| 日本沼虾受精卵核行为的初步研究 |
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| 引用本文： | 卢建平.日本沼虾受精卵核行为的初步研究[J].海洋学研究,2001,19(4):17-20. |
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| 作者姓名： | 卢建平 |
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| 作者单位： | 浙江大学,生命科学学院,浙江,杭州,310012 |
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| 摘 要： | 研究了日本沼虾受精卵的核行为。结果表明 :日本沼虾在 2 1℃水箱中培养时 ,雌虾交配产卵后 0 .5 h,受精卵内仅出现 1个雌原核 ,未见雄原核 ;产卵后 1 .5 h,卵内同时出现雌原核和雄原核 ;产卵后 3 .5 h,雌原核和雄原核接近 ;产卵后 4h,雌原核和雄原核联合 ,形成合子核 ;产卵后 4.5 h,开始第一次有丝分裂 ;产卵后 7h,形成 2个核 ;产卵后 8h,形成 4个核
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| 关 键 词： | 日本沼虾 受精卵 细胞核 |
| 文章编号： | 1001-909X(2001)04-0017-04 |
| 修稿时间： | 1999年7月20日 |
Nucleus behaviour in fertilized eggs of the fresh-water prawn Macrobrachium nipponense |
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| LU,Jian-ping.Nucleus behaviour in fertilized eggs of the fresh-water prawn Macrobrachium nipponense[J].Journal of Marine Sciences,2001,19(4):17-20. |
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| Authors: | LU Jian-ping |
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| Abstract: | Studies on the chronological changes of the nucleus in fertilized egg of the fresh-water prawn, Macrobrachium nipponense, were followed. Female pronucleus was formed by 0.5 h after spawning, and male pronucleus by 1.5 h. The female and male pronuclei migrated towards each other and were in proximity by 3.5 h after spawing. Pronuclear association was completed by 4 h after spawning, and the zygote nucleus entered the first mitotic division soon. The first and second mitotic division were completed by 7h and 8 h after spawning resulting in a 2-nucleated and a 4-nucleated zygote, respectively. |
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| Keywords: | Macrobrachium nipponense fertilized egg nucleus |
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