钒酸盐、镁离子和电流注入对刺入的公牛精子硬度的影响。

Effects of vanadate, Mg2+ and electric current injection on the stiffness of impaled bull spermatozoa.

作者信息

Rikmenspoel R, Orris S E, Isles C A

出版信息

J Cell Sci. 1981 Oct;51:53-61. doi: 10.1242/jcs.51.1.53.

DOI:10.1242/jcs.51.1.53

PMID:7320088

Abstract

Measurements were made of the rigor stiffness of impaled bull sperm flagella. Vanadate-free ATP was found to have a stronger plasticizing action than vanadate-contaminated ATP. Trace amounts of Mg2+ were found to be necessary to relieve the rigor condition by ATP. During the injection of negative electric current into the sperm head, the flagella stiffened, presumably by depletion of Mg2+ from the flagellar interior.

摘要

对穿刺的公牛精子鞭毛的强直硬度进行了测量。发现无钒酸盐的ATP比受钒酸盐污染的ATP具有更强的增塑作用。发现微量的Mg2+对于ATP缓解强直状态是必要的。在向精子头部注入负电流期间，鞭毛变硬，推测是由于鞭毛内部的Mg2+耗尽。