长薄鳅的精巢发育和精子发生  

The Testis Development and Spermatogenesis of Leptobotia elongate Bleeker

作　　者：王志坚[1] 殷江霞[1] 张耀光[1] 

机构地区：[1]西南大学生命科学学院,三峡库区生态环境教育部重点实验室,水产科学重庆市市级重点实验室,重庆400715

出　　处：《淡水渔业》2009年第1期3-9,共7页Freshwater Fisheries

基　　金：国家支撑计划项目(2006BAD03B09)资助

摘　　要：应用组织学和超微结构方法研究了长薄鳅(Leptobotia elongate Bleeker)精巢发育和精子发生。结果显示:长薄鳅精巢一对,其发育过程可划分为6个时期,Ⅰ期性腺肉眼无法分辨雌雄。组织学结构显示长薄鳅的精巢属于小叶型,根据发育过程中细胞的大小、核仁多少、细胞核和细胞质浓缩的程度将精子发生划分为6个时相。超微结构下精原细胞分为初级精原细胞和次级精原细胞,成熟精子分头部、中片和尾部3个部分,尾部有侧鳍,具"9+3"式微管结构。According to the study on testis development and spermatogenesis of Leptobotia elongate Bleeker by histology and uhrastructure method. The result shows that： there is only one pair of testes, and the development can be divided into 6 periods in this fish, and the gonad in period I can not be distinguished at all by naked eyes. The histological structure shows the lobule testis in Leptobotia elongate Bleeker, and the spermatogenesis is divided into 6 phases based on the size, nucleolus number, the degree of nucleus and cytoplasm condensation. While under the uhrastructure, the spermatogoni- um can be distinguished as primary spermatogonium and secondery spermatogonium; in addition, the mature sperm has a head, a midpeice and a tail, and the ＂9 ＋3＂ canaliculus tail has side fin in it.

关 键 词：长薄鳅(Leptobotia elongate Bleeker) 精巢发育 精子发生 “9+3”式微管结构 

分 类 号：S966.39[农业科学—水产养殖] S917[农业科学—水产科学]