INVESTIGADORES
SAMPIETRO Diego Alejandro
congresos y reuniones científicas
Título:
Role of cuticular alkylresorcinols in resistance against Fusarium verticillioides
Autor/es:
SAMPIETRO, D. A.; VATTUONE, M. A.; FAUGUEL, C. M.; PRESELLO, D. A.; CATALÁN, C. A.
Lugar:
Tafí del Valle (Tucumán)
Reunión:
Congreso; XXV Annual Scientific Meeting of Tucuman Biology Association; 2008
Institución organizadora:
Tucuman Biology Association
Resumen:
The aim of this work was to establish if alkylresorcinols (ARs) from grain cuticles are a resistance factor against fumonisin accumulation in maize germoplasm of Argentina. Grains of landraces (ARZM03018, 04014 and 05040), breeding populations (Leales 25 and pob D), commercial hybrids (Cargill 350 and Syngenta Chaltén) and inbreds (L4637, 6856-11x4674-1 and 1186x1196 LP915x3125) were assayed. Whole grains were inoculated with microconidia of Fusarium verticilliodes and placed at 28 °C and 90% RH. After 7 d, fumonisin content was determined. ARs were analyzed by the method of Tluscik. Highest contents of ARs were detected in ARZM 03018 and Leales 25. 6856-11x4674-1 and 1186x1196 LP915x3125 had the lowest levels. The remaining genotypes had intermediate levels of ARs. A positive correlation between AR content and fumonisin accumulation was observed suggesting that ARs are resistant factors against fumonisin accumulation.
