Temperature dependence of sperm-egg fusion and post-fusion events in hamster fertilization

The Journal of Experimental Zoology
Y Hirao, R Yanagimachi

Abstract

The effects of temperature (4--37 degrees C) on sperm-egg fusion and the post-fusion events were studied. At 4--10 degrees C, acrosome-reacted spermatozoa bound to egg plasma membranes, but could not fuse with them. At 25 degrees C or above, both binding and fusion took place. The post-fusion events could occur over a broad temperature range (4--37 degrees C) but the events progressed faster with increasing temperature. An abnormal development of egg pronucleus, possibly due to an incomplete functioning of the meiotic spindle mechanism, was observed in eggs inseminated at 37 degrees C and cultured at 25 degrees C.

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Citations

Jun 1, 1990·The Journal of Experimental Zoology·T A Parkening
Sep 1, 1987·Developmental Biology·A CurciF Mangia
Jan 1, 1983·The International Journal of Biochemistry·A A Farooqui
May 18, 2007·Reproduction in Domestic Animals = Zuchthygiene·S SugiyamaM Young
Sep 13, 2016·Annual Review of Genetics·Enrica Bianchi, Gavin J Wright
Feb 16, 2019·Molecular Reproduction and Development·Raffaele Boni

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