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本文对白鲢疯狂病的病原体———鲢碘泡虫孢子的超微结构进行了观察 ,发现其孢子由孢壳、极囊及孢质组成。孢壳由两壳瓣组成 ,壳瓣在缝脊处加厚 ,两者通过微管连接 ;孢子具有两个大小不等的梨形极囊 ,极丝 6 7圈沿极囊纵轴螺旋缠绕在基质周围 ,极囊的前端处有极囊帽 ,其宽而平部分罩住极囊前端 ,此处极囊壁具有极丝排出管 ;极囊壁由“暗 亮 暗”三层组成 ,外层周围环绕一层均匀的电子致密物质 ;孢质中具有两个细胞核 ,还有线粒体、内质网、嗜碘泡等细胞器 ,大量的小球状电子致密颗粒集中在孢质及极囊周围
In this paper, the ultrastructure of the spore of silver carperella was observed in the pathogen of silver carp crazy disease. The results showed that the spore consists of spore shell, polar capsule and spore. The spore shell is composed of two shell flaps, the shell flap is thickened at the seam ridge, and the two are connected by microtubules. The spore has two pear-shaped polar sacs of different sizes, with 67 polar coils spirally wound along the longitudinal axis of the polar sac Around the matrix, there is a polar cap at the front end of the polar sac, which wide and flat partially covers the front of the polar sac, where the polar wall has a polar excretory tube. The polar wall is composed of three layers of “dark and dark” Surrounded by a uniform layer of electron dense material; spore has two nuclei, as well as mitochondria, endoplasmic reticulum, iodophores and other organelles, a large number of small spherical electron dense particles concentrated in the spore and around the pole capsule