ANTIFUNGAL ACTIVITY OF ANACARDIACEAE EXTRACTS ON EAR ROT FUNGI

ARISTIMUÑO FICOSECO, M. E.; SAMPIETRO, D. A .; VATTUONE, M.A.; CATALÁN, C.A.N.

Tafi del Valle

Congreso; XXVIII Annual scientific meeting of the Tucuman biology association; 2011

Tucuman biology association

The aim of th is work was to quantify the antifungal activity of leaf extracts from Schinopsis on Fusarium species causing ear rot disease. Leaves from S. haenkeana and S. lorentzii were extracted with dichloromethane and ethyl acetate. The extracts were evaporated to dryness. The dry powders were dissolved in methanol and filtrated. The fungicidal activity of the methanolic extracts was evaluated by the liquid broth microdilution method. Inhibitory concentration of 50% (IC50) was calculated. Leaf extracts from S. lorentzii had IC50s of 42 ug/rnl (dichloromethane, F. verticillioides and F. graminearum), 100 ug/ml (ethyl acetate, F.graminearum) and 35.7 ug/rnl (ethyl acetate, F. verticillioides). Extracts from Schinopsis haenkeana were less inhibitory offungal growth. The iso lation and structural elucidation of the antifungals from the dichloromethane extract of S. lorentzii are under way.