枯草芽孢杆菌SB-24对尖孢镰刀菌拮抗机理  

Antagonistic Mechanism of Bacillus subtilis Strain SB- 24 on Fusarium oxysporum

作　　者：谢丽华[1] 高虹[1] 陈明丽[1] 冯涛[1] 

机构地区：[1]黑龙江省农垦科学院植物保护研究所,黑龙江哈尔滨150038

出　　处：《土壤与作物》2015年第2期91-95,共5页Soils and Crops

基　　金：黑龙江省科技厅对外科技合作资助项目(WB10B103)

摘　　要：通过SB-24菌株对尖孢镰刀菌菌丝生长的抑制、菌丝形态的影响及对孢子萌发的抑制,SB-24分泌水解酶能力的研究,探索SB-24对尖孢镰刀菌的抑制机理。结果表明:SB-24对尖孢镰刀菌菌丝的抑制作用是通过菌体及其产生的拮抗物质,分泌水解酶(蛋白酶和纤维素酶)共同作用的结果;SB-24对尖孢镰刀菌孢子的抑制作用主要是其产生拮抗物质作用的结果。In this study, the inhibition of strain SB - 24 on the growth of Fusarium oxysporum mycelium and spore, mycelium form of Fusarium oxysporum and its capability of secreting hydrolytic enzymes were examined. The results showed that strain SB - 24 inhibited the growth of Fusarium oxysporum mycelium, which was mostly due to the integration of production of antibiotic material and hydrolytic enzymes including proteineous enzyme and cellulase. Antagonistic effect of strain SB - 24 on Fusarium oxysporum spores is in nature the production of antibiotic material.

关 键 词：枯草芽孢杆菌 尖孢镰刀菌 拮抗机理 

分 类 号：S476.19[农业科学—农业昆虫与害虫防治]