苏芸金杆菌与核型多角体病毒对家蚕的联合致病作用  

Combination Pathogenicity of Bacillus thuringiensis and Nuclear Polyhedrosis Virus to Silkworms

作　　者：刘广生[1] 牟志美[1] 陈春花[1] 李季生[1] 马双艳 

机构地区：[1]山东农业大学林学院,泰安271018 [2]山东省龙口市果树站,龙口265700

出　　处：《蚕业科学》2005年第2期195-198,共4页ACTA SERICOLOGICA SINICA

基　　金：国家茧丝绸风险基金(第四批)发展性项目(2002-2005)

摘　　要：初步研究了苏芸金杆菌(Bacillusthuringiensis,B.t)和家蚕核型多角体病毒(Bombyxmorinuclearpolyhedrosisvirus,BmNPV)对家蚕的联合致病作用。结果表明,BmNPV可增强B.t的毒力,增效作用显著;3.6×104、1.2×105mL-1B.t可增强BmNPV的毒力;与单独感染相比,B.t与BmNPV联合感染可缩短LT500.1～2.1d,加速家蚕死亡。Combination pathogenicity of Bacillus thuringiensis and Bombyx mori nuclear polyhedrosis virus to silkworms was investigated preliminarily, the results showed that BmNPV could enhance virulence of B.t remarkably, and so did 3 6×10 4 mL^-1 B.t and 1 2×10 5 mL^-1 B.t to BmNPV, and compared with single infection, combination infection of B.t and BmNPV could make silkworms die quickly, which’s showed by the decreased LT 50 ranging from 0 1 days to 2 1 days.

关 键 词：苏芸金杆菌 家蚕核型多角体病毒 联合致病 家蚕 

分 类 号：S884.51[农业科学—特种经济动物饲养]