Inhibition of temperature-induced spermatogenic proliferation by a brain factor in hibernating Helix aspersa (Mollusca).
Ablation of the brain from hibernating Helix aspersa maintained at 25 degrees C causes a significant increase in the proliferation of male cells in the gonad, whereas the ablation of the optic tentacles has no effect. The brain, therefore, produces a factor which specifically inhibits the multiplication of spermatogonia and spermatocytes.
Gomot
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Laboratoire de Zoologie et Embryologie, URA CNRS 687, Faculté des Sciences, Besançon, France.
Gomot
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D000818:Animals; D001921:Brain / Q000502:physiology*; D002454:Cell Differentiation; D002455:Cell Division; D006372:Helix, Snails / Q000502:physiology*; D006605:Hibernation; D008297:Male; D013091:Spermatogenesis; D013094:Spermatozoa / Q000166:cytology; D013696:Temperature