereus jamacaru is a native cactus in the semiarid biome caatinga able to withstand long periods of drought. Here, we studied the rhizosphere microbiome of this cactus to understand how precipitation affects the assembly of bacterial communities from the taxonomical and functional perspectives. Methods: We selected three C. jamacaru plants in the caatinga biome, sampled the rhizosphere soil from the same plants during rainy and dry seasons and performed shotgun sequencing from total DNA isolated from rhizosphere using Ion Torrent technology. Results: Acidobacteria, Actinobacteria and Proteobacteria showed increase in relative abundance during the rainy season when compared to dry season. Five major functional groups were significantly different, including differences in amino acids and derivatives, carbohydrates, protein metabolism, respiration, and RNA metabolism. Taxonomically, the assembly of bacterial communities follows a neutral model. Conclusions: The assembly of bacterial communities in the rhizosphere of C. jamacaru is affected by precipitation resulting in different taxonomical and functional community patterns during dry and rainy seasons. We attribute these differences on rhizosphere communities composition to dispersal limitation of microorganisms caused by low pore connectivity due to low water content in the soil, which leads to spatially isolate communities during the dry season. |
| Observaçao: | ISSN: 0032-079X (print), 1573-5036 (online). DOI: https://doi.org/10.1007/s11104-018-3570-4 (ID_PAT: 21783) |
| Palavras-chave: | Bacterial diversity; Pore connectivity; Rhizosphere bacterial communities Semiarid. |
| Valor JCR (2017): | 3.306 |
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| Plano de Ação: | 03.16.00.082.00.04 |
| Descrição: | SAAD, S. I.; SILVA, J. M. da; SILVA, M. L. N.; GUIMARAES, J. L. B.; SOUSA JUNIOR, W. C.; FIGUEIREDO, R. de O.; ROCHA, H. R. da Analyzing ecological restoration strategies for water and soil conservation. Plos One, v. 13, n. 2, e0192325, 2018. |
| Parceria/partes: | UFLA - Universidade Federal de Lavras, USP - Universidade de São Paulo, ITA - Instituto Tecnológico de Aeronáutica, Aquaflora Meio Ambiente Ltda., UFRN - Universidade Federal do Rio Grande do Norte, |
| Peso: | A1 |
| Conteúdo: | Abstract: The choice of areas for nature conservation involves the attempt to maximize the benefits, whether by carrying out an economic activity or by the provision of Ecosystem Services. Studies are needed to improve the understanding of the effect of the extent and position along the watershed of restored areas on soil and water conservation. This study aimed to understand how different restoration strategies might reflect in soil conservation and sediment retention. Using InVEST tool, sediment transport was simulated in a small 12 km2 watershed (Posses River, in Southeast Brazil), where one of first Brazilian Payment for Ecosystem Services (PES) projects is being carried out, comparing different hypothetical restoration strategies. With 25% of restoration, sediment export decreased by 78% for riparian restoration, and 27% for the steepest slopes restoration. On the other hand, the decrease in soil loss was lower for riparian restoration, with a 16% decrease, while the steepest slopes restoration reduced it by 21%. This mismatch between the reduction of sediment export and soil loss was explained by the fact that forest not only reduces soil loss locally but also traps sediment arriving from the upper parts of the watershed. While the first mechanism is important to provide soil stability, decreasing the risk of landslip, and to maintain agricultural productivity, the second can improve water quality and decrease the risk of silting, with positive effects on the water reservoirs at the outlet of the watershed. This suggests that Riparian and the Steepest Slopes restoration strategies are complementary in the sense of preventing sediments from reaching the water bodies as well as protecting them at their origin (with the reduction of erosion), so it will be advisable to consider the two types of restoration. |
| Observaçao: | ISSN: 1932-6203. DOI: https://doi.org/10.1371/journal.pone.0192325 (ID_PAT: 21719) |
| Palavras-chave: | |
| Valor JCR (2017): | 2.766 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | NUNES, K. S. D.; VALLIM, J. H.; ASSALIN, M. R.; QUEIROZ, S. C. N. de; PARAÍBA, L. C.; JONSSON, C. M.; REYES, F. G. R. Depletion study, withdrawal period calculation and bioaccumulation of sulfamethazine in tilapia (Oreochromis niloticus) treated with medicated feed. Chemosphere, v. 197, p. 89-85, 2018. |
| Parceria/partes: | UNICAMP - Universidade Estadual de Campinas, |
| Peso: | A1 |
| Conteúdo: | Abstract: The residue depletion of sulfamethazine (SMZ) was evaluated in tilapia (Oreochromis niloticus) after 11 days of administration of medicated feed containing SMZ, at the dose of 422 mg/kg body weight (bw). The determination of SMZ in feed and tilapia fillet was carried out using the QuEChERS approach for sample preparation, and high performance liquid chromatography with diode array detector (HPLC-DAD) and ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QToF-MS) for quantitation, respectively. Both methods were validated based on international and Brazilian guidelines and shown to be suitable for the intended purposes. The withdrawal period to reach the maximum residue level (MRL) of 100 μg/kg, according to the European Union (EU) legislative framework to all substances belonging to the sulfonamide (SA) group (EU, 2010), was 10 days (260 °C-day). After treatment, the maximum level of SMZ accumulation in the tilapia muscle was 1.6 mg/kg. SMZ was shown to be quickly excreted by tilapia. Thus, considering the acceptable daily intake of SMZ established by the Codex Commission (0–0.05 mg/kg bw), and a factor of 5 times the upper amount of fish consumption in Brazil (38 kg/year), this study showed that there is a low risk of adverse effects to consumers. This study offers subsidies not only for the establishment of public policies with regard to the use of veterinary drugs currently not allowed in a country by their legal legislative framework for fish farming, but also to fish producers for the proper handling to ensure safe fish fillets. |
| Observaçao: | ISSN: 0045-6535. DOI: https://doi.org/10.1016/j.chemosphere.2018.01.030 (ID_PAT: 21693) |
| Palavras-chave: | Tilapia; Sulfamethazine; Sulfadimidine; Depletion study; QuEChERS; LC-MS/MS. |
| Valor JCR (2017): | 4.427 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | DAVIDSON, E. A.; MARKEWITZ, D.; FIGUEIREDO, R. de O.; CAMARGO, P. B. de Nitrogen fixation inputs in pasture and early successional forest in the Brazilian Amazon region: evidence from a claybox mesocosm study. Journal of Geophysical Research: Biogeosciences, v. 123, n. 2, p. 712-721, 2018. |
| Parceria/partes: | University of Georgia, University of Maryland, CENA/USP - Centro de Energia Nuclear na Agricultura, |
| Peso: | A1 |
| Conteúdo: | The role of biological nitrogen fixation (BNF) during secondary forest succession and in tropical pastures has been investigated and debated for several decades. Here we present results of a replicated experimental study in a degraded cattle pasture of eastern Amazonia using mass balance and a 15N tracer in lined soil pit mesocosms with three treatments: (1) plant-free control plots, (2) pasture grass Brachiaria brizantha, and (3) regrowth of early successional secondary forest species. Accumulation of N in grass biomass slightly exceeded estimates of net N mineralization from the plant-free control plots but was within the margin of error, so inputs of BNF may not have been needed. In contrast, the secondary forest vegetation accumulated about 3 times as much biomass N annually as the net N mineralization estimate, suggesting at least some role for BNF. Based on isotopic and mass measurements of N-fixing species, BNF was estimated to contribute at least 27 ± 3% of mean annual plant uptake in the secondary forest regrowth vegetation plots. Although BNF is probably important for recuperation of tropical secondary forests following land use change, the majority of the N taken up by both grasses and secondary forest regrowth arose from mineralization of the stocks of soil N. |
| Observaçao: | ISSN: 2169-8961. DOI: https://doi.org/10.1002/2017JG004103 Projeto para cadastro Ainfo: 02.02.05.032.02.02 (CPATU). (ID_PAT: 21721) |
| Palavras-chave: | |
| Valor JCR (2017): | 3.484 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | SILVA , J. do N.; MASCARIN, G. M.; GOMES, I. C. do S.; TINOCO, R. S.; QUINTELA, E. D.; CASTILHO, L. dos R.; FREIRE, D. M. G. New cost-effective bioconversion process of palm kernel cake into bioinsecticides based on Beauveria bassiana and Isaria javanica. Applied Microbiology and Biotechnology, v. 102, n. 6, p. 2595-2606, 2018. |
| Parceria/partes: | Embrapa Arroz e Feijão (CNPAF), UFRJ - Universidade Federal do Rio de Janeiro, Agropalma S.A., |
| Peso: | A1 |
| Conteúdo: | Abstract: The present study aimed to add value to palm oil by-products as substrates to efficiently produce conidia of Beauveria bassiana and Isaria javanica (Hypocreales: Cordycipitaceae) for biological control of the whitefly Bemisia tabaci (Hemiptera: Aleyrodidae), through a solid-state fermentation process using palm kernel cake and palm fiber as nutrient source and solid matrix, respectively. The optimum culture conditions yielded high concentrations of viable conidia after air-drying, when the fungi were grown on palm kernel cake (B. bassiana 7.65 × 109 and I. javanica 2.91 × 109 conidia g−1 dry substrate) after 6 days under optimal growth conditions set to 60% substrate moisture and 32 °C. Both fungal strains exhibited high efficacy against third-instar whitefly nymphs, inducing mortality up to 62.9 and 56.6% by B. bassiana and I. javanica, respectively, assessed after 9 days post-application in a screenhouse. Furthermore, we noted that insect mortality was strongly correlated with high atmospheric moisture, while B. bassiana appeared to require shorter accumulative hours under high moisture to kill whitefly nymphs compared to I. javanica. Our results underpin a feasible and cost-effective mass production method for aerial conidia, using palm kernel as the main substrate in order to produce efficacious fungal bioinsecticides against an invasive whitefly species in Brazil. Finally, our fermentation process may offer a sustainable and cost-effective means to produce eco-friendly mycoinsecticides, using an abundant agro-industrial by-product from Brazil that will ultimately assist in the integrated management of agricultural insect pests. |
| Observaçao: | ISSN: 0175-7598 (print), 1432-0614 (online). DOI: https://doi.org/10.1007/s00253-018-8805-z Publicação vinculada à Atividade 02.11.07.005.00.03.007 do Plano de Ação 02.11.07.005.00.03.07 (CNPAF), ambos encerrados. (ID_PAT: 21971) |
| Palavras-chave: | Solid-state fermentation; Agro-industrial by-products; Entomopathogenic fungi; Cordycipitaceae; Biological control; Bemisia tabaci. |
| Valor JCR (2017): | 3.340 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | PAULI, G.; MASCARIN, G. M.; EILENBERG, J.; DELALIBERA JUNIOR, I. Within-host competition between two entomopathogenic fungi and a granulovirus in Diatraea saccharalis (Lepidoptera: Crambidae). Insects, v. 9, n. 2, article 64, 2018. |
| Parceria/partes: | University of Copenhagen, ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", |
| Peso: | A1 |
| Conteúdo: | Abstract: We provide insights into how the interactions of two entomopathogenic fungi and a virus play a role in virulence, disease development, and pathogen reproduction for an economically important insect crop pest, the sugarcane borer Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae). In our model system, we highlight the antagonistic effects of the co-inoculation of Beauveria bassiana and granulovirus (DisaGV) on virulence, compared to their single counterparts. By contrast, combinations of Metarhizium anisopliae and B. bassiana, or M. anisopliae and DisaGV, have resulted in additive effects against the insect. Intriguingly, most cadavers that were derived from dual or triple infections, produced signs/symptoms of only one species after the death of the infected host. In the combination of fungi and DisaGV, there was a trend where a higher proportion of viral infection bearing conspicuous symptoms occurred, except when the larvae were inoculated with M. anisopliae and DisaGV at the two highest inoculum rates. Co-infections with B. bassiana and M. anisopliae did not affect pathogen reproduction, since the sporulation from co-inoculated larvae did not differ from their single counterparts. |
| Observaçao: | ISSN: 2075-4450. DOI: 10.3390/insects902006 Resultado de período de mestrado na ESALQ, sem vínculo ao SEG/Embrapa. (ID_PAT: 22022) |
| Palavras-chave: | Mixed infection; Virulence; Beauveria bassiana; Metarhizium anisopliae; Beta-baculovirus; Sugarcane borer. |
| Valor JCR (2017): | 1.848 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | CONGIO, G. F. de S.; BATALHA, C. D. A.; CHIAVEGATO, M. B.; BERNDT, A. ; OLIVEIRA, P. P. A.; FRIGHETTO, R. T. S.; MAXWELL, T. M. R.; GREGORINI, P.; SILVA, S. C. da Strategic grazing management towards sustainable intensification at tropical pasture-based dairy systems. Science of the Total Environment, v. 636, p. 872-880, 2018. |
| Parceria/partes: | Embrapa Pecuária Sudeste (CPPSE), ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", Lincoln University, |
| Peso: | A1 |
| Conteúdo: | Abstract: Agricultural systems are responsible for environmental impacts that can be mitigated through the adoption of more sustainable principles. Our objective was to investigate the influence of two pre-grazing targets (95% and maximum canopy light interception during pasture regrowth; LI95% and LIMax, respectively) on sward structure and herbage nutritive value of elephant grass cv. Cameroon, and dry matter intake (DMI), milk yield, stocking rate, enteric methane (CH4) emissions by Holstein × Jersey dairy cows. We hypothesized that grazing strategies modifying the sward structure of elephant grass (Pennisetum purpureum Schum.) improves nutritive value of herbage, increasing DMI and reducing intensity of enteric CH4 emissions, providing environmental and productivity benefits to tropical pasture-based dairy systems. Results indicated that pre-sward surface height was greater for LIMax (≈135 cm) than LI95% (≈100 cm) and can be used as a reliable field guide for monitoring sward structure. Grazing management based on LI95% criteria improved herbage nutritive value and grazing efficiency, allowing greater DMI, milk yield and stocking rate by dairy cows. Daily enteric CH4 emission was not affected; however, cows grazing elephant grass at LI95% were more efficient and emitted 21% less CH4/kg of milk yield and 18% less CH4/kg of DMI. The 51% increase in milk yield per hectare overcame the 29% increase in enteric CH4 emissions per hectare in LI95% grazing management. Thereby the same resource allocation resulted in a 16% mitigation of the main greenhouse gas from pasture-based dairy systems. Overall, strategic grazing management is an environmental friendly practice that improves use efficiency of allocated resources through optimization of processes evolving plant, ruminant and their interface, and enhances milk production efficiency of tropical pasture-based systems. |
