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Science 21 January 1972:
Vol. 175. no. 4019, pp. 337 - 338
DOI: 10.1126/science.175.4019.337
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Articles

Sperm Flagella: Autonomous Oscillations of the Contractile System

Charles B. Lindemann 1 and Robert Rikmenspoel 1

1 Department of Biological Sciences, State University of New York, Albany 12203

Bull sperm are deactivated, losing all motility, when they are impaled or dissected with a microprobe. Loss of activity is due to the creation of a hole or break in the cell membrane. Uncoordinated contractile activity is retained if external adenosine triphosphate and adenosine diphosphate are present. When these substances are in the medium, coordinated wave motion can be initiated in impaled or dissected sperm by bending a segment of the flagellum.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Marine fish spermatozoa: racing ephemeral swimmers.
J. Cosson, A.-L. Groison, M. Suquet, C. Fauvel, C. Dreanno, and R. Billard (2008)
Reproduction 136, 277-294
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Science. ISSN 0036-8075 (print), 1095-9203 (online)