文章摘要
王瑞霞,张毓人,傅仓生,李振兰,吴宜章,张福顺,郝宏京.鲂鱼受精早期精子入卵的扫描电子显微镜观察[J].水产学报,1982,6(4):313~320
鲂鱼受精早期精子入卵的扫描电子显微镜观察
THE OBSERYATION ON THE INITIAL FERTILIZATION OF FRESHW ATER BREAM BY ELECTRONIC SCANNING MICROSCOPE
  
DOI:
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英文关键词: 
基金项目:
作者单位
王瑞霞 上海水产学院
 
张毓人 上海水产学院
 
傅仓生 中国农业科学院原子能利用研究所 
李振兰 中国农业科学院原子能利用研究所 
吴宜章 中国农业科学院原子能利用研究所 
张福顺 中国农业科学院原子能利用研究所 
郝宏京 中国农业科学院原子能利用研究所 
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中文摘要:
      用光学显微镜观察精子进入活卵是相当困难的。作者用扫描电子显微镜初步揭示了鲂鱼受精早期精子入卵的程序,讨论了精子入卵的路径、时间和时限,并初步分析了单精入卵的机制。
英文摘要:
      In generally , to make sure of sperm enter into lii ing egg zs considerable coif-ficult. V he got eeellent obserations by use of the elot.roni scanning microsenpe.he results pan be summarised as follows: 1.intured egg he bream 3legaLobru·mrc G-minrrbds Riehardsun is snrru-ended hr the thick chorion. There is : Panel-Iike depression on the chorion nearbythe nnim,l pole. L miorupyle is at tha haftzn of tho depression. L nicrupylar tubr,5 dia.n ieier, c;onnels the ruicrupyle into the protoplasmic gerruirzal disL. I heaerosomles sperm cont:zct vth tbc egg rytaplasm through this nlicropylar tube. Inzddition, tliere are numerous infinitesimal pares arc found all over the surface ofrh.)rion. 2 .he spna oI the breanz enter into tho egg instantly, and all mioropylar t.nhesare sealed by the fertilised ping ithin 30 seconds after insemizicztion, the sherzn entrzsthc cgl; and cxst the flagellum. 3. tllthough only one sperm is alloned to enter into tho egg not·lolly,but agreat quntity of super auizzerary sperms is eoessfrry to raise the rate of ert ilition.Hone-er, more than one sperm enters into the egg, the number of chronosrunill he riscd than the normal axxd cause abortion early enahrogeneaia, thus aferfed plug is Formed at the inner openhg of the micropylar tube.
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