[Role of the epiphysis in the migration of retinal epithelial pigment during unilateral photic stimulation in Salmo irideus].
Unilateral exposure of dark-adapted fishes indicates that the exposed eye is only partly in a light-adapted state in so far as the position of the epithelial pigment and cones is concerned. This does not occur in epiphysectomized fishes indicating a possible role of the epiphysis. On the basis of available evidence, the nature of the epiphysis role is envisaged and a suggestion made that melatonin, whose synthesis is related to dark, may play a role in this phenomenon.
D000818:Animals; D003624:Darkness; D006801:Humans; D008027:Light; D010775:Photic Stimulation; D010870:Pineal Gland / Q000502:physiology*; D012168:Retinal Pigments / Q000378:metabolism*; D012487:Salmonidae / Q000502:physiology*; D014337:Trout / Q000502:physiology*
D012168:Retinal Pigments
Rôle de l'épiphyse dans la migration du pigment épithélial rétinien lors d'une stimulation photique unilatérale chez Salmo irideus