Intracellular recordings of spectral sensitivities in stomatopods

A comparison across species

Hanne H. Thoen, Tsyr-Huei Chiou, N. Justin Marshall

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Stomatopods (mantis shrimps) possess one of the most complex eyes in the world with photoreceptors detecting up to 12 different colors. It is not yet understood why stomatopods have almost four times the number of spectral photoreceptors compared with most other animals. It has, however, been suggested that these seemingly redundant photoreceptors could encode color through a new mechanism. Here we compare the spectral sensitivities across five species of stomatopods within the superfamily Gonodactyloidea using intracellular electrophysiological recordings. The results show that the spectral sensitivities across species of stomatopods are remarkably similar apart from some variation in the long-wavelength receptors. We relate these results to spectral sensitivity estimates previously obtained using microspectrophotometry and discuss the variation in the spectral sensitivity maxima (kmax) of the long-wavelength receptors in regard to the previous findings that stomatopods are able to tune their spectral sensitivities according to their respective light environment. We further discuss the similarities of the spectral sensitivities across species of stomatopods in regard to how color information might be processed by their visual systems.

Original languageEnglish
Pages (from-to)1117-1129
Number of pages13
JournalIntegrative and Comparative Biology
Volume57
Issue number5
DOIs
Publication statusPublished - 2017 Jan 1

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photoreceptors
wavelengths
color
Mantis
receptors
shrimp
eyes
animals

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology
  • Plant Science

Cite this

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abstract = "Stomatopods (mantis shrimps) possess one of the most complex eyes in the world with photoreceptors detecting up to 12 different colors. It is not yet understood why stomatopods have almost four times the number of spectral photoreceptors compared with most other animals. It has, however, been suggested that these seemingly redundant photoreceptors could encode color through a new mechanism. Here we compare the spectral sensitivities across five species of stomatopods within the superfamily Gonodactyloidea using intracellular electrophysiological recordings. The results show that the spectral sensitivities across species of stomatopods are remarkably similar apart from some variation in the long-wavelength receptors. We relate these results to spectral sensitivity estimates previously obtained using microspectrophotometry and discuss the variation in the spectral sensitivity maxima (kmax) of the long-wavelength receptors in regard to the previous findings that stomatopods are able to tune their spectral sensitivities according to their respective light environment. We further discuss the similarities of the spectral sensitivities across species of stomatopods in regard to how color information might be processed by their visual systems.",
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Intracellular recordings of spectral sensitivities in stomatopods : A comparison across species. / Thoen, Hanne H.; Chiou, Tsyr-Huei; Justin Marshall, N.

In: Integrative and Comparative Biology, Vol. 57, No. 5, 01.01.2017, p. 1117-1129.

Research output: Contribution to journalArticle

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