家蚕病原微孢子虫SCM_8的分离及其致病性研究  

ISOLATION OF A PATRHOGENIC MICROSPORIDIUM SCM 8 FROM SILKWORM AND ITS PATHOGENICITY STUDY

作　　者：潘敏慧[1] 万永继[1] 祝仁英[1] 

机构地区：[1]西南农业大学蚕桑丝绸学院农业部蚕桑学重点实验室,重庆400716

出　　处：《西南农业大学学报（自然科学版）》2000年第3期196-198,共3页Journal of Southwest Agricultural University

基　　金："九五"国家重点科技攻关项目! (96 - 616 - 0 2 - 0 3)

摘　　要：从四川省种茧育家蚕分离出的一种小型微孢子虫SCM8,仅感染寄生家蚕的中肠上皮组织 ;孢子卵圆形 ,大小2 .82± 0 .2 0× 2 .1 9± 0 .1 3μm。孢子致病力较弱 ,感染中量 (IC50 )为 1 .2 9× 1 0 5粒 /ml;病程 1 2天以上。病理组织学和胚种传染的研究表明 。Pathogenic microsporidia named SCM 8 were isolated from the silkworm larvae for egg production in Sichuan in 1997. In subsequent identification, this pathogen was found to infect the epithelial cells of the midgut only. The fresh spores were oval in shape and 2.82±0.20× 2.19 ±0.13μm in size.The pathogenicity of the spores was weak, with IC 50 being 1.29×10 5 spores/ml.The course of pathogenesis lasted 12 days or more. SCM 8 did not seem to have the capacity of transmission by egg.

关 键 词：家蚕 分离 微孢子虫 SMC8 致病性 形态 

分 类 号：S884.21[农业科学—特种经济动物饲养]