| Observaçao: | ISSN: 0048-9697. DOI: https://doi.org/10.1016/j.scitotenv.2018.04.301 Publicação associada a projeto FAPESP liderado por Sila Carneiro da Silva/ESALQ-USP. (ID_PAT: 22068) |
| Palavras-chave: | Canopy light interception; Enteric methane emissions; Herbage quality; Land-use improvement; Milk production efficiency; Elephant grass. |
| Valor JCR (2017): | 4.610 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | DaMATTA, F. M.; RAHN, E.; LADERACH, P.; GHINI, R.; RAMALHO, J. C. Why could the coffee crop endure climate change and global warming to a greater extent than previously estimated? Climatic Change, v. 152, n. 1. p. 167-178, 2019. |
| Parceria/partes: | UFV - Universidade Federal de Viçosa, Universidade Nova de Lisboa, CIAT - Centro Internacional de Agricultura Tropical, Swiss Federal Institute of Technology (ETH Zurich), Universidade de Lisboa (ULISBOA), |
| Peso: | A1 |
| Conteúdo: | Abstract: Coffee, one of the most heavily globally traded agricultural commodities, has been categorized as a highly sensitive plant species to progressive climatic change. Here, we summarize recent insights on the coffee plant’s physiological performance at elevated atmospheric carbon dioxide concentration [CO2]. We specifically (i) provide new data of crop yields obtained under free-air CO2 enrichment conditions, (ii) discuss predictions on the future of the coffee crop as based on rising temperature and (iii) emphasize the role of [CO2] as a key player for mitigating harmful effects of supra-optimal temperatures on coffee physiology and bean quality. We conclude that the effects of global warming on the climatic suitability of coffee may be lower than previously assumed. We highlight perspectives and priorities for further research to improve our understanding on how the coffee plant will respond to present and progressive climate change. |
| Observaçao: | ISSN: 0165-0009 (print), 1573-1480 (online). DOI: https://doi.org/10.1007/s10584-018-2346-4 (ID_PAT: 22970) |
| Palavras-chave: | Coffea spp.; Coffee; Crop yield; Elevated [CO2]; Global warming; Heat; Photosynthesis. |
| Valor JCR (2017): | 3.537 |
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| Plano de Ação: | ..... |
| Descrição: | BONONI, L.; TAKETANI, R. G.; SOUZA, D. T.; MOITINHO, M. A.; KAVAMURA, V. N.; MELO, I. S. de Higher phylogenetic diversity prevents loss of functional diversity caused by successive drying and rewetting cycles. Antonie van Leeuwenhoek, v. 111, n. 7, p. 1033-1045, 2018. |
| Parceria/partes: | ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", |
| Peso: | A2 |
| Conteúdo: | Abstract: Microbial communities regulate nutrient cycling in soil, thus the impact of climate change on the structure and function of these communities can cause an imbalance of nutrients in the environment. Structural and functional changes of soil bacterial communities in two contrasting biomes in Brazil, the Atlantic Forest and the Tropical Dry Forest (Caatinga), were studied by simulating, in microcosms, rainfall and drought events. Soil samples were collected in three Brazilian states: Bahia, Pernambuco and São Paulo, in a total of four sampling sites. Analysis of 16S rRNA amplicon libraries revealed changes in microbial communities after three drying-rewetting cycles (60–30% water holding capacity). Alpha diversity indexes were obtained for bacterial communities, as well as the functional diversity index (Shannon) based on the activity of the following enzymes: acid and alkaline phosphatase, arylsulfatase, dehydrogenase, cellulase, amylase, urease and phytase. In general, the soils of Caatinga showed a decrease in the diversity indexes studied, conversely, however, the soils of Atlantic Forest were found to be more resistant during the drying-rewetting cycles. Functional diversity was significantly different for the two biomes, with a decrease in Caatinga soils, while Atlantic Forest samples demonstrated a greater stability of enzymatic activity. Further, the Atlantic Forest samples showed more resistance when compared to samples from Caatinga. The results found in this study have confirmed the hypothesis that biomes, independent of climate, when subjected to successive events of drought and rewetting exhibit structural and metabolic changes. |
| Observaçao: | ISSN: 0003-6072 (print), 1572-9699 (online). DOI: https://doi.org/10.1007/s10482-017-1003-7 Pendência: PA SEG associado. (ID_PAT: 21575) |
| Palavras-chave: | Bacterial communities; Proteobacteria; Actinobacteri;a Climate change; Semiarid. |
| Valor JCR (2017): | 1.588 |
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| Plano de Ação: | ..... |
| Descrição: | SILVA, T. R.; DUARTE, A. W. F.; PASSARINI, M. R. Z.; RUIZ, A. L. T. G.; FRANCO, C. H.; MORAES, C. B.; MELO, I. S. de; RODRIGUES, R. A.; FANTINATTI-GARBOGGINI, F.; OLIVEIRA, V. M. Bacteria from Antarctic environments: diversity and detection of antimicrobial, antiproliferative, and antiparasitic activities. Polar Biology, v. 41, n. 7, p. 1505-1519, 2018. Publisher Correction to: Bacteria from Antarctic environments: diversity and detection of antimicrobial, antiproliferative, and antiparasitic activities. Polar Biology, v. 41, n. 7, p. 1521, 2018. https://doi.org/10.1007/s00300-018-2322-5 |
| Parceria/partes: | UNICAMP - Universidade Estadual de Campinas, CNPEM - Centro Nacional de Pesquisa em Energia e Materias, UFAL - Universidade Federal de Alagoas, UNILA - Universidade Federal da Integração Latino-Americana, |
| Peso: | A2 |
| Conteúdo: | Abstract: Microorganisms dominate most of Antarctic ecosystems and play a crucial role in their functioning. They are called extremophilic microorganisms with unique and versatile metabolic properties with possible biotechnological applications in several areas. The aim of the present study was to identify psychrotolerant microorganisms from Antarctic continent samples and to screen them for antimicrobial effects. Phylogenetic analyses revealed that most isolates were closely related to recognized species, including those recovered previously from Antarctica, which belonged to the major phyla Firmicutes, Bacteroidetes, Actinobacteria, and Proteobacteria (classes Alpha, Beta, and Gammaproteobacteria). A total of 326 bacterial isolates, distributed in 39 different genera, were recovered and identified based on sequencing of the 16S rRNA gene. The main representative genera were Arthrobacter, Psychrobacter, Pseudoalteromonas, and Rhodococcus. Antimicrobial screening revealed fifteen isolates capable of inhibiting growth of at least one of the indicator strains: Escherichia coli, Micrococcus luteus, Staphylococcus aureus, Bacillus subtilis, and Candida albicans. One psychrotolerant bacterium, Pseudomonas sp. isolate 99, showed a broad antimicrobial range, in addition to antiproliferative and antiparasitic activity. Overall, the small number of antibiotic-producing isolates obtained and the weakness of their inhibition halos corroborated previous findings suggesting that cold-loving bacteria from Antarctica are not as good as their relatives from mesophilic environments for antimicrobial prospecting. Nonetheless, antiproliferative and antiparasitic results observed are promising and suggest that there is an untapped wealth in Antarctic environments for bioprospecting compounds with pharmaceutical potential application. |
| Observaçao: | ISSN: 0722-4060 (print), 1432-2056 (online). DOI: https://doi.org/10.1007/s00300-018-2300-y (original article). Pendência: PA SEG associado. (ID_PAT: 21782) |
| Palavras-chave: | Bioprospecting; Bioactive compounds; Cold environments; 16S rRNA genes; Pseudomonas. |
| Valor JCR (2017): | 1.954 |
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| Plano de Ação: | ..... |
| Descrição: | GENUÁRIO, D. B.; SOUZA, W. R.; MONTEIRO, R. T. R.; SANT´ANNA, C. L.; MELO, I. S. de Amazoninema gen. nov., (Synechococcales, Pseudanabaenaceae) a novel cyanobacteria genus from Brazilian Amazonian rivers. International Journal of Systematic and Evolutionary Microbiology, v. 68, n. 7, p. 2249-2257, 2018. |
| Parceria/partes: | Instituto de Botânica, São Paulo/SP, FAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo, CENA/USP - Centro de Energia Nuclear na Agricultura, |
| Peso: | A2 |
| Conteúdo: | Abstract: The genus Leptolyngbya includes morphotypes with thin cells and simple morphology, and is one of the most common cyanobacterial genera found in a wide range of environments. In many cases, however, the morphotypes assigned to this genus do not share a common ancestor based on 16S rRNA gene phylogeny, which has led to the description of novel genera, such as Nodosilinea, Oculatella, Pantanalinema , Alkalinema , Thermoleptolyngbya, Onodrimia, Timaviella and Toxifilum. Thus, four novel isolates, with a comparable morphology to Leptolyngbya , were recovered from the Amazon and Solimões rivers. The novel 16S rRNA gene sequences obtained from these strains were placed together as a new and distinct phylogenetic lineage that is more closely related to the clusters embracing the genera Nodosilinea, Haloleptolyngbya and Halomicronema than to the genus Leptolyngbya . Additionally, these novel 16S rRNA gene sequences showed similarity values lower than 95 % compared with those from the most phylogenetic related groups and/or established genera. Altogether, these results supported the erection of a novel genus, named Amazoninema, to accommodate the novel isolates. Likewise, a comparison of their 16S rRNA gene sequences revealed similarities higher than 99.8 %, indicating that they belong to a single species, which was corroborated by analysing their 16S–23S internal transcribed spacer regions and unique Box-B helix pattern. Few studies have been undertaken to uncover the cultured diversity of cyanobacteria from Amazonia, and to our knowledge, this is the first cyanobacteria genus erected, considering morphotypes isolated exclusively from Brazilian Amazonian rivers. |
| Observaçao: | ISSN: 1466-5026 (print), 1466-5034 (online). DOI: 10.1099/ijsem.0.002821 Pendência: código SEG associado. (ID_PAT: 21985) |
| Palavras-chave: | Nodosilinea, Brazil, Halomicronema, 16S rRNA gene, ITS secondary structures, Leptolyngbya. |
| Valor JCR (2017): | 1.932 |
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| Plano de Ação: | ..... |
| Descrição: | RODRIGUES, J. P.; PETI, A. P. F.; FIGUEIRÓ, F. S.; ROCHA, I. S.; ACQUARO JUNIOR, V. R.; SILVA, T. G.; MELO, I. S. de; BEHLAU; MORAES, L. A. B. Bioguided isolation, characterization and media optimization for production of Lysolipins by actinomycete as antimicrobial compound against Xanthomonas citri subsp. citri. Molecular Biology Reports, v. 45, n. 6, p. 2455–2467, 2018. |
| Parceria/partes: | USP - Universidade de São Paulo, Fundecitrus - Fundo de Defesa da Citricultura, |
| Peso: | A2 |
| Conteúdo: | Abstract: Citrus Canker disease is one of the most important disease in citrus production worldwide caused by gram-negative bacterial pathogen Xanthomonas citri subsp. citri, leading to great economic losses. Currently, a spray of copper-based bactericides is the primary measure for citrus canker management. However, these measures can lead to the contamination of soil by metal contamination, but also the development of copper-resistant Xanthomonas populations. Considering the need to discovery new alternatives to control the citrus canker disease, actinomycetes isolated from the Brazilian Caatinga biome and their crude extracts were tested against different strains of Xanthomonas citri subsp. citri. Streptomyces sp. Caat 1-54 crude extract showed the highest antibiotic activity against Xcc. The crude extract dereplication was performed by LC–MS/MS. Through bioassay-guided fractionation strategy, the antimicrobial activity was assigned to Lysolipins, showing a MIC around 0.4–0.8 µg/mL. Growth media optimization using statistical experimental design increased the Lysolipins production in three-fold production. The preventive and curative effects of the optimized crude extract obtained by experimental design of Caat-1-54 against citrus canker were evaluated in potted ‘Pera’ sweet orange nursery trees. Caat 1-54 extract was effective in preventing new infections by Xcc on leaves but was not able to reduce Xcc population in pre-established citrus canker lesions. Streptomyces sp. Caat 1-54 extract is a promising, environmentally-friendly source of antimicrobial compound to protect citrus trees against citrus canker. |
| Observaçao: | ISSN: 0301-4851 (Print), 1573-4978 (Online). DOI: https://doi.org/10.1007/s11033-018-4411-5 Pendência: código SEG associado. (ID_PAT: 22460) |
| Palavras-chave: | Actinobacteria; Citrus canker control; Secondary metabolites; Antimicrobial agent; Experimental design. |
| Valor JCR (2017): | 1.889 |
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| Plano de Ação: | ..... |
| Descrição: | BRANDI, F.; HECK, D. W.; FERREIRA, T. C.; BETTIOL, W. Commercial formulations of Bacillus spp. for sugarcane pineapple disease control and growth promotion. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 12, p. 1311-1319, dez. 2018. |
| Parceria/partes: | UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, |
| Peso: | A2 |
| Conteúdo: | Abstract: The objective of this work was to evaluate the commercial formulations of Bacillus subtilis QST-713 and Bacillus pumilus QST-2808 on mycelial growth inhibition of Thielaviopsis paradoxa, for the control of the pineapple disease and growth promotion in sugarcane. The inhibition of mycelial growth was evaluated in paired culture tests. Bacillus isolates were transferred to Petri dishes 48 hours before the pathogen, and the zone of inhibition was determined. The direct effect of the autoclaved commercial formulations at 0, 0.001, 0.01, 0.1, 1.0, and 10.0% on the inhibition of pathogen mycelial growth was evaluated. Bacillus spp. potential in controlling the disease and promoting plant growth was evaluated in assays on plant development and disease severity, both under controlled conditions and in the field. Bacillus isolates inhibited pathogen mycelial growth; however, the isolates did not control the disease effectively in the growth chamber and in the field. In the field assay without infestation by the pathogen, all treatments with biocontrol agents and fungicide increased the yield of cane stalks and sugar per hectare, compared with the control. In the assay with infestation by the pathogen, the B. pumilus-based product (2.0 L ha-1) and fungicide differed from the control only for the variable number of tillers.
