The occurrence characteristics and economic impact of tobacco bacterial wilt were introduced;the action mechanism of controlling tobacco bacterial wilt with Bacillus subtilis in Shiyan was analyzed,including antagonism,biofilm competition,antibacterial effect,lytic effect,in ducing plant disease resistance;the application prospect of Bacillus subtilis in agriculture production was also forecasted.%介绍了烟草青枯病发生特点及经济影响;分析了枯草芽孢杆菌防治烟草青枯病的作用机理,包括拮抗作用、生物膜竞争、抗菌作用、细胞溶解酶作用、诱导植物抗病性;展望了枯草芽孢杆菌在农业生产上的应用前景.
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