CAJ | 학술논문

对日本纺织娘 Mecopoda nipponensis 的精子超微结构进行了透射电镜观察.结果表明:其顶体复合体侧生于细胞核上且包裹了核顶端的部分;细胞核致密,横切面多为新月形或半月形;2蚕豆形副体位于9+9+2轴丝的两侧;线粒体衍生体横切面为椭圆形,其基质几乎完全晶状化;线粒体衍生体一侧的2扁平膜池横切面近S形;轴丝与线粒体衍生体之间有3条连接带,其中中央的一条呈环状;在有些尾部横切面中,质膜之内又有一双层膜把尾部的细胞器围绕起来.
대일본방직낭 Mecopoda nipponensis 적정자초미결구진행료투사전경관찰.결과표명:기정체복합체측생우세포핵상차포과료핵정단적부분;세포핵치밀,횡절면다위신월형혹반월형;2잠두형부체위우9+9+2축사적량측;선립체연생체횡절면위타원형,기기질궤호완전정상화;선립체연생체일측적2편평막지횡절면근S형;축사여선립체연생체지간유3조련접대,기중중앙적일조정배상;재유사미부횡절면중,질막지내우유일쌍층막파미부적세포기위요기래.
This paper describes the spermatozoon ultrastructure in Mecopoda nipponensis (De Haan). Spermatozoon of this species were examined by transmission electron microscopy after double fixation of live material in glutaric-aldehyde and osmic acid. Its acrosomal complex lies to the side of the flat, dense nucleus and partially embraces it. Two broad bean-shaped accessory bodies are located laterally to the axoneme, which is of a typical 9+9+2 pattern. Two almost completely crystallized mitochondrial derivatives are oval in cross-section. There are three connecting bands between mitochondrial derivatives and axoneme. Two flat membranous cisterns close to mitochondrial derivatives are S-shaped in cross-section. A character peculiar to this species, an additional bi-layer membrane, appears around organelles of the tail in some cross-sections.