Resumo: O objetivo deste trabalho foi avaliar formulações comerciais de Bacillus subtilis QST-713 e Bacillus pumilus QST-2808 na inibição do crescimento micelial de Thielaviopsis paradoxa, para o controle da podridão-abacaxi e a promoção de crescimento em cana-de-açúcar. A inibição do crescimento micelial foi avaliada em cultura pareada. Os isolados de Bacillus foram transferidos para placas de Petri 48 horas antes do patógeno, e o halo de inibição foi determinado. O efeito direto das formulações comerciais autoclavadas a 0, 0,001, 0,01, 0,1, 1,0 e 10,0% foi avaliado quanto à inibição do crescimento micelial do patógeno. O potencial de Bacillus spp. em controlar a doença e promover o crescimento das plantas foi avaliado em ensaios quanto ao desenvolvimento das plantas e à severidade da doença, em condições controladas e em campo. Os isolados de Bacillus inibiram o crescimento micelial do patógeno; no entanto, não apresentaram controle efetivo da doença em câmara de crescimento e em campo. No ensaio de campo, sem infestação do patógeno, todos os tratamentos com agentes de biocontrole e fungicida aumentaram a produção de colmos e açúcar por hectare, em comparação à testemunha. No ensaio com infestação pelo patógeno, o produto à base de B. pumilus (2.0 L ha-1) e o fungicida diferiram da testemunha somente quanto à variável número de perfilhos. |
| Observaçao: | ISSN: 0100-204X (Print), 1678-3921 (Online). DOI: http://dx.doi.org/10.1590/s0100-204x2018001200003 Título em português: Formulações comerciais de Bacillus spp. para o controle da podridão-abacaxi e a promoção de crescimento em cana-de-açúcar. Pendência: Código SEG associado. (ID_PAT: 22976) |
| Palavras-chave: | Saccharum; Thielaviopsis paradoxa; Alternative control; Biological control.
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| Valor JCR (2017): | 0.546 |
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| Plano de Ação: | 01.11.07.001.05.06 |
| Descrição: | SIMIONI, F. J.; BUSCHINELLI, C. C. de A.; DEBONI, T. L.; PASSOS, B. M. dos Cadeia produtiva de energia de biomassa florestal: o caso da lenha de eucalipto no polo produtivo de Itapeva - SP. Ciência Florestal, Santa Maria, v. 28, n. 1, p. 310-323, jan./mar. 2018. |
| Parceria/partes: | UDESC - Universidade do Estado de Santa Catarina, Biovita Consultoria Ambiental Ltda., |
| Peso: | A2 |
| Conteúdo: | Resumo: A biomassa de origem florestal é uma importante fonte de energia na matriz energética brasileira em que o eucalipto representa a principal espécie para o suprimento da demanda de lenha. Por essa razão, diagnosticar os fatores críticos que limitam o desempenho competitivo da cadeia produtiva da lenha de eucalipto foi o objetivo do trabalho. A área de estudo escolhida (selecionada) foi o polo produtivo de Itapeva - SP e a pesquisa de campo foi realizada no segundo semestre de 2013, utilizando a análise de cadeias produtivas como marco teórico conceitual. Como instrumento para a coleta dos dados, utilizou-se o questionário semiestruturado, um roteiro de entrevistas e painéis envolvendo questões relacionadas à cadeia produtiva da lenha de eucalipto, contemplando 23 diferentes agentes da cadeia. A cadeia analisada demonstrou estruturação, porém, tem enfrentado um revés produtivo decorrente de uma conjuntura macroeconômica que resultou em queda da demanda de produtos de origem florestal, e entraves locais de significativa importância, que precisam ser contornados para aumentar o desempenho da cadeia.
Abstract: The biomass from forests is an important source of energy, in the Brazilian energy matrix, being the eucalyptus the main species to the supplying of firewood demand. Therefore, diagnosing the critical factors that limited the competitive performance of the production of the eucalyptus wood chain was the goal of this work. The study area was the productive pole of Itapeva/SP state and the field survey was conducted in the second half of 2013, using the analysis of supply chains as a conceptual theoretical framework. As a tool for data collection, we used a semi-structured questionnaire, a script for interviews and conducting panels, involving issues related to the production chain of the eucalyptus wood, covering 23 different agents involved in it. The analyzed chain showed to be structured, even facing a production setback, due to a macroeconomic environment that resulted in a drop in the demand for forest products. These products face significant important local barriers, which need to be defeated to increase the chain performance. |
| Observaçao: | ISSN: 0103-9954 (impresso), 1980-5098 (online). Acessível em https://periodicos.ufsm.br/cienciaflorestal/issue/view/1246/showToc Objeto de entrega associado, no SEG/Ideare, ao Plano de Ação: Diagnóstico da cadeia produtiva de florestas com finalidades energéticas, código 01.11.07.001.05.02. (ID_PAT: 21800) |
| Palavras-chave: | Biomassa; Bioenergia; Mercado florestal.
Biomass; Bioenergy; Forestry market. |
| Valor JCR (2017): | 0.436 |
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| Plano de Ação: | 01.17.02.001.04.07 |
| Descrição: | BICUDO, A. J. A.; ARAUJO, T. A. T.; BRAGA, L. G. T.; TONINI, W. C. T.; HISANO, H. Apparent digestibility of conventional and alternative feedstuffs by hybrid tambacu juveniles. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 90, n. 1, p. 471-478, 2018. |
| Parceria/partes: | UESC - Universidade Estadual de Santa Cruz, UFRPE - Universidade Federal Rural de Pernambuco , UFPR - Universidade Federal do Paraná, UNEB - Universidade do Estado da Bahia, |
| Peso: | A2 |
| Conteúdo: | Abstract: The apparent digestibility coefficients (ADC’s) of dry matter (DM), crude protein (CP), and gross energy (GE) of conventional feedstuffs (cottonseed meal-CSM, soybean meal-SBM, wheat bran-WHB, corn-COR) and regional alternative feedstuffs (common bean residue meal-CBR, mesquite meal-MES, pasta by-product meal-PBM) were determined for hybrid juvenile tambacu Colossoma macropomum × Piaractus mesopotamicus. The apparent DM and GE digestibility of feedstuffs decreased (p<0.05) as fiber content of the ingredients increased. No differences (p>0.05) were found among ADC’s of PBM and COR. The lowest CP ADC among energy sources was observed in MES; the lowest CP ADC among plant protein sources was observed in CBR. Information about the ADC’s of conventional and alternative feedstuffs for tambacu is essential to formulate low-cost diets and can contribute to regional development. |
| Observaçao: | ISSN: 0001-3765 (print), 1678-2690 (online). DOI: http://dx.doi.org/10.1590/0001-3765201720150509 (ID_PAT: 21820) |
| Palavras-chave: | Characin; Fish nutrition; Hybrid fish; Nutritional value. |
| Valor JCR (2017): | 0.956 |
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| Plano de Ação: | 02.13.12.003.00.04 |
| Descrição: | IWANICKI, N. S.; FERREIRA, B. de O.; MASCARIN, G. M.; DELALIBERA JUNIOR, I. Modified Adamek’s medium renders high yields of Metarhizium robertsii blastospores that are desiccation tolerant and infective to cattle-tick larvae. Fungal Biology, v. 122, n. 9. p. 883-890, 2018. |
| Parceria/partes: | ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", |
| Peso: | A2 |
| Conteúdo: | Abstract: Blastospores are yeast-like cells produced by entomopathogenic fungi that are infective to arthropods. The economical feasible production of blastospores of the insect killing fungus Metarhizium spp. must be optimized to increase yields. Moreover, stabilization process is imperative for blastospore formulation as a final product. In this sense, our goal was to increase blastospore production of two Metarhizium isolates (ESALQ1426 and ESALQ4676) in submerged liquid cultures. A modified Adamek\\\\\\\'s medium was supplemented with increased glucose concentrations and the fermentation time was accelerated by using a blastospore pre-culture as inoculum. Virulence of air-dried stable blastospores was compared with conidia toward larvae of the cattle tick, Rhipicephalus microplus. Our results revealed that blastospore production of Metarhizium is isolate- and species-dependent. Glucose-enriched cultures (140 g glucose/L) inoculated with pre-cultures improved yields with optimal growth conditions attained for Metarhizium robertsii ESALQ1426 that rendered as high as 5.9 × 108 blastospores/mL within 2 d. Resultant air-dried blastospores of ESALQ1426 were firstly proved to infect and quickly kill cattle tick larvae with comparable efficiency to conidia. Altogether, we argue that both osmotic pressure, induced by high glucose titers, and isolate selection are critical to produce high yields of blastospores that hold promise to control cattle-tick larvae. |
| Observaçao: | ISSN: 1878-6146. DOI: https://doi.org/10.1016/j.funbio.2018.05.004 (ID_PAT: 21973) |
| Palavras-chave: | Fungal entomopathogen; Hypocreales; Liquid culture; Pathogenicity; Rhipicephalus microplus. |
| Valor JCR (2017): | 2.571 |
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| Plano de Ação: | 02.14.08.001.00.04 |
| Descrição: | LIMA, M. A. de; PAZIANOTTO, R. A. A. ; VILLELA, O. V.; PARAÍBA, L. C. Diurnal variation of methane emission from a paddy field in Brazilian Southeast. Ciência Rural, Santa Maria, v. 48, n. 4, e20170054, 2018. |
| Parceria/partes: | APTA - Agência Paulista de Tecnologia dos Agronegócios, |
| Peso: | A2 |
| Conteúdo: | Abstract: This study aimed to investigate the diurnal variation of methane (CH4) emission in a flooded-irrigated rice field at different stages of the plant development under tropical climate in three growing seasons, in order to determine the most appropriate time for gas sampling in the Brazilian Southeast region. It aimed also to verify correlations between CH4 flux and air, water and soil temperatures, and solar radiation. The CH4 emissions were measured every 3-hour interval on specific days in different development stages of the flooded rice in the Experiment Station of the Agência Paulista de Tecnologia dos Agronegócios (APTA), Pólo Regional Vale do Paraíba, at Pindamonhangaba, State of São Paulo (22°55’ S, 45°30’ W), Brazil. Different CH4 emission rates were observed among the plant growth stages and also among the growing seasons. The CH4 emission showed high correlation with the soil temperature at 2cm depth. At this depth, the CH4 emission activation energy in response to soil temperature was higher in the stage R2. Emission peaks were observed at afternoon, while lower fluxes were recorded at the early morning. The most appropriate local time for gas sampling was estimated at 12:11:15a.m.±01:14:16 and 09:05:49p.m.±01:29:04.
Resumo: Este estudo teve como objetivo investigar a variação diurna de emissões de metano (CH4) em uma lavoura de arroz irrigado por inundação em diferentes estágios de desenvolvimento de plantas de arroz irrigado, sob clima tropical, em três estações de crescimento, para determinar o período de tempo mais apropriado à amostragem de gás na região Sudeste do Brasil. O trabalho objetivou também verificar correlações entre o fluxo de CH4 e as temperaturas do ar, da água e do solo e a radiação solar. As emissões diurnas de CH4 foram medidas a cada intervalo de três (3) horas em dias específicos em diferentes estágios de desenvolvimento da planta de arroz inundado na Estação Experimental da Agência Paulista de Tecnologia dos Agronegócios (APTA), Pólo Regional Vale do Paraíba, em Pindamonhangaba, Estado de São Paulo (22°55’ S, 45°30’ W), Brasil. Diferentes taxas de emissão foram observadas entre os estágios de desenvolvimento da planta avaliados e também entre as estações de cultivo. A emissão de CH4 mostrou alta correlação com a temperatura do solo a 2cm de profundidade. Nesta profundidade, a energia de ativação da emissão de CH4 em resposta à temperatura do solo foi maior no estágio R2. Os picos de emissão foram observados no período da tarde, enquanto que menores fluxos foram registrados no início da manhã. O horário mais apropriado para amostragem de gás foi estimado em 12:11:15a.m.±01:14:16 and 09:05:49p.m.±01:29:04. |
| Observaçao: | ISSN: 0103-8478 (print), 1678-4596 (online). DOI: http://dx.doi.org/10.1590/0103-8478cr20170054 (ID_PAT: 21825) |
| Palavras-chave: | Flooded rice; Methane flux; Plant development stage; Activation energy.
Arroz irrigado por inundação; Fluxo de metano; Estágio de desenvolvimento da planta; Energia de ativação. |
| Valor JCR (2017): | 0.525 |
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| Plano de Ação: | 02.14.11.004.00.05 |
| Descrição: | BARBEDO, J. G. A.; KOENIGKAN, L. V.; HALFELD-VIEIRA, B. A.; COSTA, R. V.; NECHET, K. de L.; GODOY, C. V.; LOBO JUNIOR, M.; PATRICIO, F. R. A.; TALAMINI, V.; CHITARRA, L. G.; OLIVEIRA, S. A. S.; TERAO, D. Annotated plant pathology databases for image-based detection and recognition of diseases. Revista IEEE América Latina, v. 16, n. 6, p. 1749-1757, jun. 2018. |
| Parceria/partes: | **(DENOMINAÇÃO ALTERADA) Embrapa Informática Agropecuária (CNPTIA), Embrapa Algodão (CNPA), Embrapa Amazônia Oriental (CPATU), Embrapa Arroz e Feijão (CNPAF), Embrapa Mandioca e Fruticultura (CNPMF), Embrapa Milho e Sorgo (CNPMS), Embrapa Soja (CNPSO), Embrapa Tabuleiros Costeiros (CPATC), Embrapa Trigo (CNPT), Instituto Biológico, |
| Peso: | A2 |
| Conteúdo: | Abstract: Over the last few years, considerable effort has been spent by Embrapa in the construction of a plant disease database representative enough for the development of effective methods for automatic plant disease detection and recognition. In October of 2016, this database, called PDDB, had 2326 images of 171 diseases and other disorders affecting 21 plant species. PDDB size, although considerable, is not enough to allow the use of powerful techniques such as deep learning. In order to increase its size, each image was subdivided according to certain criteria, increasing the number of images to 46,513. Both the original (PDDB) and subdivided (XDB) databases are now being made freely available for academic research purposes, thus supporting new studies and contributing to speed up the advances in the area. Both collections are expected to grow continuously in order to expand their reach. PDDB and XDB can be accessed in the link https://www.digipathos-rep.cnptia.embrapa.br/. |
| Observaçao: | Demais autores: ISHIDA, A. K. N. (12º); FERNANDES, J. M. C. (13º); SANTOS, T. T. (14º); CAVALCANTI, F. R. (15º); ...; ANGELOTTI, F. (17º). Demais parcerias: Embrapa Uva e Vinho (CNPUV), Embrapa Semi-Árido (CPATSA). ISSN: 1548-0992. DOI: 10.1109/TLA.2018.8444395 Título do artigo em português: Bases de dados fitopatológicas para detecção e reconhecimento de doenças baseados em imagens. Nota (Ainfo): O título da revista foi grafado no artigo como IEEE LATIN AMERICA TRANSACTIONS, mas o registro de título do periódico é REVISTA IEEE AMÉRICA LATINA. (ID_PAT: 22109) |
| Palavras-chave: | Plant pathology; Database; Deep learning; Image processing.
