Calcium ion regulation of flagellar beat symmetry in reactivated sea urchin spermatozoa

Spermatozoa extracted with Triton X-100 solutions containing 0.005 M CaCl 2 have nearly symmetrical flagellar beat patterns and straight swimming paths when reactivated in ATP solutions containing low concentrations (10 −9 M) of free calcium ion. Increased calcium in the reactivation solutions, or o...

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Veröffentlicht in:	Biochemical and biophysical research communications 1974-06, Vol.58 (3), p.795-800
Hauptverfasser:	Brokaw, C.J., Josslin, R., Bobrow, Lynette
Format:	Artikel
Sprache:	eng
Schlagworte:	Adenosine Triphosphate Animals Calcium - pharmacology Cell Movement - drug effects Chelating Agents - pharmacology Edetic Acid - pharmacology Flagella - physiology Male Sea Urchins Spermatozoa - drug effects Spermatozoa - physiology Surface-Active Agents
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Zusammenfassung:	Spermatozoa extracted with Triton X-100 solutions containing 0.005 M CaCl 2 have nearly symmetrical flagellar beat patterns and straight swimming paths when reactivated in ATP solutions containing low concentrations (10 −9 M) of free calcium ion. Increased calcium in the reactivation solutions, or omission of calcium from the extraction solution, causes asymmetrical flagellar beating, and circular swimming paths.
ISSN:	0006-291X 1090-2104
DOI:	10.1016/S0006-291X(74)80487-0