An ultraviolet absorbing pigment causes a narrow-band violet receptor and a single-peaked green receptor in the eye of the butterfly Papilio

K Arikawa*, S Mizuno, DGW Scholten, M Kinoshita, T Seki, J Kitamoto, DG Stavenga

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

72 Citations (Scopus)
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Abstract

The distal photoreceptors in the tiered retina of Papilio exhibit different spectral sensitivities. There are at least two types of short-wavelength sensitive receptors: an ultraviolet receptor with a normal spectral shape and a violet receptor with a very narrow spectral bandwidth. Furthermore, a blue receptor, a double-peaked green receptor and a single-peaked green receptor exist. The violet receptor and single-peaked green receptor are only found in ommatidia that fluoresce under ultraviolet illumination. About 28% of the ommatidia in the ventral half of the retina exhibit the UV-induced fluorescence. The fluorescence originates from an ultraviolet-absorbing pigment, located in the most distal 70 mu m of the ommatidium, that acts as an absorption filter, both for a UV visual pigment, causing the narrow spectral sensitivity of the violet receptor, and for a green visual pigment, causing a single-peaked green receptor. (C) 1998 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalVision Research
Volume39
Issue number1
DOIs
Publication statusPublished - Jan-1999

Keywords

  • spectral sensitivity
  • filtering
  • retinol
  • Papilio xuthus
  • COMPOUND EYE
  • SENSITIVITY
  • RHODOPSINS
  • RETINA

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