Aprendizagem profunda; Banco de dados; Deep learning; Imagem em processamento; Patologia vegetal; Processamento de imagem. |
| Valor JCR (2017): | 0.502 |
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| Plano de Ação: | 02.16.05.020.00.06 |
| Descrição: | CARVALHO, C. G. P.; SILVA, M. F. da; MANDARINO, J. M. G.; GRUNVALD, A. K.; RAMOS, N. P.; RIBEIRO, J. L.; GODINHO, V. de P. C. Fatty acid profiles in sunflower grains during storage in different environments. Journal of the American Oil Chemists’ Society, v. 95, n. 1, p. 61-67, 2018. |
| Parceria/partes: | Embrapa Meio Norte (CPAMN), Embrapa Rondônia (CPAF-Rondônia), Embrapa Soja (CNPSO), UniFil - Centro Universitário Filadélfia, |
| Peso: | A2 |
| Conteúdo: | Abstract: This study aimed to evaluate the fatty acid profiles of sunflower oil extracted from hybrid grains produced and stored in different environments. The trials were conducted in Teresina (Piauí), Vilhena (Rondônia), and Jaguariúna (São Paulo) in randomized complete block design with 4 replicates. After harvesting, grains from 1 high oleic and 3 traditional hybrids were packed in kraft paper bags and stored in a covered shed and in a cold chamber up to 12 months. The fatty acid profiles were determined by gas chromatography after 0, 4, 8, and 12 months of storage. Analyses of variance were conducted in a split‐plot design, with hybrids being considered as whole plots and storage times as subplots. Tukey\\\\\\\'s test was performed to compare hybrids and regression analyses for storage times. The initial fatty acid profile of the grains of the same hybrid varied depending on the production location. The grain storage of high oleic and traditional sunflower hybrids during 12 months in covered shed and in cold chamber resulted in little changes in oil fatty acid profiles, regardless of the initial contents. These changes occurred only for linoleic and palmitic acids. |
| Observaçao: | ISSN: 0003-021X (print), 1558-9331 (online). DOI: 10.1002/aocs.12007 (ID_PAT: 22060) |
| Palavras-chave: | Helianthus annuus; Oleic acid; Linoleic acid; Palmitic acid; Stearic acid. |
| Valor JCR (2017): | 1.601 |
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| Plano de Ação: | 03.13.12.009.00.05 |
| Descrição: | CARVALHO, A. L. de A.; REZENDE, L. C. de; COSTA, L. B.; HALFELD-VIEIRA, B. A.; PINTO, Z. V.; MORANDI, M. A. B.; MEDEIROS, F. H. V. de; BETTIOL, W. Optimizing the mass production of Clonostachys rosea by liquid-state fermentation. Biological Control, v. 118, p. 16-25, 2018. |
| Parceria/partes: | UFLA - Universidade Federal de Lavras, UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, |
| Peso: | A2 |
| Conteúdo: | Abstract: Optimization of the culture medium and the entire mass production process for various fungi in liquid medium has been studied. However, the technology is not well developed for Clonostachys rosea, a biocontrol agent against various plant pathogens due to its antagonistic capacity to act as a hyperparasite, compete for nutrients and space, and induce plant resistance to pathogens. In this study, we aimed to optimize the culture medium and to standardize parameters that may interfere with the production of C. rosea conidia in a liquid-state fermentation system. Culturing was performed in 250-mL Erlenmeyer flasks shaken for 7 days, followed by planned experimental methodology to reduce the number of analyses and consumable costs. Benchtop bioreactor tests with the optimized medium were performed. Glucose and sucrose were evaluated as carbon sources. Initially, the effects of temperature, pH, photoperiod, carbon:nitrogen ratio and water activity on inoculum production were evaluated, with the pH and photoperiod being factors that contributed to conidial production. Optimization of the fermentation conditions was performed using a central composite rotational design (CCD) with a wider range of pH values and photoperiods. The remaining variables were fixed according to the previous assay. Colony-forming unit (CFUs), biomass production and conidial viability were evaluated, and glucose was used as a carbon source to enhance conidial production. The optimized conditions that resulted in a maximum yield of conidia (1.78 × 107 conidia mL−1), dried biomass (0.558 g) and CFUs (5.15 × 106 CFUs mL−1) were a pH value of 4 and a photoperiod of 12 h. |
| Observaçao: | ISSN: 1049-9644. DOI: https://doi.org/10.1016/j.biocontrol.2017.11.014 (ID_PAT: 21579) |
| Palavras-chave: | Clonostachys rosea; Mass production; Liquid media; Bioreactor; Fungal production. |
| Valor JCR (2017): | 2.112 |
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| Plano de Ação: | 03.16.04.008.00.03 |
| Descrição: | MELO, M. P. de; MATOS, K. S.; MOREIRA, S. I.; SILVA, F. F.; CONCEIÇÃO, G. H.; NECHET, K. de L.; HALFELD-VIEIRA, B. A.; BESERRA JUNIOR, J. E. A.; VENTURA, J. A.; COSTA, H.; FURTADO, E. L.; ALVES, E. Two new Ceratobasidium species causing white thread blight on tropical plants in Brazil. Tropical Plant Pathology, v. 43, n. 6, p. 559-571, 2018. |
| Parceria/partes: | INCAPER - Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural, UFLA - Universidade Federal de Lavras, UFOPA - Universidade Federal do Oeste do Pará, UFPI - Universidade Federal do Piauí, Teresina/PI, UFRR - Universidade Federal de Roraima, UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, |
| Peso: | A2 |
| Conteúdo: | Abstract: White thread blight is one of the most common diseases affecting several tree species that grow in warm and humid regions. The typical symptoms of this disease include blighted leaves hanging by a white thread of fungal hyphae. Leaf samples exhibiting white thread blight symptoms were collected from neem (Azadirachta indica A. Juss) and Brazilian cherry pitanga (Eugenia uniflora L.) plants in Northeastern Brazil, and from Indian green-tea (Camellia sinensis (L.) O. Kuntze), coffee (Coffea arabica L.), and persimmon (Diospyros kaki L.) in agricultural areas neighboring the Atlantic forest in Southeastern Brazil. Fungal isolates were obtained indirectly from leaf fragments or directly by transferring mycelia and sclerotia to culture medium. Bright field and scanning electron microscopy images revealed the association of Rhizoctonia-like hyphae and basidiospores with the infected leaves. In pathogenicity tests, Rhizoctonia-like fungal isolates induced leaf necrosis on their hosts, and the pathogens were re-isolated from inoculated plants. Phylogenetic analyses based on sequences of the ITS rRNA region indicated the occurrence of Ceratobasidium lineages distinct from previously reported Ceratobasidium species. Our study leads to the description of two new species of Ceratobasidium: the fungal isolates from A. indica, C. sinensis, and E. uniflora were classified as Ceratobasidium niltonsouzanum sp. nov., and those obtained from C. arabica and D. kaki as Ceratobasidium chavesanum sp. nov. |
| Observaçao: | Demais autores: CERESINI, P. C. (13º). ISSN: 1982-5676 (print), 1983-2052 (online). DOI: https://doi.org/10.1007/s40858-018-0237-x (ID_PAT: 22073) |
| Palavras-chave: | Binucleate Rhizoctonia; Phylogenetic analysis. |
| Valor JCR (2017): | 0.784 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | MASCARIN, G. M.; KOBORI, N. N.; JACKSON, M. A.; DUNLAP, C. A.; DELALIBERA JUNIOR, I. Nitrogen sources affect productivity, desiccation tolerance and storage stability of Beauveria bassiana blastospores. Journal of Applied Microbiology, v. 124, n. 3, p. 810-820, 2018. |
| Parceria/partes: | USDA - United States Department of Agriculture, |
| Peso: | A2 |
| Conteúdo: | Abstract:>br>
Aims: Nitrogen is a critical element in industrial fermentation media. This study investigated the influence of various nitrogen sources on blastospore production, desiccation tolerance and storage stability using two strains of the cosmopolitan insect‐pathogenic fungus Beauveria bassiana. Methods and Results: Complex organic sources of nitrogen such as soy flour, autolysed yeast and cottonseed flour induced great numbers of blastospores after 2–3 days of fermentation, which also survived drying and remained viable (32–56% survival) after 9 months storage at 4°C, although variations were found between strains. Nitrogen availability in the form of free amino acids directly influenced blastospore production and resistance to desiccation. Increasing glucose and nitrogen concentrations up to 120 and 30 g l−1, respectively, did not improve blastospore production but enhanced desiccation tolerance. Cell viability after drying and upon fast‐rehydration was increased when ≥25 g acid‐hydrolysed casein per litre was supplemented in the liquid culture medium. Conclusions: These findings indicate that low‐cost complex nitrogen compounds are suitable to enhance yeast‐like growth by B. bassiana with good desiccation tolerance and therefore support its further scale‐up production as a mycoinsecticide. Significance and Impact of the Study: Nitrogen is the most expensive nutrient in liquid media composition, but this study underscores the feasibility of using low‐cost nitrogen compounds composed mainly of agro‐industrial by‐products for rapid production of desiccation‐tolerant B. bassiana blastospores by liquid culture fermentation. |
| Observaçao: | ISSN: 1364-5072 (print), 1365-2672 (online). DOI: https://doi.org/10.1111/jam.13694 Publicação vinculada à Atividade 02.11.07.005.00.03.007 do Plano de Ação 02.11.07.005.00.03.07 (CNPAF), ambos encerrados. (ID_PAT: 21959) |
| Palavras-chave: | Air‐drying; Biocontrol; Dimorphic growth; Entomopathogenic fungi; Liquid fermentation; Storage stability. |
| Valor JCR (2017): | 2.160 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | DUNLAP, C. A.; RAMIREZ, J. L.; MASCARIN, G. M.; LABEDA, D. P. Entomopathogen ID: a curated sequence resource for entomopathogenic fungi. Antonie van Leeuwenhoek, v. 111, n. 6, p. 897–904, 2018. |
| Parceria/partes: | USDA - United States Department of Agriculture, |
| Peso: | A2 |
| Conteúdo: | Abstract: We report the development of a publicly accessible, curated nucleotide sequence database of hypocrealean entomopathogenic fungi. The goal is to provide a platform for users to easily access sequence data from taxonomic reference strains. The database can be used to accurately identify unknown entomopathogenic fungi based on sequence data for a variety of phylogenetically informative loci. The database provides full multi-locus sequence alignment capabilities. The initial release contains data compiled for 525 strains covering the phylogenetic diversity of three important entomopathogenic families: Clavicipitaceae, Cordycipitaceae, and Ophiocordycipitaceae. Furthermore, Entomopathogen ID can be expanded to other fungal clades of insect pathogens, as sequence data becomes available. The database will allow isolate characterisation and evolutionary analyses. We contend that this freely available, web-accessible database will facilitate the broader community to accurately identify fungal entomopathogens, which will allow users to communicate research results more effectively. |
| Observaçao: | ISSN: 0003-6072 (print), 1572-9699 (online). DOI: https://doi.org/10.1007/s10482-017-0988-2 Publicação não vinculada ao SEG/Embrapa (financiamento internacional). (ID_PAT: 21963) |
| Palavras-chave: | Beauveria; Cordyceps; Isaria; Metacordyceps; Metarhizium; MLSA. |
| Valor JCR (2017): | 1.588 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | SANTOS, T. T. M. dos; QUINTELA, E. D.; MASCARIN, G. M.; SANTANA, M. V. Enhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides. Journal of Applied Entomology, v. 142, n. 6, p. 598-609, 2018. |
| Parceria/partes: | Embrapa Arroz e Feijão (CNPAF), UFG - Universidade Federal de Goiás, |
| Peso: | A2 |
| Conteúdo: | The aim of this current study was to evaluate the mortality of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs by the combination between the entomopathogenic fungus Isaria javanica (Friedrichs & Bally) Samson & Hywel‐Jones and synthetic chemical insecticides. The bioefficacy of I. javanica and the insect growth regulators named spiromesifen and buprofezin was tested alone and in combination against B. tabaci nymphs under screenhouse conditions. The in vitro compatibility between these two control agents was previously assessed under laboratory conditions. The sublethal concentration (LC25) of these insecticides towards second‐instar nymphs was determined and then mixed with the fungal treatments to investigate the type of interaction. All I. javanica isolates at 5 × 107 conidia/ml inflicted nymphal mortality by up to 62.4%. The insecticides did not influence the germination and mycelial growth of the selected I. javanica isolate CG1282. In general, the insecticide–fungus combinations increased nymphal mortalities in comparison with their single counterparts. Combinations with the fungus and buprofezin or spiromesifen augmented nymphal mortality by 10% and 24%, respectively, in comparison with the fungus alone. Additive interaction was found with the combination of the I. javanica CG1282 at 1 × 106 conidia/ml and spiromesifen at 1.56 ppm, and additive and synergistic interactions were achieved with the fungus at 5 × 106 conidia/ml and spiromesifen at 3.12, 6.25 and 12.5 ppm. Additive interactions were also observed from mixtures of fungus at 5 × 106 and buprofezin at 3.12 and 6.25 ppm. Only combinations of I. javanica with spiromesifen reduced to some extent the mycosis on dead nymphs. The joint action of I. javanica with sublethal doses of these insecticides may be a promising tool to assist in the integrated management system for B. tabaci. |
| Observaçao: | ISSN: 0931-2048 (print), 1439-0418 (online). DOI: 10.1111/jen.12504 Publicação vinculada à Atividade 02.11.07.005.00.03.007 do Plano de Ação 02.11.07.005.00.03.07 (CNPAF), ambos encerrados. (ID_PAT: 21964) |
| Palavras-chave: | Buprofezin; Cordycipitaceae; Entomopathogen; Integrated pest management; Spiromesifen; Synergism. |
| Valor JCR (2017): | 1.629 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | MASCARIN, G. M.; PEREIRA-JUNIOR, R. A.; FERNANDES, E. K. K.; QUINTELA, E. D.; DUNLAP, C. A.; ARTHURS, S. P. Phenotype responses to abiotic stresses, asexual reproduction and virulence among isolates of the entomopathogenic fungus Cordyceps javanica (Hypocreales: Cordycipitaceae). Microbiological Research, v. 206, p. 12-22, November 2018. |
| Parceria/partes: | Embrapa Arroz e Feijão (CNPAF), Texas A&M University, UFG - Universidade Federal de Goiás, USDA - United States Department of Agriculture, |
| Peso: | A2 |
