FAST BLOCK TO POLYSPERMY IN SEA-URCHIN EGGS IS ELECTRICALLY MEDIATED
FAST BLOCK TO POLYSPERMY IN SEA-URCHIN EGGS IS ELECTRICALLY MEDIATED
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DOI：
10.1038/261068a0
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发表时间：
1976-01-01
期刊：
影响因子：
64.8
通讯作者：
JAFFE, LA
中科院分区：
文献类型：
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作者：
JAFFE, LA
海胆卵中多精受精的预防分两个步骤完成：“快速”阻断，在受精精子进入后几秒钟内发生，以及“慢速”阻断，与皮质反应相关（将参考文献 1-4 与参考文献 5 和 6 进行比较）。这里提出的结果证实了快速阻滞的存在，并证明它是由伴随受精精子进入的卵质膜的电去极化引起的。
THE prevention of polyspermy in sea urchin eggs is accomplished in two steps: a “fast” block, occurring within a few seconds of the entry of the fertilising sperm, and a “slow” block, associated with the cortical reaction (compare refs 1–4 with 5 and 6). Results presented here confirm the existence of the fast block and demonstrate that it is caused by the electrical depolarisation of the egg plasma membrane that accompanies the entrance of the fertilising sperm.