The stiffness of the flagella of impaled bull sperm.

Biophysical journal ·Vol. 13 ·No. 5 ·1973-05-00 ·Pages 437-48

Lindemann CB, Rudd WG, Rikmenspoel R

Abstract

The elastic rigidity (stiffness) of impaled motionless bull sperm flagella has been determined by a manipulatory technique which permitted direct analytical treatment of the experimental system. The effects of external ATP and ADP were measured. It was found that ATP acts as a plasticizing agent, while ADP does not. The stiffness measured for flagella in a medium without ATP was 15 times greater than the value measured with 10 mM ATP present. The rigor-like stiffness measured with no ATP present is reversible with ATP and seems to be correlated to a transition in the state of the contractile system.

MeSH Terms

Adenosine Diphosphate/pharmacology Adenosine Triphosphate/pharmacology Animals Cattle Cyanides/pharmacology Flagella/drug effects,physiology Kinetics Male Mathematics Spermatozoa/drug effects,physiology

Chemicals

Cyanides Adenosine Diphosphate Adenosine Triphosphate

Authors & Affiliations

3 authors, click to expand affiliations / ORCID

Lindemann C B

Rudd W G

Rikmenspoel R

References (8)

8 references, click to expand

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Adenosine triphosphate-induced sliding of tubules in trypsin-treated flagella of sea-urchin sperm.
Proc Natl Acad Sci U S A. 1971 Dec;68(12):3092-6 PMID: 5289252
Flexural rigidity and elastic constant of cilia.
J Exp Biol. 1972 Apr;56(2):459-67 PMID: 5022843
Sperm flagellar motion maintained by ADP.
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Mechanism of relaxation in extracted muscle fibers.
Am J Physiol. 1951 Oct;167(1):276-83 PMID: 14885497
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Article Info

Journal

Biophysical journal

Abbr.

Biophys J

ISSN

0006-3495

DOI

10.1016/S0006-3495(73)85997-1

Published

1973-05-00

Pages

437-48

Language

English

Region

United States

NLM ID

0370626

PMCID

PMC1484302

Subset

External Links

PubMed source DOI: 10.1016/S0006-3495(73)85997-1 PMC Full Text View journal details

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The stiffness of the flagella of impaled bull sperm.

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