| Conteúdo: | Abstract: Selecting entomopathogenic fungal isolates with resilience to environmental stresses, optimal mass production characteristics, and with high virulence to target pests favors the development of mycopesticides. A case in point, Cordyceps (= Isaria) javanica has been extensively investigated for non-chemical control of whiteflies worldwide. We phylogenetically characterized 11 native C. javanica isolates from Northeastern and Central Brazil. These isolates were screened for tolerance to heat-shock, UV-B radiation, osmotic and oxidative stresses, as well as conidial production on cereal grain and insecticidal activity against the whitefly Bemisia tabaci (MEAM 1) in the laboratory. All isolates were pathogenic to whiteflies and significant (3-fold) differences in median lethal concentration were observed among isolates. Furthermore, pronounced differences among isolates were found for stress factors and conidial production. Using principal component analysis, our results highlighted three major clusters formed by isolates (i) resistant to osmotic and oxidative stress, (ii) resilient to UV-B, and (iii) with high virulence, conidial production and heat tolerance. Overall, isolate CG1228 performed best based on multi-stress resistance, mass production and virulence attributes in the laboratory. This study highlights the importance of exploring natural variation in entomopathogenic fungi for selection of appropriate isolates for effective biocontrol of insect pests coupled with mass production characteristics and abiotic stress tolerances. |
| Observaçao: | ISSN: 0944-5013 (print), 1618-0623 (Internet). DOI: https://doi.org/10.1016/j.micres.2018.08.002 Publicação associada ao Plano de Ação/Atividade código SEG 02.11.07.005.00.03.007, de projeto liderado pelo CNPAF, encerrado em 2016. (ID_PAT: 22156) |
| Palavras-chave: | Biological control; UV-B tolerance; Heat-Shock; Oxidative stress; Osmotic stress; Principal component analysis. |
| Valor JCR (2017): | 2.777 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | VENTURA, A. S.; JERÔNIMO, G. T.; FERRI, G. H. B.; PÁDUA, S. B. de; MARTINS, M. L.; ISHIKAWA, M. M. Erythrocyte parameters and condition factor of Gymnotus sp. (Gymnotiformes: Gymnotidae) under growing conditions. Revista Brasileira de Medicina Veterinária, v. 40, n. e20318, 2018. |
| Parceria/partes: | UFSC - Universidade Federal de Santa Catarina, UNICAMP - Universidade Estadual de Campinas, Biovet Vaxxinova, Universidade Nilton Lins, UFMS - Universidade Federal de Mato Grosso do Sul, |
| Peso: | A2 |
| Conteúdo: | Abstract: The aim of this study was to evaluate the hematological variables and body conditions of tuviras, Gymnotus spp under growing conditions. We used 42 fish with an average weight of 42.9 ± 31.8 (g) and average length of 23.7 ± 3.3 (cm) that were from different bait houses. The procedure was anesthesia with clove oil, followed by blood collection by venipuncture flow animals, fish was collected from each 1.5 ml -1, approximately blood. It was determined the concentration of red blood cells, hematocrit percentage, hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC) and body condition (Kn). The results show that the hematological value ranged from 0.880 to 3.940 x 106μl -1, the percentage of hematocrit value ranged from 20.0 to 51.5 %, the hemoglobin concentration from 4.4 to 14.9 g dl -1, the VCM 121.8 250,0fL -1, the MCHC 15.0 to 35.6 dl g -1 and Kn= 1,00 ± 0,041. Hematologic values of Gymnotus spp obtained are within the characteristics presented by other species created in cultive systems. The data evaluated in this work demonstrated that the tuviras kept in the bait houses presented good body conditions and healthness. |
| Observaçao: | ISSN: 0100-2430 (print), 2527-2179 (online). DOI: https://doi.org/10.29374/2527-2179.bjvm020318 Publicação associada ao projeto apropriado código 03.11.99.054.00.00 (Fundect - edital: 14/2009 – Universal. Término: 31/08/2014). (ID_PAT: 22402) |
| Palavras-chave: | Hematologia; Saúde; Casas de iscas; Comercialização. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | SONODA, K. C.; MONTELES, J. S.; FERREIRA, A.; GERHARD, P. Chironomidae from Eastern Amazon: understanding the differences of land-use on functional feeding groups. Journal of Limnology, 77, n. 1, p. 196-202, 2018. |
| Parceria/partes: | UFGD - Universidade Federal da Grande Dourados, Embrapa Territorial (CNPM), |
| Peso: | A2 |
| Conteúdo: | Abstract: Deforestation for agricultural purposes is the most dangerous human action against the conservation of the Brazilian Amazon Forest; its rates reached almost 20% of the original forested area. Many studies have been conducted on Chironomidae systematics and ecology over the Amazon biome, but most concerned the Central Amazon, while little is known about Chironomidae diversity and the effects of land development and agriculture intensification on the aquatic biota from Eastern Brazilian Amazon. The present study analyzed the effects of different land-use and land-cover on Chironomidae assemblages. Land-Use and Land-Cover (LULC) at the riparian zone were assessed from satellite imagery and three categories were defined: Forest, Secondary (Capoeira) and Agriculture. Ten catchments were selected: two for Forest, five for Agriculture and three for Secondary. For each catchment we characterized habitat and sampled insects. We hypothesized that i) the assemblage taxonomic richness will change across different land uses on riparian zones and ii) feeding functionality is a better information than taxonomic resolution to show the importance of LULC upon stream. A total of 20,884 individuals were sampled from the streams, abundance was higher in Agriculture streams. Corynoneura (18.4%), Pentaneura (14.6%) and Rheotanytarus (14.0%) were the most abundant genera in Agriculture streams; Corynoneura (17.8%), Caladomyia (13.6%), Paratanytarsus (13.1%) and Beardius (10.9%) dominated Forest streams; Goeldichironomus (25.9%), Rheotanytarus (17.6%) and Polypedilum (13.2%) dominated Capoeira streams. Regarding FFG, gatherers were the most numeric abundant in Forest (50.3%), followed by filterers (38.7%), predators (6.6%) and shredders (4.2%). In Capoeira, filterers were the main FFG (61.1%), gatherers (27.9%), predators (7.7%) and shredders (3.3%). In Agriculture streams, predators, filterers and gatherers had close numeric participation, 34.9%, 32.4% and 32.2%, respectively. Shredders performed a smaller fraction (0.4%). In Forest and Agriculture, scrapers participation was under 0.2%, while it was absent at Capoeira. Permutation tests showed significant differences among assemblages, based on numerical abundance of genera and on functional feeding group data. Even though, shredders showed a discrete participation in all three LULC, it was statistically significant higher at Forest streams when compared to Agriculture ones. Our study was able to demonstrate taxonomic differences of all LULC analyzed and it also showed the importance in considering the feeding behavior to understand the effects of land-use and land-covers changes. |
| Observaçao: | eISSN: 1723-8633. DOI: 10.4081/jlimnol.2018.1799 Publicação associada ao Plano de Ação código SEG 02.07.06.017.00.04, de projeto liderado pelo CPATU, encerrado em 03/2012. (ID_PAT: 22538) |
| Palavras-chave: | Rainforest; Land-cover; Watershed management; Aquatic insects; Agriculture; Neotropical. |
| Valor JCR (2017): | 1.277 |
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| Plano de Ação: | ..... |
| Descrição: | CANUTO. J. C. Agroecologia: princípios e estratégias para o desenho de agroecossistemas sustentáveis. Redes, Santa Cruz do Sul, v. 22, n. 2, p. 137-151, 2017. |
| Parceria/partes: | |
| Peso: | B1 |
| Conteúdo: | Resumo: O tema do presente escrito refere-se ao debate sobre princípios e estratégias para desenhar sistemas agrícolas sustentáveis. O escrito parte de uma abordagem ampla sobre princípios, descendo ao enfoque mais específico sobre estratégias e finalizando com uma perspectiva em escala micro sobre a prática dos desenhos e as consequências de cada possível opção. O objetivo centra-se em primeiro lugar em colocar ao debate a dialética entre pluralidade e unidade conceitual em Agroecologia. O problema em foco é o de situar mais claramente o que são agroecossistemas sustentáveis e, em decorrência, como conectar princípios e estratégias para viabilizá-los. Em relação ao referencial teórico, utilizamos os Autores clássicos da Agroecologia e alguns artigos críticos sobre a questão conceitual. A metodologia que dá fundamento à abordagem está pautada pela experiência teórica e prática do Autor, com caráter qualitativo, subjetivo e intuitivo. Os resultados são tão-somente a apresentação de ideias com fins de contribuir ao debate conceitual hoje em voga e também para vislumbrar, em uma escala menor, a questão prática dos desenhos de agroecossistemas sustentáveis.
Abstract: The theme of this paper is the debate on principles and strategies for designing sustainable agricultural systems. The paper builds on a broad approach to principles, moving to the more specific approach to strategies and finalizing with a micro-scale perspective on the practice of drawings and the consequences of each possible option. The objective is first of all to put to the debate the dialectic between conceptual plurality and unity in Agroecology. The problem in focus is to situate more clearly what are sustainable agroecosystems and, as a consequence, how to connect principles and strategies to make them viable. Regarding the theoretical reference, we use the classic authors of Agroecology and some critical articles on the conceptual question. The methodology that gives foundation to the approach is based on the author\'s theoretical and practical experience, with a qualitative, subjective and intuitive character. The results are only the presentation of ideas in order to contribute to the conceptual debate now in vogue and also to glimpse, on a smaller scale, the practical issue of sustainable agroecosystems designs. |
| Observaçao: | ISSN: 1982-6745, 1414-7106. DOI: 10.17058/redes.v22i2.9351 Pendência: PA SEG associado. (ID_PAT: 21449) |
| Palavras-chave: | Agroecologia; Princípios; Estratégias; Desenho de sistemas sustentáveis; Sistemas biodiversos; Debate conceitual.
Agroecology; Principles; Strategies; Design of sustainable systems; Biodiverse systems; Conceptual debate. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | ..... |
| Descrição: | RAMOS, N. P.; VIDAL, T. A.; RAMOS, R.; ROSSETTO, R.; NECHET, K. de L. Carbon dioxide enrichment effects on the decomposition of sugarcane residues. International Sugar Journal, v. 120, n. 1432, p. 312-316, Apr. 2018. |
| Parceria/partes: | APTA - Agência Paulista de Tecnologia dos Agronegócios, PUC - Pontifícia Universidade Católica de Campinas, UniFAJ - Centro Universitário de Jaguariúna, |
| Peso: | B1 |
| Conteúdo: | Abstract: The aim of this study was to determine the decomposition dynamics of sugarcane residue under conditions of enriched atmospheric CO2 concentration using a FACE facility (Free-Air Carbon Dioxide Enrichment). The experiment, conducted in Jaguariúna, São Paulo State, Brazil, using the ClimapestFACE facility, received two treatments: elevated CO2 (550 ± 100 μmol mol-1) and ambient CO2 (400 μmol mol-1), for a single amount (5 t ha-1) of straw (cane trash), in a randomized-block design with six replications. Decomposition was determined by using litter bags with sampling at 0, 14, 36, 60, 90, 119, 179, 291 and 362 days after commencement Abstract: The aim of this study was to determine the decomposition dynamics of sugarcane residue under conditions of enriched atmospheric CO2 concentration using a FACE facility (Free-Air Carbon Dioxide Enrichment). The experiment, conducted in Jaguariúna, São Paulo State, Brazil, using the ClimapestFACE facility, received two treatments: elevated CO2 (550 ± 100 μmol mol-1) and ambient CO2 (400 μmol mol-1), for a single amount (5 t ha-1) of straw (cane trash), in a randomized-block design with six replications. Decomposition was determined by using litter bags with sampling at 0, 14, 36, 60, 90, 119, 179, 291 and 362 days after commencement and determining the remaining biomass (kg ha-1) and half-life (t1/2) of decomposition (calculated by first-order exponential model). Results showed significant statistical interaction among treatments, mainly from 90 to 179 days after the beginning of the experiment when the region had high precipitation and, coincidently, the highest straw decomposition rate (4%) at the ambient CO2, concentration (400 µmol mol-1). After that, there were no statistical differences. Small differences between treatments were not significant to affect the overall behavior of the decomposition dynamic, which followed an exponential behavior, with the same k (0.002929 kg days-1) for both treatments. Decomposition ratio was high (33%) during the first 36 days, but t1/2 was 237 days. Final decomposition was 69% with 1.5 t ha-1 of remaining biomass. We concluded that the increase of atmospheric CO2 concentration (from 400 to 550 ± 100 µmol mol-1) does not change the dynamic of sugarcane residue decomposition, which is exponential and has its highest biomass loss in the first 36 days after field deposition. |
| Observaçao: | ISSN: 0020-8841. (ID_PAT: 23082) |
| Palavras-chave: | Decomposition; Sugarcane residue; Climate change; Sustainability; FACE; Sugarcane. |
| Valor JCR (2017): | 0.067 |
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| Plano de Ação: | 01.10.06.001.05.04 |
| Descrição: | ALVES, A. R.; MEDEIROS, A. N. de; ANDRADE, A. P. de; FRIGHETTO, R. T. S.; SILVA, M. J. S. A caatinga e a oportunidade de mitigação das emissões de gases de efeito estufa pela atividade pastoril. Revista em Agronegócio e Meio Ambiente, Maringá, v. 11, n. 2, p. 639-661, 2018. |
| Parceria/partes: | UFPB - Universidade Federal da Paraíba, IFMA - Instituto Federal de Educação Ciência e Tecnologia do Maranhão, IFRO - Instituto Federal de Educação Ciência e Tecnologia de Rondônia, |
| Peso: | B1 |
| Conteúdo: | Resumo: A mudança climática como consequência da emissão antropogênica de gases de efeito estufa está entre os temas em evidência. A agropecuária é apontada como uma das fontes de emissões de gases de efeito estufa, em especial a pecuária que contribui com as emissões de metano (CH4), de origem entérica e de dejetos, e a emissão de óxido nitroso (N2O) do solo de pastagens e da produção de grãos. Metano de ruminantes origina-se, principalmente, como produtos do processo realizado pelos microrganismos do rúmen. Estes microrganismos utilizam nutrientes do alimento ingerido como substrato e produzem diversos compostos como produtos desse metabolismo, dentre eles o metano. Dessa maneira, a emissão de metano está diretamente relacionada à dieta ingerida pelos animais ruminantes. A origem da emissão de óxido nitroso está relacionada aos dejetos de animais, sólidos e líquidos, pelo mecanismo de transformação da urina-ureia a N2O. Para assegurar que a produção de animais ruminantes seja eficiente, sustentável e ambientalmente amigável, serão necessários métodos de alimentação mais eficientes e apropriados, assegurando o funcionamento eficiente do rúmen. A Caatinga tem ampla diversidade de árvores e arbustos que apresentam características que a difere como fonte de recurso forrageiro quando comparada com pastagens cultivadas, decorrente de seus aspectos nutricionais como a presença de compostos provenientes do metabolismo secundário das espécies vegetais e, portanto, pode refletir diretamente no desempenho animal e na emissão de metano.
