拮抗细菌B44对食用菌致病木霉的抑制作用  

Antifungal activity of B44 against Trichoderma in mushroom

作　　者：孟文文[1] 徐正银 黎金锋[1,2] 姚晓华[1,2] 刘斌[1,2] 

机构地区：[1]广西大学农学院,广西南宁530005 [2]广西大学食用菌研究所,广西南宁530005

出　　处：《广东农业科学》2015年第19期73-76,F0003,共5页Guangdong Agricultural Sciences

基　　金：广西科学研究与技术开发项目(桂科攻10100013-1;桂科攻1222012-1B);国家现代农业食用菌产业技术体系广西创新团队项目

摘　　要：以3株食用菌致病木霉为目标菌株,利用热处理过的发酵液研究拮抗细菌B44对3株木霉的抑菌作用。通过对3株木霉菌丝生长、产孢量以及孢子萌发的研究,结果发现拮抗细菌B44对3株木霉均有较强的抑制作用,随着细菌发酵液浓度的提高,其抑制作用也逐渐增强;在细菌发酵液浓度为40%时,对3株木霉的抑制作用较强,其抑制率分别为79.74%、91.19%、73.37%,而对两株平菇的抑制作用相对较弱,抑制率为33.80%和55.46%。因此拮抗细菌B44具有潜在的生防应用前景。Taking antagonistic bacterium with significant antagonism against Trichoderma as material, the antifungal activity of heat-treated liquid fermentation of B44 was analyzed. The results showed that the antagonistic bacterium B44 had strong inhibitory effect on mycelium growth, sporulation and spore germination of the three strains of Trichoderma. With the concentration of bacterial fermentation increasing, its inhibition gradually increased. When the concentration of bacterial fermentation was 40%, the inhibition rate to the three strains of Trichoderma were 79.74%, 91.19%, and 73.37% respectively, while the inhibition rate to the two mushrooms were 33.80% and 55.46% respectively. It was suggested that strain B44 had the potential biological control in mushroom cultivation.

关 键 词：食用菌 木霉 拮抗细菌 抑菌作用 

分 类 号：S482.292[农业科学—农药学]