spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Nakaoka, Y.
Right arrow Articles by Oosawa, F.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Nakaoka, Y.
Right arrow Articles by Oosawa, F.

Journal of Cell Science, Vol 65, Issue 1 223-231, Copyright © 1984 by Company of Biologists

JOURNAL ARTICLES

Ca2+-dependent regulation of beat frequency of cilia in Paramecium

Y Nakaoka, H Tanaka and F Oosawa

Triton-extracted models of Paramecium cells prepared in the presence of Mg2+ and EGTA showed Ca2+ sensitivity not only in the direction of beat but also in the beat frequency of cilia. The beat frequency increased over a range of concentration of Ca2+ from 2 X 10(-7) to 4 X 10(-7) M, in which the model swam forwards. The frequency increased also above 10(-6)M-Ca2+, in which the model swam backwards. The increase in frequency was inhibited by calmodulin antagonists. Intracellular injection of a Ca2+ buffer giving a free Ca2+ concentration of 2 X 10(-7) to 5 X 10(-7) M in intact cells induced an increase in the beat frequency. Therefore, it is very likely that the beat frequency of cilia is regulated by the intracellular concentration of Ca2+.


This article has been cited by other articles:


Home page
 J BiochemHome page
H. Ueno, Y. Iwataki, and O. Numata
Homologues of Radial Spoke Head Proteins Interact with Ca2+/Calmodulin in Tetrahymena Cilia
J. Biochem., October 1, 2006; 140(4): 525 - 533.
[Abstract] [Full Text] [PDF]

Home page
 J. Exp. Biol.Home page
S. A. Doran, R. Koss, C. H. Tran, K. J. Christopher, W. J. Gallin, and J. I. Goldberg
Effect of serotonin on ciliary beating and intracellular calcium concentration in identified populations of embryonic ciliary cells
J. Exp. Biol., March 15, 2004; 207(8): 1415 - 1429.
[Abstract] [Full Text] [PDF]

Home page
 J. Cell Sci.Home page
C. Stock, H. K. Gronlien, R. D. Allen, and Y. Naitoh
Osmoregulation in Paramecium: in situ ion gradients permit water to cascade through the cytosol to the contractile vacuole
J. Cell Sci., January 6, 2002; 115(11): 2339 - 2348.
[Abstract] [Full Text] [PDF]

Home page
 J. Cell Sci.Home page
H Bannai, M Yoshimura, K Takahashi, and C Shingyoji
Calcium regulation of microtubule sliding in reactivated sea urchin sperm flagella
J. Cell Sci., January 3, 2000; 113(5): 831 - 839.
[Abstract] [PDF]

Home page
 J. Cell Sci.Home page
N Klauke and H Plattner
Imaging of Ca2+ transients induced in Paramecium cells by a polyamine secretagogue
J. Cell Sci., January 4, 1997; 110(8): 975 - 983.
[Abstract] [PDF]


© The Company of Biologists Ltd 1984