Isolation and identification of the antifungal compounds accumulating in the induced resistance response of carrot root slices to Botrytis cinerea

Abstract

Resistance to invasive levels of spore suspensions of Botrytis cinerea was induced in freshly-cut slices of carrot roots using heat-killed conidia for 6 h at 23 °C. Control slices remained susceptible at 6 h, but were resistant to invasion at 24 h (wound healing). Germination of live spores on induced slices was significantly inhibited (P The results are discussed particularly in relation to the activity of falcarinol and to reports of the related compound falcarindiol in carrot root tissues.