以苹果腐烂病菌等14种植物病原菌为供试菌,研究了枯草芽孢杆菌(Bacillus subtilis(Ehrenberg)Cohn)XM16菌株及其代谢物的抑菌活性。结果表明,该菌对供试植物病原菌均表现出强烈的拮抗作用,其代谢物对供试的苹果炭疽病菌等11种病原菌具有较强的抑制作用。分泌物滤液和粗蛋白的抑菌试验进一步证实了XM16菌株抗生物质的存在,这表明XM16在培养过程中的确产生了某种对病原真菌具有强抑菌活性的抗生物质。 Fourteen kinds of pathogenic fungi, such as apple rot, were used as tested bacteria to study the antibacterial activity of Bacillus subtilis (strain Ehrenberg) XM16 and its metabolites. The results showed that the bacteria showed strong antagonism against the pathogen of the tested plants and its metabolites had a strong inhibitory effect on the 11 pathogens such as apple anthracnose tested. Antibacterial tests of secretions filtrate and crude protein further confirmed the presence of antimicrobial activity of XM16 strain, which indicates that XM16 did produce certain antimicrobial substance with strong antibacterial activity against pathogenic fungi during culture.