Sperm flagella: autonomous oscillations of the contractile system.

Science (New York, N.Y.) ·Vol. 175 ·No. 4019 ·1972-01-21 ·Pages 337-8

Lindemann CB, Rikmenspoel R

Abstract

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.

MeSH Terms

Acetylcholine/pharmacology Adenosine Diphosphate/pharmacology Adenosine Triphosphate/pharmacology Animals Calcium/pharmacology Cattle Cell Membrane Cell Movement Drosophila melanogaster Flagella/drug effects Male Microelectrodes Micromanipulation Microscopy Motion Pictures NAD/pharmacology Spermatozoa/cytology,physiology

Chemicals

NAD Adenosine Diphosphate Adenosine Triphosphate Acetylcholine Calcium

Authors & Affiliations

2 authors, click to expand affiliations / ORCID

Lindemann C B

Rikmenspoel R

Article Info

Journal

Science (New York, N.Y.)

Abbr.

Science

ISSN

0036-8075

DOI

10.1126/science.175.4019.337

Published

1972-01-21

Pages

337-8

Language

English

Region

United States

NLM ID

0404511

Subset

External Links

PubMed source DOI: 10.1126/science.175.4019.337 View journal details

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