| Ultrastructure of spermatozoa of Bullacta exarata (philippi) and its significance on reproductive evolution and physio-ecological adaptation |
| |
| 作者姓名： | 应雪萍 杨万喜 姜乃澄 张永普 |
| |
| 作者单位： | School of Life and Environmental Science，Wenzhou Normal College，Wenzhou 325027，China，College of Life Sciences，Zhejiang University，Hangzhou 310029，China，College of Life Sciences，Zhejiang University，Hangzhou 310029，China，School of Life and Environmental Science，Wenzhou Normal College，Wenzhou 325027，China |
| |
| 基金项目： | Project supported by the Committee of Natural Science of Zhejiang Province (No. 398081)，Wenzhou Normal College (No.2001Y15), China |
| |
| 摘 要： | The morphology and ultrastructure of Bullacta exarata spermatozoa observed by light and transmission electron microscopy are presented in this paper. The spermatozoon is composed of head with a simple acrosomal complex and an elongated nucleus, and tail with a midpiece, principal piece and an end piece. The midpiece consists of a mitochondrial ring, and the principal piece is composed of axoneme and lateral fin. The structure of 5. exarata spermatozoa differs significantly from that of other gastropods, especially in the lateral fin and the principal piece, which was described scarcely before. A comparison is made between B. exarata and other gastropods, and its significance on reproductive evolution and physio-ecological adaptation is preliminarily discussed.
|
Ultrastructure of spermatozoa of Bullacta exarata (philippi) and its significance on reproductive evolution and physio-ecological adaptation |
| |
| YING Xue-ping,YANG Wan-xi,JIANG Nai-cheng,ZHANG Yong-pu.Ultrastructure of spermatozoa of Bullacta exarata (philippi) and its significance on reproductive evolution and physio-ecological adaptation[J].Journal of Zhejiang University Science,2004(10). |
| |
| Authors: | YING Xue-ping YANG Wan-xi JIANG Nai-cheng ZHANG Yong-pu |
| |
| Abstract: | The morphology and ultrastructure of Bullacta exarata spermatozoa observed by light and transmission electron microscopy are presented in this paper. The spermatozoon is composed of head with a simple acrosomal complex and an elongated nucleus, and tail with a midpiece, principal piece and an end piece. The midpiece consists of a mitochondrial ring, and the principal piece is composed of axoneme and lateral fin. The structure of 5. exarata spermatozoa differs significantly from that of other gastropods, especially in the lateral fin and the principal piece, which was described scarcely before. A comparison is made between B. exarata and other gastropods, and its significance on reproductive evolution and physio-ecological adaptation is preliminarily discussed. |
| |
| Keywords: | Bullacta exarata Spermatozoon Ultrastructure Evolution Physio-ecological adaptation |
| 本文献已被 CNKI 等数据库收录！ |
