Artículos de revistas
Antifungal chalcones and new caffeic acid esters from Zuccagnia punctata acting against soybean infecting fungi
Registro en:
Journal of agricultural and food chemistry 52 (11): 3297 -3300
0021-8561
Autor
Svetaz, L.
Tapia, A.
Lopez, S.N.
Furlan, R.L.E.
Petenatti, E.
Pioli, R.
Schmeda-Hirschmann, G.
Zacchino, S.A.
Institución
Resumen
Schmeda-Hirschmann, G. Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales. The crude methanolic extract of Zuccagnia punctata was active toward the fungal pathogens of soybean Phomopsis longicolla and Colletotrichum truncatum. Assay guided fractionation led to the isolation of two chalcones, one flavanone and a new caffeoyl ester derivative as the compounds responsible for the antifungal activity. Another new caffeoyl ester derivative was isolated from the antifungal chloroform extract but proved to be inactive against the soybean infecting fungi up to 50 g/mL