RESUMEN

Scopoletin (7-hydroxy-6-methoxy coumarin) which inhibited the conidial germination of Corynespora cassiicola was isolated from the uninfected mature leaves of Hevea brasiliensis. Scopoletin was not detected in uninfected immature rubber leaves. The immature leaves produced scopoletin after being infected with C. cassiicola. The concentration of scopoletin in infected leaves was higher than in uninfected mature leaves. Scopoletin also inhibited the conidial germination of other fungal pathogens of H. brasiliensis. However, no correlation was observed between scopoletin accumulation and clonal resistance.

Asunto(s)

Ascomicetos/efectos de los fármacos , Hevea/metabolismo , Hevea/microbiología , Hojas de la Planta/química , Escopoletina/aislamiento & purificación , Escopoletina/farmacología , Antifúngicos/aislamiento & purificación , Antifúngicos/metabolismo , Antifúngicos/farmacología , Ascomicetos/crecimiento & desarrollo , Hevea/química , Enfermedades de las Plantas/microbiología , Hojas de la Planta/metabolismo , Hojas de la Planta/microbiología , Escopoletina/metabolismo