冷休克诱导海胆卵中的肌动蛋白重组和多精受精。

Cold shock induces actin reorganization and polyspermy in sea urchin eggs.

作者信息

Santella L, Monroy A

机构信息

Stazione Zoologica, Villa Comunale, Naples, Italy.

出版信息

J Exp Zool. 1989 Nov;252(2):183-9. doi: 10.1002/jez.1402520210.

DOI:10.1002/jez.1402520210

PMID:2600561

Abstract

The effect of low temperature on the cortical actin system and polyspermy in sea urchin eggs was studied. Eggs cold-shocked at 3 degrees C for 1 hour formed a cortical system of polymerized actin and were polyspermic when fertilized. These effects were completely reversible following a 7-20 minute recovery period at room temperature. The present data raises the possibility that actin, or components of the egg cytoskeleton, regulate sperm entry in sea urchin eggs.

摘要

研究了低温对海胆卵皮质肌动蛋白系统和多精受精的影响。在3摄氏度下冷休克1小时的卵形成了聚合肌动蛋白的皮质系统，受精时会发生多精受精。在室温下恢复7 - 20分钟后，这些影响完全可逆。目前的数据增加了一种可能性，即肌动蛋白或卵细胞质骨架的成分调节海胆卵中的精子进入。