Summary
Ablation of the brain from hibernatingHelix aspersa maintained at 25°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.
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Gomot, P., Gomot, L. Inhibition of temperature-induced spermatogenic proliferation by a brain factor in hibernatingHelix aspersa (Mollusca). Experientia 45, 349–351 (1989). https://doi.org/10.1007/BF01957474
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DOI: https://doi.org/10.1007/BF01957474