| 黄颡鱼精子入卵的扫描电镜观察 |
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| 引用本文： | 王永玲,杨彩根,宋学宏,王建伟.黄颡鱼精子入卵的扫描电镜观察[J].淡水渔业,2007,37(4):41-44. |
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| 作者姓名： | 王永玲 杨彩根 宋学宏 王建伟 |
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| 作者单位： | 苏州大学生命科学学院,江苏苏州,215123 |
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| 摘 要： | 应用扫描电镜观察了黄颡鱼(Pelteobagrus fulvidraco)成熟卵和精子的形态、卵子对精子的应答反应、受精孔的数量与形态、受精方式与过程。结果显示:黄颡鱼精子为鞭毛型,头部近圆球形,无顶体,单尾;卵为圆球形,卵膜表面多嵴,且有15～16条宽度不同的小沟;卵表面仅有1个受精孔,精孔管口内径约2.8μm。黄颡鱼为单精受精,受精后30 s内完成精子入卵过程。
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| 关 键 词： | 黄颡鱼(Pelteobagrus fulvidraco) 扫描电镜 受精 精孔管 |
| 文章编号： | 1000-6907-（2007）04-0041-04 |
| 修稿时间： | 2006-10-15 |
Observation on Sperm Penetration of Pelteobagrus fulvidraco by Scanning Electronic Microscopy |
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| Wang Yong-ling,Yang Cai-gen,Song Xue-hong,Wang Jian-wei.Observation on Sperm Penetration of Pelteobagrus fulvidraco by Scanning Electronic Microscopy[J].Freshwater Fisheries,2007,37(4):41-44. |
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| Authors: | Wang Yong-ling Yang Cai-gen Song Xue-hong Wang Jian-wei |
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| Institution: | Life Sciences College, Soochow University, Suzhou, Jiangsu 215123 |
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| Abstract: | The shape of mature ovum and sperm,response of ovum to sperm,quantity and shape of fertilization cone,a way and process of fertilization in Pelteobagrus fulvidraco were observed by the Scanning Electronic Microscopy.The results showed that the sperm of Pelteobagrus fulvidraco was flagellum form,with single flagellum and a sphaeroid head without acrosome.Ovum was also sphaeroid,with only one fertilizer pore.There were 15~16 canaliculi of different width on the surface of ovum.Only one sperm could enter the ovum and the penetration lasted within 30 seconds. |
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| Keywords: | Pelteobagrus fulvidraco scanning electronic microscopy fertilization fertilizer pore |
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