Vitamin A deprivation and Drosophila photopigments

@article{Harris1977VitaminAD,
  title={Vitamin A deprivation and Drosophila photopigments},
  author={William A. Harris and Donald F. Ready and Edward D. Lipson and A. J. Hudspeth and William S. Stark},
  journal={Nature},
  year={1977},
  volume={266},
  pages={648-650}
}
VITAMIN A deprivation causes a profound reduction in visual sensitivity and photopigment concentration in the eyes of both vertebrates and invertebrates1,2. In vertebrates vitamin A deprivation results in degeneration of photoreceptor cells3 and decreases the number of intramembrane particles visualised in the disks of rod outer segments by freeze-fracture electron microscopy4. This and other evidence5 suggests that these particles represent rhodopsin molecules. Invertebrate photoreceptors have… CONTINUE READING

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