[The effect of light on glycogen turnover in the retina of the honeybee drone (author's transl)].
The retina of the compound eye of the drone (Apis mellifera) comprises two distinct classes of cells: the photoreceptors and the glial cells. The photoreceptors contain mitochondriae and the photopigment (rhodopsin). The glial cells do not contain mitochondriae, but large amounts of glycogen granules. Light stimulation causes intraglial glycogen metabolism to accelerate. Since glial cells are not directly excitable by light, it is deduced that the absorption of light by rhodopsin must somehow cause a signal to pass the glial cells to activate the glycogen metabolism.
D000818:Animals; D001516:Bees / Q000502:physiology*; D006003:Glycogen / Q000378:metabolism*; D008297:Male; D008954:Models, Biological; D009457:Neuroglia / Q000502:physiology; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000502:physiology; D012160:Retina / Q000502:physiology*; D012243:Rhodopsin / Q000378:metabolism
D006003:Glycogen; D012243:Rhodopsin
L'effet de la stimulation photique sur le métabolisme du glycogène intrarétinien.