Parietalectomy does not affect testicular growth in photoregulating lizards.
The testicular response of male anoles maintained at a constant 32 degrees C was similar in both parietalectomized and sham-parietalectomized lizards exposed to either constant light (40 lux intensity) or to photic gradients (40-300 lux). The results support the hypothesis that the acceleration of gonadal growth in parietalectomized lizards noted by others depends on the ability of lizards to self-regulate exposure to thermal, but not photic, stimuli.
Underwood
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D000818:Animals; D006358:Hot Temperature; D008027:Light; D008116:Lizards / Q000502:physiology*; D008297:Male; D010507:Periodicity; D010786:Photoreceptor Cells / Q000502:physiology; D013091:Spermatogenesis; D013737:Testis / Q000254:growth & development