Abstract: Climatic changes caused by anthropogenic greenhouse gas emissions are the most significant themes at present. Agriculture and livestock have been identified as one of the sources of greenhouse gas emissions. This is especially true for cattle due to their emission of methane (CH4), enterically-derived and from wastes, and to the emission of nitrous oxide (N2O) from pastures and grain production. Methane from ruminants is mainly the product of processes involving microorganisms in the rumen. They use nutrients from ingested food as substrates and produce several compounds as products of metabolism, methane included. The emission of methane is therefore directly related to ruminant animals ́ diet. The emission of nitrous oxide is related to animals ́ solid and liquid wastes through the transformation of urine-urea into N2O. Feeding methods have to be more efficient and adequate, warranting the rumen ́s correct functioning, so that the product of ruminant animals would be more efficient, sustainable and environmentally friendly. The Brazilian caatinga or shrubland has a wide range of trees and shrubs, and, therefore, forage sources with different characteristics from those of the common pastureland. The above is due to nutritional aspects such as compounds derived from secondary metabolism of vegetal species which may be directly perceived in the animal ́s performance and methane emission. |
| Observaçao: | ISSN: 1981-9951, 2176-9168 (online). DOI: http://dx.doi.org/10.17765/2176-9168.2018v11n2p639-661 (ID_PAT: 22069) |
| Palavras-chave: | Emissão de metano; Pequeno ruminante; Tanino; Nutriente.
Emission of methane; Small ruminants; Tannin; Nutrient. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 02.14.11.004.00.05 |
| Descrição: | BENATO, E. A.; BELLETTI, T. C.; TERAO, D.; FRANCO, D. A. S. Óleos essenciais e tratamento térmico no controle pós-colheita de bolor verde em laranja. Summa Phytopathologica, Botucatu, v. 44, n. 1, p. 65-71, 2018. |
| Parceria/partes: | CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico, IB - Instituto Biológico, |
| Peso: | B1 |
| Conteúdo: | Resumo: O bolor verde é a principal doença de frutos cítricos pós-colheita. Produtos e processos alternativos para controle de doenças de plantas vêm sendo cada vez mais requeridos. O objetivo deste trabalho foi avaliar a atividade antifúngica de óleos essenciais sobre Penicillium digitatum em laranjas, isoladamente ou em combinação com tratamento térmico. Para tanto, um isolado do fungo foi submetido, in vitro, a diferentes concentrações dos óleos de canela, capim-limão e palmarosa, em meio de cultura BDA, sendo avaliada também a atividade antifúngica dos compostos voláteis dos óleos. Além disso, foi realizado um estudo do efeito dos óleos sobre laranjas inoculadas, de modo curativo e protetivo. Laranjas foram inoculadas com 10 uL de suspensão de conídios (105 conídios mL-1), em dois períodos de incubação (4 h antes ou 24 h após os tratamentos). Os tratamentos com óleos essenciais por aspersão foram: testemunha, canela, capim-limão e palmarosa, a 0,5 e 1,0 g L-1, acrescidos de Tween20. Outro teste com óleo de canela, para verificar a melhor dose, foi realizado com 0,0; 0,12; 0,25; 0,5 e 1,0 g L-1 e um blend de canela (0,12 g L-1) e capim-limão (0,12 g L-1). O armazenamento foi a 25 °C e 80% de umidade relativa (UR) por até 6 dias. Posteriormente, efetuou-se um teste em laranjas inoculadas 4 h antes dos tratamentos: testemunha; canela (0,12 g L-1); termoterapia (60 °C por 20 s); termoterapia + óleo de canela; imazalil (1000 mg L-1). Armazenaram-se os frutos a 10 °C/85% UR por 6 dias mais 3 dias em condições ambiente. In vitro, o óleo de canela foi o mais fungitóxico para P. digitatum, inibindo totalmente o índice de crescimento micelial em concentrações superiores a 0,5 g L-1 por contato e, reduzindo significativamente pelos seus constituintes voláteis. Sobre laranjas inoculadas, o óleo de canela foi mais efetivo como curativo e, capim-limão como protetivo. No teste screening, a dose de 0,12 g L-1 do óleo de canela mostrou melhor resultado frente às doses superiores e ao blend de canela mais capim-limão. A combinação termoterapia seguida de aspersão de óleo de canela reduziu significativamente o desenvolvimento do bolor verde (AACPD) nos frutos (40,5%), quando armazenados sob refrigeração; entretanto, o fungicida imazalil proporcionou um controle mais efetivo (97%) durante o armazenamento prolongado.
Abstract: Green mold is the primary postharvest disease of citrus fruits. Alternative products and processes for plant disease control have been increasingly required. The aim of this study was to evaluate the antifungal activity of essential oils on P. digitatum in oranges, alone or in combination with thermal treatment. Thus, an isolate of the fungus was subjected, in vitro, to different concentrations of oils of cinnamon, lemongrass and palmarose, in PDA culture medium; the antifungal activity of the volatile compounds of oils was also evaluated. Furthermore, a study was conducted to verify the effect of oils on inoculated oranges, in a protective and curative mode. Oranges were inoculated with 10 uL conidial suspension (105 conidia mL-1), two incubation periods (4 h before or 24 h after treatments). The treatments with essential oils that were sprayed were: control, cinnamon, lemongrass and palmarose, at 0.5 and 1.0 g L-1, plus Tween20. Another test with cinnamon oil, to determine the best dose, was conducted by using 0.0; 0.12; 0.25; 0.5 and 1.0 g L-1 and a blend of cinnamon (0.12 g L-1) and lemongrass (0.12 g L-1). Storage was at 25 °C and 80% relative humidity (RH) for up to 6 days. Subsequently, a test was conducted in oranges inoculated 4 h before treatments: control; cinamon (0.12 g L-1); thermotherapy (60 °C for 20 s); thermotherapy + cinnamon oil; and imazalil (1000 mg L-1). The fruits were stored at 10 °C/85% RH for 6 days plus 3 days at room conditions. In vitro, cinnamon oil was most fungitoxic for P. digitatum, totally inhibiting the mycelial growth index at concentrations higher than 0.5 g L-1 by contact and significantly reducing it by its volatile compounds. For inoculated oranges, cinnamon oil was more effective as curative and lemon grass as protective. In the screening test, the dose of 0.12 g L-1 cinnamon oil showed better result compared to higher doses and to the blend of cinnamon and lemon grass. The thermotherapy combination followed by spraying of cinnamon oil significantly reduced green mold development (AACPD) in fruits (40.5%) stored under refrigeration; however, the fungicide imazalil provided a more effective control (97%) during prolonged storage. |
| Observaçao: | ISSN: 0100-5405 (impresso), 1980-5454 (online). DOI: http://dx.doi.org/10.1590/0100-5405/175659 (ID_PAT: 21806) |
| Palavras-chave: | Penicillium digitatum; Cinnamomun zeylanicum; Cymbopogon citratus; Cymbopogon martinii; Controle alternativo.
Penicillium digitatum; Cinnamomun zeylanicum; Cymbopogon citratus; Cymbopogon martinii; Alternative control. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 03.13.06.006.00.01 |
| Descrição: | TERAO, D.; NECHET, K. de L.; FRIGHETTO, R. T. S.; ANJOS, V. D. A.; BENATO, E. A.; HALFELD-VIEIRA, B. A. Physical postharvest treatments in the control of stem‐end rot of mango. Journal of Phytopathology, v. 166, n. 7-8, p. 581-589, 2018. |
| Parceria/partes: | IAC - Instituto Agronômico, ITAL - Instituto de Tecnologia de Alimentos, |
| Peso: | B1 |
| Conteúdo: | Abstract: Botryosphaeria dothidea is the major pathogen of mango in Brazil, causing stem‐end rot, which causes significant losses during transportation and storage. The current strategy to control this particular disease using synthetic fungicides has been ineffective, leaving residues in the fruit. The objective of the research was to study the effect of physical treatments, with hot water rinse brushing (HWRB) and ultraviolet C irradiation (UV‐C), individually and in combination, to control stem‐end rot of mango. Physicochemical parameters, respiration and resistance induction of the fruit were also analysed. The in vitro trials demonstrated that B. dothidea is a thermoresistant fungus. The individual treatments with HWRB at 65°C for 15 s and 2.5 kJ/m2 of UV‐C presented the best results, showing less symptoms of the disease during 18 days of storage. The combination of HWRB with UV‐C did not improve the control of the disease when compared to the treatments applied individually. The physicochemical parameters and the consumer acceptance evaluation showed that both physical treatments preserved the appearance of the fruit and delayed the ripening–senescence process. The induction of defence‐related enzymes revealed that induced resistance was an important mechanism involved in the control of stem‐end rot of mango. |
| Observaçao: | ISSN: 0931-1785, 1439-0434 (online). DOI: 10.1111/jph.12721 (ID_PAT: 22008) |
| Palavras-chave: | Botryosphaeria dothidea; Hot water rinse brushing; Mangifera indica; Resistance induction; UV-C irradiation. |
| Valor JCR (2017): | 0.823 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | NUNES, K. S. D.; ASSALIN, M. R.; VALLIM, J. H.; JONSSON, C. M.; QUEIROZ, S. C. N. de; REYES, F. G. R. Multiresidue method for quantification of sulfonamides and trimethoprim in tilapia fillet by liquid chromatography coupled to quadrupole time-of-flight mass spectrometry using QuEChERS for sample preparation. Journal of Analytical Methods in Chemistry, Article 4506754, 10 p., 2018. |
| Parceria/partes: | UNICAMP - Universidade Estadual de Campinas, |
| Peso: | B1 |
| Conteúdo: | Abstract: A multiresidue method for detecting and quantifying sulfonamides (sulfapyridine, sulfamerazine, sulfathiazole, sulfamethazine, sulfadimethoxine, sulfamethoxazole, and sulfamethoxypyridazine) and trimethoprim in tilapia fillet (Oreochromis niloticus) using liquid chromatography coupled to mass spectrometry was developed and validated. The sample preparation was optimized using the QuEChERS approach. The chromatographic separation was performed using a C18 column and 0.1% formic acid in water and acetonitrile as the mobile phase in the isocratic elution mode. Method validation was performed based on the Commission Decision 2002/657/EC and Brazilian guideline. The validation parameters evaluated were linearity (r ≥ 0.99); limits of detection (LOD) and quantification (LOQ), 1 ng·g−1 and 5 ng·g−1, respectively; intraday and interdays precision (CV lower than 19.4%). The decision limit (CCα 102.6–120.0 ng·g−1 and 70 ng·g−1 for sulfonamides and trimethoprim, respectively) and detection capability (CCβ 111.7–140.1 ng·g−1 and 89.9 ng·g−1 for sulfonamides and trimethoprim, respectively) were determined. Analyses of tilapia fillet samples from fish exposed to sulfamethazine through feed (incurred samples) were conducted in order to evaluate the method. This new method was demonstrated to be fast, sensitive, and suitable for monitoring sulfonamides and trimethoprim in tilapia fillet in health surveillance programs, as well as to be used in pharmacokinetics and residue depletion studies. |
| Observaçao: | ISSN: 2090-8865. DOI: https://doi.org/10.1155/2018/4506754 (ID_PAT: 21691) |
| Palavras-chave: | |
| Valor JCR (2017): | 1.262 |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | MORALES-REYES, C.; MASCARIN, G. M.; JACKSON, M. A.; HALL, D.; SANCHEZ-PENA, S. R.; ARTHURS, S. P. Comparison of aerial conidia and blastospores from two entomopathogenic fungi against Diaphorina citri (Hemiptera: Liviidae) under laboratory and greenhouse conditions. Biocontrol Science and Technology, v. 28, n. 8, p. 737-749, 2018. |
| Parceria/partes: | University of Florida, Universidad Autónoma Agraria Antonio Narro , USDA - United States Department of Agriculture, |
| Peso: | B1 |
| Conteúdo: | Abstract: This study compared the insecticidal activity of liquid culture-produced blastospores and solid substrate-produced aerial conidia of Beauveria bassiana GHA and Isaria fumosorosea ARSEF3581 strains against Diaphorina citri adults. Insects exposed to 107 propagules/ml in a spray residue contact leaf bioassay died within 6 days at 25°C, with no significant differences between fungal treatments. At higher concentrations (108 propagules/ml), I. fumosorosea conidia killed psyllids faster compared to its blastospore formulation, i.e. 4 versus 5 days, respectively. In greenhouse tests, the same treatments applied to infested citrus plants (2 × 106 spores/ml) all significantly reduced the number of nymphs compared with the untreated controls over 3 weeks; however, only I. fumosorosea blastospores significantly reduced the number of F1 adult psyllids when compared with controls. Similar results were observed in the follow-up greenhouse test, where I. fumosorosea blastospores were the most effective treatment overall, reducing D. citri populations by about 60% after 21 days; by contrast, imidacloprid killed almost 100% of psyllids within a week in both tests. Fewer psyllids exhibited mycosis in the greenhouse (i.e. ≈20 versus ≥ 87% in the laboratory). This is the first report comparing both conidial and blastospore formulations of B. bassiana and I. fumosorosea for the control of a psyllid pest. Field testing is required to determine how successful different spore formulations might be under various environmental conditions. |
| Observaçao: | ISSN: 0958-3157 (print), 1360-0478 (online). DOI: https://doi.org/10.1080/09583157.2018.1487028 Resultado de período de doutoramento no exterior, sem vínculo ao SEG/Embrapa. (ID_PAT: 22023) |
| Palavras-chave: | Beauveria bassiana; Isaria fumosorosea; Virulence; Residue bioassay. |
| Valor JCR (2017): | 0.918 |
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| Plano de Ação: | ..... |
| Descrição: | STEINKE, V. A.; BARBOSA, S. M. S.; MENDES, V. J. M.; ZANATTO, V. G.; PESSOA, G. E.; SILVA, G. B. S. da Spatial analysis of federal protected areas and priority areas for biodiversity conservation in Brazil. Journal of Geographic Information System, v. 10, n. 6, p. 718-734, 2018. |
| Parceria/partes: | UnB - Universidade de Brasília, |
| Peso: | B2 |
| Conteúdo: | Abstract: This study presents a spatial analysis of priority areas for biodiversity conservation (PABCs) in Brazil and their coverage by federal protected areas as an indicator of the level of protection afforded to biodiversity in the country and the convergence of environmental protection policies in the sphere of federal government. Georeferenced data were processed using a geographic information system, enabling the calculation of areas, analyses of superimpositions, localizations, and the obtainment of other information using spatial features manipulated in this system. A comparative analysis is done of the PABCs mapped in two periods (2003 and 2007) to ascertain the evolution of this public policy instrument in detecting environmental priorities in protected areas. The improved coverage of PABCs by protected areas in the more recent mapping indicates a good convergence of environmental policies, which are enhanced by technical improvements to mapping procedures and methods for identifying such areas. As a result, the priority areas for biodiversity conservation could become a protected area regulated and recognized by the federal government. Valdir Adilson Steinke, Sandra Maria da Silva Barbosa, Venicius Juvêncio de Miranda Mendes, Vinicius Galvão Zanatto, Gabriella Emilly Pessoa, Gustavo Bayma Department of Geography, University of Brasília, Brasília, Brazil |
| Observaçao: | ISSN: 2151-1950 (print), 2151-1969 (online). DOI: 10.4236/jgis.2018.106037 Pendência: código SEG associado. (ID_PAT: 22882) |
| Palavras-chave: | Protected Areas; Environment; Public Policies; Spatial Information; Geoprocessing; Priority Areas for Biodiversity Conservation. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 01.14.09.001.06.04 |
| Descrição: | SILVA JÚNIOR, E. C.; SANTANA, G. S.; MUÑOZ, M. S. G.; PORTO, B. H. C.; JUNQUEIRA, A. M. R.; SOARES, J. P. G.; RODRIGUES, G. S. Comércio justo e gestão ambiental para a sustentabilidade: o caso de uma comunidade que sustenta a agricultura (CSA). Cadernos de Ciência & Tecnologia, Brasília, v. 35, n. 1, p. 11-36, jan./abr. 2018. |
| Parceria/partes: | Embrapa Café (CNPCa), Embrapa Cerrados (CPAC), UnB - Universidade de Brasília, |
| Peso: | B2 |
| Conteúdo: | Resumo: O presente trabalho propõe uma análise do desempenho ambiental da produção orgânica de hortaliças e frutas na Chácara Vale Verde, estabelecimento rural próximo a Brasília, DF, cujas relações de mercado são fundamentadas na organização de uma “Comunidade que Sustenta a Agricultura” (CSA). O principal objetivo da pesquisa é compreender o papel dessa estratégia de economia solidária para o desenvolvimento sustentável da agricultura, conforme realizada nesse estabelecimento rural de referência. Para tanto, fez-se uso do Sistema de Avaliação Ponderada de Impacto Ambiental de Atividades Rurais (Apoia-NovoRural), que integra 62 indicadores de desempenho ambiental em cinco dimensões de sustentabilidade. Segundo o levantamento de dados e análise das evidências de campo, os índices de desempenho obtidos (índices multiatributo entre 0 e 1, com a linha de base modelada em 0,7) para essas cinco dimensões foram: Ecologia da Paisagem (0,78), Qualidade Ambiental – atmosfera, água e solo (índice médio de 0,79), Valores Socioculturais (0,86), Valores Econômicos (0,88) e Gestão e Administração (0,94), com um índice integrado de sustentabilidade igual a 0,85. Esses resultados atestam o excelente desempenho ambiental do estabelecimento, cujo foco nas relações solidárias com o coletivo, representado pela CSA, representa uma estratégia de desenvolvimento sustentável, com qualidade e segurança alimentar.
