海芋凝集素对几种鳞翅目昆虫的毒杀活性  

Toxic Activity of Alocasia macrorrhiza Lectin to Several Lepidopteran Insects

作　　者：潘科[1] 黄炳球[1] 侯学文[2] 

机构地区：[1]华南农业大学资源环境学院,广东广州510642 [2]华南农业大学生命科学学院,广东广州510642

出　　处：《安徽农业科学》2007年第11期3291-3293,共3页Journal of Anhui Agricultural Sciences

基　　金：广东省自然科学基金资助(000643)

摘　　要：采用饲喂、口腔灌注、腹足注射和喷雾等方法,比较了海芋凝集素粗品对3种鳞翅目昆虫菜粉蝶、亚洲玉米螟和斜纹夜蛾幼虫的毒杀活性。结果表明:海芋凝集素粗品对受试昆虫有一定的胃毒和触杀活性,其中海芋块茎凝集素粗品口腔灌注菜粉蝶幼虫的胃毒活性最高,5%海芋块茎凝集素粗品处理后5、6 d,菜粉蝶幼虫的死亡率分别为62.5%和75.0%,表明海芋凝集素对昆虫的胃毒是其主要作用方式。Toxic effects of crude Alocasia macrorrhiza lectin （AML） on larvae of cabbage butterfly （Pieris rapae L.）, asiatic corn borer （Ostrinia furnocalis Guenea） and tobacco cutworm （Spodoptera litura Fab.） were studied by feeding, mouthparts infusion, pleopoda injection and potter spraying methods, respectively. The results showed that AML had certain stomach toxic, contact toxic to the above tested lepidopteran insects. The stomach toxic effect of AML on the larvae of cabbage butterfly was the strongest, of which the corrected mortality was 62.5% and 75% after infusing by AML 5d and 6d later, respectively. The results showed that the stomach toxic was the main toxic mode of AML to lepidopteran pests.

关 键 词：海芋凝集素 菜粉蝶 斜纹夜蛾 亚洲玉米螟 毒杀活性 

分 类 号：S482.3[农业科学—农药学]