鲢疯狂病病原体鲢碘泡虫营养体的超微结构观察

A STUDY OF THE UITRASTRUCTURE OF THE TROPHOZOITE OF MYXOBOLUS DRJAGINI ACHMEROV, 1954, THE PATHOGENIC AGENT FOR THE WHIRLING DISEASE OF HYPOPHTHALMICHTHYS MOLITRIX

本文报道鲢碘泡虫营养体的超微结构。叙述了两层结构的原生质膜,外质中的胞饮管道,各种长短的分枝管道、芽体和泡状体,双层核膜具有核孔,在胞饮管道的内层,有很多线粒体、高尔基器、内质网、溶酶体、核糖体、脂粒及各种大小和作用未明的颗粒、微丝等等,但未见中心粒。

This paper deals with the ultrastructure of the trophozoite of Myxobolus drjagini, the pathogenic agent for the whirling disease of Hypophthalmichthys molitrix. A large number of active trophozoites were taken from the cavity of the cranium of the diseased fish. They were then doubly fixed, embedded in Epon 812, sectioned and stained. Under electron microscope can be seen the plasmodial membrane of the trophozoite which is continuous with numerous pinocytic channels in the ectoplasm. The pinocytic channels are branched intp various lengths. The nucleus is delimited by two unit membranes with several nuclear pores. Interior to the zone of pinocytic channels is an outer zone of endoplasm rich in mitochondria. In the cytoplasm near the nucleus can be seen the Golgi apparatus, developed endoplasmic reticulum, microfibrils, microtubules, and an array of lipoid granules of unequal sizes. Functions of the lipoid granules are not known. The centrioles are not seen.