| Texto completo | |
| Autor(es): |
Aguiar, Maria Clara Santana
;
de Freitas, Marcelo Mueller
;
de Freitas, Carlos Alessandro
;
Boica-Junior, Arlindo Leal
;
Carneiro, Renato Lajarim
;
Forim, Moacir Rossi
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ACS AGRICULTURAL SCIENCE & TECHNOLOGY; v. N/A, p. 12-pg., 2025-06-10. |
| Resumo | |
The impact of plant breeding on flavonoid-mediated biotic resistance is unclear. In this study, we analyzed ten soybean cultivars subjected to herbivory by Spodoptera cosmioides using ultrahigh performance liquid chromatography-quadrupole time-of-flight-mass spectrometry (UHPLC-qTOF-MS) and chemometrics. The PI227682 cultivar exhibited elevated levels of O-methylated flavonoids, which correlated with strong resistance. In contrast, transgenic cultivars showed higher levels of glycosylated flavonoids, which attracted herbivores. Multivariate analysis revealed cultivar-specific metabolic reprogramming and identified formononetin and isorhamnetin glycosides as resistance biomarkers. Our findings highlight a trade-off: breeding for productivity may inadvertently reduce defense metabolites, thereby increasing pest susceptibility. This study provides actionable insights for developing flavonoid-enhanced cultivars, reducing reliance on pesticides, and promoting sustainable agriculture. Integrating metabolomics into breeding programs could bridge the gap between yield and biotic resilience, thereby addressing critical food security and environmental challenges. (AU) | |
| Processo FAPESP: | 14/50918-7 - INCT 2014: para o Controle Biorracional de Insetos Pragas e Fitopatógenos |
| Beneficiário: | Maria Fátima das Graças Fernandes da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 21/11878-3 - Busca de moléculas bioativas para controle de insetos pragas através da análise metabolômica comparativa entre genótipos de interesse comercial |
| Beneficiário: | Moacir Rossi Forim |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |