Abstract
When the three kinds of trichothecene mycotoxins, T-2 toxin, deoxynivalenol and nivalenol, were applied to the surface of sliced sweet potato root tissues, the various antipathogenic furano-sesquiterpenes such as ipomeamaronol were accumulated in those tissues like in the black rot fungus (Ceratocystis fambriata)-infected ones. However, each mycotoxin induced the different amounts of furano-sesquiterpenes. T-2 toxin induced the most amount of furano-sesquiterpenes and nivalenol induced the least amount. The three kinds of trichothecene mycotoxins induced furano-sesquiterpenes at the different composition, though ipomeamaronol was commonly accumulated as a principal furano-sesquiterpene.