首页 | 本学科首页   官方微博 | 高级检索  
     


An increase in the influx of calcium ions into cilia induces thigmotaxis inParamecium caudatum
Authors:K. Iwatsuki  T. Hirano
Affiliation:(1) Department of Biology, Faculty of Education, Kagawa University, Takamatsu, 760 Kagawa, (Japan)
Abstract:
To understand the role of calcium ions in thigmotaxis inParamecium caudatum, the effects of caffeine, ruthenium red and lanthanum (LaCl3) on thigmotaxis were examined. Thigmotaxis in the CNR mutant, which lacks voltage-dependent Ca2+-channels in the ciliary membrane, was also examined. Ruthenium red and LaCl3 suppressed thigmotaxis inP. caudatum, while caffeine enhanced it. The CNR mutant showed hardly any thigmotaxis. It can be thought that an increase in Ca2+ influx and the intraciliary concentration of Ca2+ ions induces thigmotaxis inParamecium.
Keywords:Paramecium caudatum  thigmotaxis  Ja-value  CNR  calcium  ruthenium red  LaCl3  caffeine
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号