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July 30, 2010
Table of Contents
1 Introduction
Capacitation

Wikipedia

 

Capacitation is the final step in the maturation of Mammal|mammalian Sperm|spermatozoa and is required to render them competent to Fertilization|fertilize an oocyte.
This step is a biochemical event; the sperm move normally and look mature prior to capacitation.
Wiktionary:In vivo|In vivo this final step typically occurs after ejaculation, in the female Sex organ|reproductive tract.
Wiktionary:In vitro|In vitro, capacitation can occur in sperm that have either undergone ejaculation or have been extracted from the epididymis.
Non-mammalian spermatozoa do not require this capacitation step and are ready to fertilize an oocyte immediately after release from the male.

Historically, the term "capacitation" has evolved in meaning and this should be taken into account when consulting sources.

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  • cortical reaction

  • Acrosome reaction


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  • Beaudin, Stacey; Kipta, Donna; and Orr, Annamarie. (October 9, 1996). http://www.ucalgary.ca/UofC/eduweb/virtualembryo/capacitation.html Current research into sperm capacitation: An Essay on Visconti, et al. Development 121: 1129-1150 (1995). Verified availability 2005-04-06.

  • Visconti, Pablo E.; Bailey, Janice L.; Moore, Grace D.; Pan, Dieyun; Olds-Clarke, Patricia; and Kopf, Gregory S. (1995). Capacitation of mouse spermatozoa: I. Correlation between the capacitation state and protein tyrosine phosphorylation. Development 121, 1129-1137. PMID 7743926. <small>full article text available on-line</small>


Category:Reproductive system
Category:Germ cells
Category:Andrology
cellbio-stub

de:Kapazitation
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Capacitation".


Last Modified:   2005-12-19


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