芽孢杆菌41B-1对黄萎病菌的抑菌机理

Bacillus amyloliquefaciens is one of most important biological control agents, its metabolites has antifungal, antivirus, resistance of mycoplasma and antitumor activity, also can be used as elicitor induced plant defense response. The isolate can not only restrain Verticillium dahliae in vitro germination, can also induce pathogen V1070 outbreak of active oxygen in the cells, cell swelling and missing cell wall integrity cause of cracking and cell death. Cracking cells and degradation of cell wall can stimulates the cotton plant immune responses as pathogen associated molecular patterns (PAMP). iturins treatment can induced host defense responses, which provides an effective way for the prevention and control of cotton verticillium wilt.