Abstract: This study analyzes the environmental performance of organic production of fruits and vegetables at Chácara Vale Verde, a rural establishment located in Brasília (Brazil), which bases its market relations on the organization of a “community that sustains agriculture” (CSA). The main objective of the research is to understand the role of this strategy of solidarity economy for the sustainable development of agriculture, as carried out in this reference rural establishment. The assessment was carried out via application of a system for weighted environmental impact assessment of rural activities (Apoia-NovoRural), which integrates 62 environmental performance indicators, related to five dimensions of sustainability. According to data collection and the analysis of field evidence, the performance indices obtained (in multi-attribute indices from 0 to 1, with baseline modeled at 0.7) for these five dimensions were: Landscape Ecology (0.78), Environmental Quality – atmosphere, water and soil (average index 0.79), Sociocultural Values (0.86), Economic Values (0.88), and Management and Administration (0.94), with an integrated sustainability index of 0.85. These results attest to the excellent environmental performance of the establishment, whose focus on solidarity relations with the collective, represented by the CSA, represents a strategy of sustainable development, focused on food quality and safety. |
| Observaçao: | ISSN: 0104-1096. Acessível em http://seer.sct.embrapa.br/index.php/cct/issue/view/635 Título em inglês: Fair trade and environmental management for sustainability - the case of a community that sustains agriculture (CSA). (ID_PAT: 22238) |
| Palavras-chave: | Agricultura sustentável; Apoia-NovoRural; Avaliação de impactos; Desenvolvimento rural.
Sustainable agriculture; Apoia-NovoRural; Assessment of impacts; Rural development. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 16.00.2.50.01.16 |
| Descrição: | ARISTIZÁBAL, L. F.; SHRINER, S.; HOLLINGSWORTH, R. G.; MASCARIN, G. M.; CHAVES, B.; MATSUMOTO, T.; ARTHURS, S. P. Field sampling strategies for coffee berry borer (Coleoptera: Curculionidae: Scolytinae) infesting berries in coffee farms in Hawaii. International Journal of Tropical Insect Science, v. 38, n. 4, p. 418–426, 2018. |
| Parceria/partes: | Washington State University - USA, Texas A&M University, |
| Peso: | B2 |
| Conteúdo: | Abstract: The coffee berry borer (CBB), Hypothenemus hampei Ferrari, a recent invader to Hawaii, is impacting coffee growers by reducing yields and quality and increasing production costs. Monitoring strategies are needed to assess infestations and where control operations are warranted, and evaluate their effectiveness. To develop and validate a fixed-precision sequential sampling plan, an intensive CBB sampling programme was conducted in 17 small farms in Kona and Kau districts in the Big Island in 2016/17. At each location, 30 trees/ha were monitored at 2–4 week intervals. Results show that the CBB has an aggregated spatial distribution based on Taylor\\\'s power law parameters. According to Green\\\'s stop line formula, between 6 and 50 coffee branches per ha (sample unit) are required to estimate infestation rates of 1.5–2.5% infested green berries (suggested economic threshold) with a precision fixed at 10 to 25%. Concurrently, a modified strategy was tested on 14 farms, in which only infested green berries (not total) was counted. The standard and modified sampling methods were highly correlated (R2 ≥ 0.98), while the modified approach required on average only 35 min (27% less time) to complete, with an additional 24 min taken to observe the position of the CBB inside the berry. Our data also show that berry infestation rates of CBB prior to harvest were a good predictor of the total defects resulting in processed green coffee from these farms (Pearson\\\'s r coefficient of 0.82). Our findings support improved sampling for the CBB under Hawaiian conditions using a simpler and faster monitoring strategy based on counting green infested berries. |
| Observaçao: | ISSN: 1742-7584 (Print), 1742-7592 (Online). DOI: 10.1017/S174275841800022X Publicação não associada a projeto SEG/Embrapa. (ID_PAT: 22436) |
| Palavras-chave: | Hypothenemus hampei; Pest monitoring; Sequential sampling plan; Coffea arabica. |
| Valor JCR (2017): | 0.659 |
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| Plano de Ação: | 02.14.14.001.00.03 |
| Descrição: | MAY, A.; RAMOS, N. P.; SANTOS, M. S. dos; SILVA, E. H. F. M. da; ROSSI, P.; VIANA, R. da S. Pre-sprouted seedlings production methods through buds or mini-stems: emergence and initial development of sugarcane cultivars. Científica, Jaboticabal, v. 46, n. 4, p. 403-411, 2018. |
| Parceria/partes: | ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", CAPES - Coordenação de Aperfeicoamento de Pessoal de Nível Superior, UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, |
| Peso: | B3 |
| Conteúdo: | Abstract: This study evaluates the emergence and initial development of sugarcane cultivars with different bud sizes, based on the system of pre-sprouted seedlings (PSS). Early sugarcane cultivars (RB966928, RB855156 and IACSP91-1099) were evaluated. These evaluations comprised three positions of the sugarcane stem (tip, middle and base) and four types of sugarcane propagules (mini-stem and 3 bud sizes with different diameters: 22 mm (1), 29 mm (2) and 35 mm (3)). Three trials were performed, each with a different cultivar. The experimental design for each cultivar was a randomized block in a 3x4 factorial scheme (stem position x propagule size (vegetative material)) with 4 replicates. Emergence was evaluated daily, and from these evaluations the emergence speed index (ESI) was calculated. Plant height, shoot dry mass and root dry mass were also assessed. Data were submitted to analysis of variance with interaction, and the Tukey test was applied. When simple variable transformations were not enough to meet the assumptions of normality and homoscedasticity, the non-parametric Friedman test was used. ESI indicated that the best type of propagule was the mini-stem, and for cultivars IACSP91-1099 and RB855156 the best performing position was the tip. The Friedman test indicated significance of the causes of variation related to propagule size and stem position for shoot dry mass in all evaluated cultivars. In addition, the test indicated significant variation of root dry mass for cultivars IAC91-1099 and RB966928 between propagule sizes and the stem positions. The height of cultivar IACSP91-1099 showed interaction between the different propagule sizes and stem positions. The greatest increase of height in sugarcane seedlings occurred for the mini--stem propagule and tip position. Cultivars RB855156 and RB966928 also showed interaction between the different propagule sizes and stem positions. Cultivar RB855156 showed the highest plant height with the mini- -stem propagule at the tip position, however it did not differ statistically from the propagule with size 3 at the tip and middle positions. The mini-stem and the bud with size 3, removed from the tip of the stem, are the best alter-natives for seedling production.
Resumo: O objetivo desse estudo foi avaliar a emergência e desenvolvimento inicial de diferentes tamanhos de gemas de cultivares de cana-de-açúcar, comparando ao sistema de mudas pré-brotadas (MPB). Foram avaliadas cultivares de ciclo precoce de cana-de-açúcar (RB966928, RB855156 e IACSP91-1099), em três posições do colmo da cana (ponta, meio e base) e quatro tipos de propágulos de cana-de-açúcar (rebolo ou minitolete e 3 tamanhos de gemas com diferentes de diâmetro 22 mm (1), 29 mm (2) e 35 mm (3)). Foram realizados três ensaios cada um com uma cultivar diferente. O delineamento experimental para cada cultivar foi o de blocos ao acaso em esquema fatorial 3x4 (posição do colmo x tamanho do propágulo (material vegetativo) com 4 repetições. Foram realizadas avaliações de emergência diária, e a partir de tais avaliações foram calculados o índice de velocidade de emergência (ESI). Também foram avaliadas as variáveis altura das plantas, a massa seca da parte aérea e a massa seca de raízes. Os dados obtidos foram submetidos a análise de variância (ANOVA) com desdobramento de interação e foi aplicado o teste de Tukey. Quando simples transformações de variáveis não foram suficientes para garantir os pressupostos de normalidade e homocedasticidade foi utilizado o teste não-paramétrico de Friedman. As análises de ESI indicaram que o melhor tipo de propágulo foi o rebolo e para as cultivares IACSP91-1099 e RB855156 a posição com melhor desempenho foi a ponta. O teste de Friedman indicou significância das causas de variação relacionadas aos tamanhos de propágulos e as posições do colmo relativas à variável massa seca da parte aérea, em todas as cultivares avaliadas, e ainda que existiu variação significativa da massa seca das raízes para as cultivares IAC91-1099 e RB966928 entre os tamanhos dos propágulos e as posições do colmo. A variável altura da cultivar IACSP91-1099 apresentou interação entre os diferentes tamanhos dos propágulos e as posições do colmo. O maior incremento de altura nas mudas de cana aconteceu no propágulo de tamanho rebolo e a posição do colmo ponta. As cultivares RB855156 e RB966928 também apresentaram interação entre os diferentes tamanhos dos propágulos e as posições do colmo. A cultivar RB855156 apresentou a maior altura de planta quando o propágulo foi o rebolo na posição ponta, contudo não diferiu estatisticamente do propágulo de tamanho 3 na posição ponta e meio. O rebolo e o tamanho de gema 3 retirados da posição ponta do colmo são as melhores alternativas para a produção de mudas. |
| Observaçao: | ISSN: 1984-5529. DOI: http://dx.doi.org/10.15361/1984-5529.2018v46n4p403-411 (ID_PAT: 22612) |
| Palavras-chave: | Germination; PSS, Saccharum spp; Vegetative propagation.
