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. 1976 Nov-Dec;31(11-12):763.
doi: 10.1515/znc-1976-11-1230.

Rhodopsin particles in the photoreceptor membrane of an insect

C B Boschek, K Hamdorf

Rhodopsin particles in the photoreceptor membrane of an insect

C B Boschek et al. Z Naturforsch C Biosci. 1976 Nov-Dec.

Abstract

Electron-microscopic examination of freeze-fractured fly retinae has revealed the presence of particles, 80 to 100 A in diameter, on the photoreceptor membrane. Flies which were raised on a vitamin-A deficient diet show a substantial reduction in the density of such particles. The reduction in particle density is in agreement with the reduction in visual-pigment concentration as measured spectrophotometrically for these flies. These results suggest that the particles are identical with molecules of the visual pigment, rhodopsin.

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