摘要
研究比较了从四川种茧育家蚕分离的大型微孢子虫ＳＣＭ６（Ｎｏｓｅｍａｓｐ．）和小型微孢子虫ＳＣＭ７（Ｅｎｄｏｒｅｔｉｃｕｌａｔｕｓｂｏｍｂｙｃｉｓｎｏｖ）与家蚕微粒子（Ｎｏｓｅｍａｂｏｍｂｙｃｉｓ）对蚕的致病力和胚胎传染性。结果表明，２龄起蚕经口添食梯度浓度的微粒子和微孢子虫后，两种微孢子虫对蚕的致病力弱于家蚕微粒子。母峨感染后的卵中，ＳＣＭ７无胚胎传染，ＳＣＭ６具有弱度胚胎传染，其胚传率为（１．４４±０．７５）％；家蚕微粒子胚传率达（１９．６５±８．２５）％，对子代也具有较强的胚传致病性。
A comparison was made of SCM 6 ( Nosema sp.) and SCM 7 ( Endoreticulatus bombycis nov.) isolated from silkworm is Sichuan with Nosema bombycis for their pathogenicity and transovarial transmission in silkworm.Peroral inoculation of 10 3～10 5 spores/individual to second instar larvae demonstrated that SCM 6 and SCM 7 had lower pathogenicity to the silkwom than N.bombycis .In the eggs laid by infected female moths no transovarial transmission of SCM 7 was observed,SCM 6 had a low transovarial transmission rate (1.44±0.75%),and N.bombycis showed a high transovarial transmission rate (19.65±8.35%) and pathogenicity to the progeny.
出处
《西南农业大学学报（自然科学版）》
CSCD
1998年第2期95-99,共5页
Journal of Southwest Agricultural University
基金
国家"九五"科技攻关项目
关键词
微孢子虫
家蚕
胚胎
致病性
传染
microsporidia
bombyx mori
embryo
/pathogenicity
transmission
