| 太平洋牡蛎配子和精子入卵的扫描电镜观察及胚胎发育的初步研究 |
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| 引用本文： | 田传远,梁英,王如才,任素莲,于瑞海,赵厚均.太平洋牡蛎配子和精子入卵的扫描电镜观察及胚胎发育的初步研究[J].海洋科学进展,2000(2). |
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| 作者姓名： | 田传远 梁英 王如才 任素莲 于瑞海 赵厚均 |
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| 作者单位： | 青岛海洋大学水产学院!青岛266003(田传远，梁英，王如才，任素莲，于瑞海)，山东省渔业技术推广站!济南250013(赵厚均) |
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| 基金项目： | 国家“8 63”计划资助项目!( 863 81 9 0 1 0 1 )，国家“攀登B”计划资助项目! (PD B6 3 ) |
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| 摘 要： | 通过扫描电镜观察 ,太平洋牡蛎精子由头部、中段和尾段组成。精子全长约 2 1 .6μm ,尾段长约 1 8.2 μm ,末端观察到“针眼”样结构 ;头部最大处的直径约 2 .6μm ;中段直径约 1 .1 μm ;未成熟精子尾段中部出现膨大 ,该处直径约 0 .3μm。卵呈梨形 ;卵的直径约为 41 .9μm。卵表面有微绒毛组成的皱折结构 ,可见卵黄膜孔。卵质收回时 ,在卵表面卵柄处可见明显的树枝状结构。受精后 ,受精卵表面的卵黄膜剥离处可见较多数量的皮质小泡。在水温2 1 .2～ 2 3.5℃ ,精卵混合 34min时 ,释时出第 1极体 ;1h2 2min时 ,放出第 2极体 ;2 1h55min时 ,胚胎发育至初期D形幼虫。
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| 关 键 词： | 太平洋牡蛎 精子 卵 精子入卵 胚胎发育 扫描电镜 |
Observation on the Gametes and Sperm Penetration with Seanning Electron Microscope and a Preliminary Study of the Embryonic Development in Pacific Oyster (Crassostrea gigas) |
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| TIAN Chuanyuan ,LIANG Ying ,WANG Rucai ,REN Sulian ,YU Reihai ,Zhao Houjun College of Fisheries,Ocean University of Qingdao,Qingdao ,China Fisheries Technical Advice Station of Shandong Province,Jinan ,Chi.Observation on the Gametes and Sperm Penetration with Seanning Electron Microscope and a Preliminary Study of the Embryonic Development in Pacific Oyster (Crassostrea gigas)[J].Advances in Marine Science,2000(2). |
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| Authors: | TIAN Chuanyuan LIANG Ying WANG Rucai REN Sulian YU Reihai Zhao Houjun College of Fisheries Ocean University of Qingdao Qingdao China Fisheries Technical Advice Station of Shandong Province Jinan Chi |
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| Institution: | TIAN Chuanyuan 1,LIANG Ying 1,WANG Rucai 1,REN Sulian 1,YU Reihai 1,Zhao Houjun 2 College of Fisheries,Ocean University of Qingdao,Qingdao 266003,China Fisheries Technical Advice Station of Shandong Province,Jinan 250018,Chi |
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| Abstract: | |
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| Keywords: | Crassostrea gigas sperm egg sperm penetration embryonic development scanning electron microscope |
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