内生菌73a防治棉花黄萎病机理  

Mechanism of Controlling Cotton Verticillium Wilt with Entophytic Bacterium 73a

作　　者：吴蔼民[1] 顾本康[1] 傅正擎[1] 蒋正峰[1] 

机构地区：[1]江苏省农业科学院植物保护研究所,江苏南京210014

出　　处：《江苏农业学报》2002年第1期48-51,共4页Jiangsu Journal of Agricultural Sciences

基　　金：国家"九五"攻关子专题 (96 0 0 5 0 1 0 4 2 ) ;江苏省"九五"攻关项目 (BE993 14 ) ;江苏省应用基础项目 (BJ980 2 4)

摘　　要：通过在棉株 4叶期针刺接种内生菌 73a ,测定其体内POD、SOD酶活性 ,结果显示 :棉株体内的POD、SOD酶活性较对照 (不接种 )明显上升 ,可见 ,内生菌 73a诱导了POD、SOD酶活性的提高。挑战接种 (先接内生菌再接棉花黄萎病菌 )结果 ,棉株体内的POD、SOD酶活性均增高 ,其中 ,接种落叶型黄萎病菌棉株体内酶活性高于接种非落叶型菌棉株 ;抗病品种“常抗棉”体内酶活性高于同期感病品种“泗棉 3号”。The activities of POD and SOD in the cotton plants inoculated with entophytic bacteriun 73a at 4 leaf stage were higher than those of control (no inoculation) which was induced by entophytic bacteria 73a.The results of challenging inoculation(first entophytic bacterium 73a inoculated,then Verticillium dahliae kleb inoculated)indicated that:①the activities of POD and SOD were raised;②the activities of POD and SOD in cotton plants inoculated with defoliating type Verticillium dahliae were higher than those inoculated with non defoliating type Verticillium dahliae ;③activities of POD and SOD in resistant cultivar'Changkangmian'were higher than those in susceptible cultivar'Simian 3'.

关 键 词：内生菌 棉花 黄萎病 防治机理 生物防治 过氧化物酶 超氧化岐化酶 

分 类 号：S435.621.2[农业科学—农业昆虫与害虫防治] S476[农业科学—植物保护]