Abstract:

The inhibition of chitosan on Alternaria alternata in vitro was initially investigated. Results showed that 6.0mg/mL chitosan inhibited spore germination of A. alternata by 79.54%; inhibited the radial growth by 85.89%. Chitosan of different concentrations induced morphological changes of the hyphae, and when the concentration reached to 3.0mg/mL, the hyphal morphology began to change. And the hyphae changed from long and thin to bead-like, and also partly swelled.