MISC

2005年1月

Possible involvement of mechanosensitive Ca2+ channels of plasma membrane in mechanoperception in Chara

PLANT AND CELL PHYSIOLOGY
  • T Kaneko
  • ,
  • C Saito
  • ,
  • T Shimmen
  • ,
  • M Kikuyama

46
1
開始ページ
130
終了ページ
135
記述言語
英語
掲載種別
DOI
10.1093/pcp/pci004
出版者・発行元
OXFORD UNIV PRESS

When an internodal cell of Chara corallina was stimulated with a mechanical pulse of various amplitudes lasting for 0.1 s (mechanical stimulus), the cell generated a receptor potential, which was highly dependent not only on the strength of the stimulus but also on the extracellular Cl- concentration. Extracellular Ca2+ was indispensable for generating receptor potential, since removal of Ca2+ reversibly inhibited generation of the receptor potential. The cytoplasmic Ca2+ level transiently rose upon mechanical stimulation. The stronger the mechanical stimulus, the larger was the increase in the cytoplasmic level of Ca2+. It is proposed that the first step of receptor potential is an activation of mechanosensitive Ca2+ channels at the plasma membrane.

Web of Science ® 被引用回数 : 17

リンク情報
DOI
https://doi.org/10.1093/pcp/pci004
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000226807600013&DestApp=WOS_CPL

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