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The fate of sperm middle-piece mitochondria in the rat egg

✍ Scribed by Szollosi, Daniel

Publisher: John Wiley and Sons
Year: 1965
Tongue: English
Weight: 1006 KB
Volume: 159
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1401590309

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✦ Synopsis

Mitochondria of rat sperm tail middle-piece remain associated with the flagellum after penetration of the egg by the spermatozoon and during the time of the f i s t cleavage. During two-to four-cell stages the middle-piece mitochondria gradually swell while they separate in large clusters from the axial filament. The swelling of the male mitochondrial elements becomes more extreme during the cleavage divisions, and they finally seem to disintegrate. Thus all mitochondria found in the developing rat embryo may originate from the egg.

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