PAT 2026 - Artigo em Periódico Indexado
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1 |
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| Plano de Ação: |
10.24.00.040.00.02 |
| Descrição: |
SILVA, I. S. O.; TERAO, D.; SILVA, A. M. ; MELO, W. L. B.; FRACAROLLI, J. A.; MAIA, A. de H. N.; FERREIRA, E. de S.; BIASOTO, A. C. T. Sustainable and innovative postharvest management of anthracnose disease in guavas through modulated UV-C light treatment. Horticulturae, v. 11, n. 11, article 1351, 2025. |
| Parceria/partes: |
Embrapa Instrumentação (CNPDIA), UFBA - Universidade Federal da Bahia, UNICAMP - Universidade Estadual de Campinas, |
| Peso: |
A definir |
| Conteúdo: |
Abstract: Anthracnose, caused by the Colletotrichum sp. gloeosporioides complex, severely affects guava quality, highlighting the need for sustainable alternatives to synthetic postharvest fungicides. This study is the first to evaluate modulated UV-C radiation as an innovative approach to controlling postharvest diseases and extending guava shelf-life. The modulation frequency significantly influenced mycelial growth and conidial germination, following a quadratic model (R2 = 0.98), with maximum efficacy at ~30 Hz, reducing germination to 5.3 × 104 CFU per plate. In vivo, the combinations of 0.99 kJ m−2/30 Hz and 0.66 kJ m−2/45 Hz inhibited anthracnose incidence and severity. Most physicochemical parameters remained unaffected after seven days of storage. However, treated fruits showed a higher hue angle (h) and lower a*, indicating the maintenance of shades closer to green due to slower chlorophyll degradation, and firmness was preserved, suggesting delayed ripening. Modulated UV-C also significantly reduced the respiration rate, lowering the climacteric peak. These findings demonstrate that anthracnose control depends on the modulation frequency, with 0.99 kJ m−2/30 Hz being particularly effective. Modulated UV-C radiation represents a promising, sustainable, and effective strategy for improving guava postharvest quality and shelf-life. |
| Observaçao: |
ISSN: 2311-7524. DOI: https://doi.org/10.3390/horticulturae11111351 (ID_PAT: 37222) |
| Palavras-chave: |
Psidium guajava L.; Modulated ultraviolet radiation; Colletotrichum spp.; Fruit shelf-life. |
| Valor JCR : |
A definir |
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2 |
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| Plano de Ação: |
30.19.90.012.00.02 |
| Descrição: |
ABREU, M. G. P. de; MELO, L. L. de; CARVALHO, V. R. de; MORIYA, L. M.; HALFELD-VIEIRA, B. A. Biocontrol potential of stem blight in macadamia by Bacillus spp. in plantlets with different scion-rootstock combinations. BioControl (2025). https://doi.org/10.1007/s10526-025-10359-5 [Online first: 21 Oct 2025] |
| Parceria/partes: |
QueenNut Macadâmia - Queen Nut Indústria e Comércio de Alimentos Ltda., UNESP - Universidade Estadual Paulista Julio de Mesquita Filho, |
| Peso: |
A definir |
| Conteúdo: |
Abstract: Fungi from the Botryosphaeriaceae family are causal agents of stem blight and affect macadamia at all developmental stages, being particularly lethal to plantlets. This study evaluated the effectiveness of Bacillus spp. isolates in controlling the disease in macadamia plantlets and the susceptibility of macadamia varieties to Lasiodiplodia pseudotheobromae (Botryosphaeriales: Botryosphaeriaceae), considering rootstock-scion combinations. Three macadamia scion varieties (IAC 4-12B, HAES 333, and HAES 741) were inoculated with three L. pseudotheobromae isolates. The rootstock (HAES 10–14) remained the same. Bacillus spp. isolates were selected for their antagonistic properties and tested for disease control in plantlets. Disease severity varied depending on the rootstock-scion combination and the L. pseudotheobromae isolate. Bacillus velezensis (CMAA1935 and CMAA1936) and B. subtilis (CMAA1934) (Bacillales: Bacillaceae) reduced disease severity, but their efficacy depended on the scion variety. Our findings indicate that resistance to stem blight in grafted plantlets varies with the L. pseudotheobromae isolate and the scion genotype, also influencing disease severity in the rootstock. These results suggest that Bacillus spp. may serve as a complementary tool for managing stem blight, particularly when resistance varies with scion-rootstock combinations. |
| Observaçao: |
ISSN: 1386-6141, 1573-8248 (online). DOI: https://doi.org/10.1007/s10526-025-10359-5 (ID_PAT: 37135) |
| Palavras-chave: |
Bacillales; Bacillaceae; Biological control; Botryosphaeriales; Botryosphaeriaceae; L. pseudotheobromae; Resistance. |
| Valor JCR : |
A definir |