Germinação; MPB; Propagação vegetativa; Saccharum spp. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | ..... |
| Descrição: | SANTOS, M. S. dos; VILELA, E. S. D.; PAZIANOTTO, R. A. A. ; REYNALDO, E. F.; SILVA, E. H. F. M. da; BUENO, A. C. S. O.; MAY, A. Evaluation of microbial and enzymatic communities in soil and rizosphere from soybean plants. African Crop Science Journal, v. 26, n. 1, p. 79-92, 2018. |
| Parceria/partes: | ESALQ - Escola Superior de Agricultura "Luiz de Queiroz", UFRA - Universidade Federal Rural da Amazônia, Monsanto do Brasil Ltda, São Paulo/SP, |
| Peso: | B4 |
| Conteúdo: | Abstract: Understanding the biological and biochemical soil properties, as well as its enzymatic activity is important in designing an efficient alternative to demonstrate desired modifications in the soil. Such modifications are related to crop systems, cultivation practices or other human activities. The objective of this study was to evaluate the diversity of some microorganisms (Bacillus, Pseudomonas, Trichoderma and Fusarium) and enzymatic activity in soil from soybean crops with different yields. Soil sampling was determined according to the productivity yields of the property, which were divided into high, medium, and low yield. Microorganisms were evaluated by counting populations of fungi and bacteria through serial dilutions of total bacteria, Bacillus, Pseudomonas, Trichoderma and Fusarium. The b-glucosidase, acid phosphatase and arylsulphatase activities were determined by spectrophotometry after one hour of incubation at 37 oC, with the specific substrate p-nitrophenol-b-D-glucopyranoside, p-nitrophenol-phosphate and p-nitrophenyl sulphate, respectively, for each studied enzyme. Urease was determined by the ammonium release method, after incubating the soil with urea for two hours, at 37 oC. Soil samples from the high-yield plot had higher concentrations of Bacillus and total bacteria. The low-yield soil showed a higher level of colonies of the genus Fusarium. The studied enzyme activities (b-glycosidase, arylsulphatase and urea) were found at lower values in soil samples from the high-yield field and differed statistically from the low-yield field. However, in the rhizosphere samples, these enzymes had a higher activity in the high-yield field. In view of these results, it is possible that the yield of soybean plants influences the number of microorganisms and the enzymatic activity of the soil microbiota. |
| Observaçao: | ISSN: 1021-9730. DOI: http://dx.doi.org/10.4314/acsj.v26i1.6 Pendência: PA SEG associado (de projeto co-financiado FAPESP, em apropriação). (ID_PAT: 21756) |
| Palavras-chave: | Bacillus; p-nitrophenol-b-D-glucopyranoside; Pseudomonas; Trichoderma; Fusarium. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | ..... |
| Descrição: | TEIXEIRA, A. H. de C.; LEIVAS, J. F.; SILVA, G. B. S. da; GARCON, E. A. M. Evapotranspiration estimations in the Brazilian semi-arid by using MODIS reflectance products and agrometeorological stations. Modern Environmental Science and Engineering, v. 4, n. 10, p. 953-960, out. 2018. |
| Parceria/partes: | Embrapa Tabuleiros Costeiros (CPATC), Embrapa Territorial (CNPM), |
| Peso: | B4 |
| Conteúdo: | Abstract: The semi-arid region of Northeast Brazil has experienced several cases of strong water scarcity together with increasing land-use changes, demanding large-scale evapotranspiration studies to subsidize water policies. Aiming to subsidize the rational water resources management under these scenarios, the use of the reflectance bands from the MODIS MOD13Q1 product together with a net of 14 weather stations was tested to acquire large-scale actual evapotranspiration (ET) along the dry year 2016. The SAFER (Simple Algorithm for Evapotranspiration Retrieving) algorithm was applied for modelling ET in the counties of Petrolina and Juazeiro, respectively Pernambuco and Bahia states, Northeast Brazil. Clearly one could see higher ET values for irrigated crops (IC) than for natural vegetation (NV) in both counties. Even they presenting similar water flux dynamics along the year, in Juazeiro, ET rates represented 78% of those for Petrolina. One reason for the smaller values in Juazeiro could be attributed to the lower crop water consumption from the São Francisco River. It was demonstrated the potential to monitor large-scale ET at the 16-day MOD13Q1 time-scale by combining remote sensing and agrometeorological measurements in mixed agroecosystems of semi-arid environments. |
| Observaçao: | ISSN: 2333-2581. DOI: 10.15341/mese(2333-2581)/10.04.2018/005 Pendência: código SEG associado. (ID_PAT: 22884) |
| Palavras-chave: | Remote sensing; Water resources; SAFER. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 04.13.11.001.01.02 |
| Descrição: | MANZATTO, C. V.; ARAUJO, L. S. de; VICENTE, L. E.; KOGA-VICENTE, A.; PEROSA, B. B. Plataforma ABC: monitoramento da mitigação das emissões de carbono na agropecuária. Agroanalysis, São Paulo, v. 38, n. 3, p. 26-29, 2018. |
| Parceria/partes: | UFU - Universidade Federal de Uberlândia, |
| Peso: | B4 |
| Conteúdo: | Ao se analisarem os impactos da ação humana nas mudanças climáticas, a agropecuária é mencionada como uma das principais causas do desmatamento florestal, contribuindo para o aumento das emissões de gases do efeito estufa (GEEs). As emissões do setor, cerca de 31% do total nacional, são oriundas do processo produtivo, como emissões de gás metano na pecuária, liberação de carbono pelas práticas de manejo do solo e outras. Se, por um lado, essas externalidades negativas geradas pela agropecuária podem fragilizar a imagem do setor; por outro lado, representam uma excelente oportunidade para reduzir emissões ou mesmo recompor os estoques de carbono que foram liberados ao longo das últimas décadas. E esta recomposição deverá ser contabilizada para o cumprimento dos compromissos internacionais de redução de emissões que o Brasil assumiu voluntariamente por meio do Plano ABC e que foram ratificados e ampliados em 2016 na COP-21, em Paris. Contudo, para que esse imenso potencial se traduza em ganhos para o Brasil, é preciso desenvolver instrumentos para monitorar e contabilizar a mitigação das emissões de GEE geradas pela agropecuária de forma sistemática e metodologicamente aceita internacionalmente. É com esta missão que, em 2016, foi inaugurada a Plataforma ABC, localizada na Embrapa Meio Ambiente e sob coordenação do Ministério da Agricultura, Pecuária e Abastecimento (MAPA) e da Empresa Brasileira de Pesquisa Agropecuária (Embrapa). Com o objetivo de articular os esforços de monitoramento das estimativas de redução das emissões de GEEs dos diversos setores ligados à agropecuária, a Plataforma conta com um Comitê Diretor, composto por membros do MAPA, do Ministério do Meio Ambiente (MMA), do Ministério da Ciência, Tecnologia, Inovações e Comunicações (MCTIC), da Embrapa, da Rede Brasileira de Pesquisas sobre Mudanças Climáticas Globais (Rede Clima), do sistema bancário, da sociedade civil e do setor agropecuário privado. |
| Observaçao: | ISSN: 0100-4298. (ID_PAT: 21694) |
| Palavras-chave: | |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 04.14.07.001.00.04 |
| Descrição: | SARAVALLE, C. Y.; ABREU, L. S. de Rede sociotécnica do Núcleo de Agroecologia Apetê Caapuã de Sorocaba (SP:) percepções e avaliação das ações desenvolvidas no contexto das políticas públicas. Retratos de Assentamentos, Araraquara, v. 20, n. 2, p. 57-85, 2017. |
| Parceria/partes: | UFSCar - Universidade Federal de São Carlos - campus Araras, |
| Peso: | B4 |
| Conteúdo: | Resumo: Apesar da atual importância da problemática relacionada às redes sociotécnicas e o fortalecimento de núcleos de agroecologia, até o momento essa temática foi pouco estudada. A pesquisa teve como objetivos: i) caracterizar o universo social da rede sociotécnica do Núcleo Apetê Caapuã da UFSCar (SP); ii) avaliar, por meio das percepções do grupo as políticas públicas de incentivo à agroecologia, em especial dos Núcleos de Estudos em Agroecologia (NEA). Para tanto, realizou-se entrevistas semiestruturadas, aplicação de questionário online e observação participante em reuniões chaves do grupo. Foram sistematizados os projetos desenvolvidos pelo grupo a partir dos editais CNPq, PET, PROEXT e ProEx, além da identificação das percepções dos sujeitos envolvidos, que expressam a importância dos mesmos nas atividades de ATER e construção do conhecimento agroecológico pelo grupo. Conclui-se que apenas os editais de NEAs não são suficientes para a manutenção do Núcleo, sendo importante a articulação entre as políticas como o PET, PRONERA, Editais CNPq e, outros órgãos para a sustentabilidade da rede. Os principais desafios apontados são a falta de tempo suficiente dos projetos para a transição agroecológica das unidades de produção familiar, além da pouca disponibilidade de recursos para a contratação de profissionais formados em ATER.
Abstract: Despite the current importance of the problem related to sociotechnical networks and the strengthening of agroecology nuclei, until now this theme has been little studied. The objective of the research was to: i. characterize the social universe of the socio-technical network of the Apetê Caapuã Nucleus of UFSCar (SP); ii. to evaluate, through the perceptions of the group, the public policies of incentive to agroecology, in particular of the Nuclei of Studies in Agroecology (NEA). For that, we conducted semistructured interviews, application of online questionnaire and participant observation in key group meetings. The projects developed by the group from the CNPq, PET, PROEXT and ProEx edits were systematized, as well as the identification of the perceptions of the subjects involved, which express their importance in the activities of ATER and the construction of agroecological knowledge by the group. It is concluded that only the calls for NEAs are not sufficient for the maintenance of the Nucleus, being important the articulation between the policies, like the PET, PRONERA, CNPq calls, among others, for the sustainability of the network. The main challenges are the lack of sufficient time for the projects for the agroecological transition of the family production units, as well as the limited availability of resources for the contracting of professionals trained in ATER. |
| Observaçao: | E-ISSN: 1516-8182; 2527-2594. DOI: http://dx.doi.org/10.25059/2527-2594/retratosdeassentamentos/2017.v20i2.282 (ID_PAT: 21690) |
| Palavras-chave: | Políticas públicas; Extensão Rural; Extensão Universitária.
Public policies; Rural extension; University Extension. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 06.13.14.002.00.03 |
| Descrição: | CAMARGO, R. A. L. de; RAMOS-FILHO, L. O.; CAMPOS, M. O. de; GONÇALVES, D. Implantação e acompanhamento de sistemas agroflorestais no assentamento Sepé Tiaraju/SP. Revista Elo - Diálogos em Extensão, Viçosa, v. 7, n. 2, p. 28-34, dez. 2018. |
| Parceria/partes: | UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, |
| Peso: | B4 |
| Conteúdo: | Resumo: Sistemas agroflorestais (SAFs) podem, de modo geral, ser definidos como o plantio conjunto de espécies arbóreas e arbustivas, nativas e exóticas, frutíferas e cultivos anuais numa mesma área, de forma a criar um sistema complexo com grande produção de biomassa e manutenção da fertilidade pelo manejo da matéria orgânica e ciclagem dos nutrientes. No assentamento Sepé Tiarajú foram implantados 35 experiências de SAFs entre os anos 2014 e 2016, através do Projeto Microbacias II, do estado de São Paulo. Essas experiências seguiram um desenho geral que contemplava as exigências do financiador, as preferencias do agricultor e os princípios gerais do consórcio de espécies dentro de um SAF. Atualmente algumas dessas experiências estão sendo mapeadas com o uso da ferramenta AutoCAD, para facilitar seu monitoramento por técnicos e agricultores; ao mesmo tempo em que são elaboradas cartilhas personalizadas com as características e usos das principais espécies que o agricultor tem no seu sistema.
Abstract: Agroforestry systems (AFSs) can generally be defined as the cultivation of native and exotic treeand shrub species, fruit trees and annual crops in the same area, in order to create a complex system with largebiomass production and fertility maintenance through the management of organic matter and nutrient cycling.At the Sepé Tiaraju settlement, thirty-five AFSs experiments were implemented between 2014 and 2016,through the Microbacias II Project, in the state of São Paulo. These experiments followed a general design thatcombined the Project\'s requirements, the farmer\'s preferences, and the general principles of species consortiumwithin an AFS. Some of these experiences were mapped, using the AutoCAD tool, to ease its monitoring bytechnicians and farmers; at the same time that personalized booklets were drawn with the characteristics anduses of the main species that the farmer has in his system. Resumen:Los sistemas agroforestales (SAFs) pueden definirse, en general, como la plantación conjunta deespecies arbóreas y arbustivas, nativas y exóticas, frutales y cultivos anuales en una misma área, para crearun sistema complejo con gran producción de biomasa y mantenimiento de la fertilidad por el manejo de lamateria orgánica y el ciclo de los nutrientes. En el asentamiento Sepé Tiaraju se implantaron treinta y cinco experiencias de SAFs entre los años 2014 y 2016, a través del Proyecto Microbacias II, del estado de SãoPaulo. Estas experiencias siguieron un diseño general que contemplaba las exigencias del Proyecto, laspreferencias del agricultor y los principios generales del consorcio de especies dentro de un SAF. Algunas deestas experiencias fueran mapeadas con el uso de la herramienta AutoCAD, para facilitar su monitoreo portécnicos y agricultores; al mismo tiempo que se elaboraron cartillas personalizadas con las características yusos de las principales especies que el agricultor tiene en su sistema. |
| Observaçao: | ISSN: 2317-191X (impresso), 2317-5451 (online). DOI: https://periodicos.ufv.br/ojs/elo/article/view/1246 (ID_PAT: 22945) |
| Palavras-chave: | Agroecologia; Agricultura Familiar; Sustentabilidade; Espécies Arbóreas.
Agroecology; Family Farming; Sustainability; Arboreal Species. Agroecología; Agricultura Familiar; Sostenibilidad; Espécies Arbóreas. |
| Valor JCR (2017): | Não se aplica |
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| Plano de Ação: | 02.17.00.012.00.24 |
| Descrição: | SIMEONE, M. L. F.; PARRELLA, R. A. da C.; MAY, A.; SCHAFFERT, R. E. Produção e caracterização de pellets de sorgo biomassa. Brazilian Applied Science Review, Curitiba, v. 2, n. 5, p. 1682-1695, out./dez. 2018. |
| Parceria/partes: | Embrapa Milho e Sorgo (CNPMS), |
| Peso: | C |
| Conteúdo: | Resumo: O sorgo biomassa (Sorghum bicolor (L.) Moench) é uma cultura que apresenta um grande potencial como fonte de biomassa para energia em função de sua alta produtividade, tolerância à seca e por ser uma cultura mecanizável, sendo assim, uma alternativa de biomassa vegetal para ser utilizada em processos de densificação por peletização. O objetivo do trabalho foi produzir pellets de um híbrido de sorgo biomassa BRS716 e realizar sua caracterização de acordo com normas internacionais de qualidade para pellets.Os pelletsde sorgo biomassa foram obtidos em uma peletizadora de laboratório sem adição de qualquer aditivo, com diâmetro de 6 mm, comprimentos variados e foram caracterizados quanto a suas propriedades físico-químicas e mecânicas. Os pelletsobtidos apresentaram as características mínimas exigidas pela norma DIN EN 14961-6 e adequaram-se a todas as especificações da norma europeia de comercialização para pellets de produtos não madeireiros. Esses resultados demonstram o grande potencial do sorgo biomassa como uma cultura a ser integrada à cadeia de fornecimento de biomassa para geração de energia. |
| Observaçao: | ISSN 2595-3621. Acessível em http://www.brjd.com.br/index.php/BASR/article/view/478 (ID_PAT: 22492) |
| Palavras-chave: | Bioenergia; Biomassa vegetal; Produtos não madeireiros, BRS716. |
| Valor JCR (2017): | Não se aplica |