Evidence for a sensitising pigment in fly photoreceptors

Nature. 1977 Sep 29;269(5627):386-90. doi: 10.1038/269386a0.


Many photoreceptor cells in invertebrates have a dual-peak spectral sensitivity. Evidence is presented that in fly photoreceptors the ultraviolet peak is due to a photostable pigment that absorbs light quanta and transfers the energy to the blue-absorbing visual pigment.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Diptera / physiology*
  • Energy Transfer
  • Models, Biological
  • Photoreceptor Cells / physiology*
  • Retinal Pigments / physiology*
  • Rhodopsin / physiology
  • Spectrophotometry, Ultraviolet
  • Vision, Ocular
  • Vitamin A Deficiency / physiopathology


  • Retinal Pigments
  • Rhodopsin