Roles of extracellular Ca2+ and pH on motility and flagellar waveform parameters in sturgeon spermatozoa

Alavi S.M.H., Rodina M., Cosson J., Psenicka M., Linhart O.

Published date: July 2008
Volume: 32
Number: 2 suppl.
Pagination: 124-126
Publisher: Société Française d'Ichtyologie

Ca2+ had no effect on symmetric flagellar behavior at pH 8.0. Wavelength and amplitude decreased signifi- cantly as a function of time post sperm activation, but number of curvature and waves increased. High concentrations of Ca2+ (2.5 mM) at high alkalinity (pH > 10.0) induced both acrosome reaction and asymmetric flagellar behavior.

Keywords: Acrosome reaction - Asymmetry - Flagella
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