A novel function for a carotenoid: Astaxanthin used as a polarizer for visual signalling in a mantis shrimp

Tsyr Huei Chiou, Allen R. Place, Roy L. Caldwell, N. Justin Marshall, Thomas W. Cronin

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Biological signals based on color patterns are well known, but some animals communicate by producing patterns of polarized light. Known biological polarizers are all based on physical interactions with light such as birefringence, differential reflection or scattering. We describe a novel biological polarizer in a marine crustacean based on linear dichroism of a carotenoid molecule. The red-colored, dichroic ketocarotenoid pigment astaxanthin is deposited in the antennal scale of a stomatopod crustacean, Odontodactylus scyllarus. Positive correlation between partial polarization and the presence of astaxanthin indicates that the antennal scale polarizes light with astaxanthin. Both the optical properties and the fine structure of the polarizationally active cuticle suggest that the dipole axes of the astaxanthin molecules are oriented nearly normal to the surface of the antennal scale. While dichroic retinoids are used as visual pigment chromophores to absorb and detect polarized light, this is the first demonstration of the use of a carotenoid to produce a polarizing signal. By using the intrinsic dichroism of the carotenoid molecule and orienting the molecule in tissue, nature has engineered a previously undescribed form of biological polarizer.

Original languageEnglish
Pages (from-to)584-589
Number of pages6
JournalJournal of Experimental Biology
Volume215
Issue number4
DOIs
Publication statusPublished - 2012 Feb 1

Fingerprint

Mantis
astaxanthin
Carotenoids
carotenoid
carotenoids
shrimp
Light
polarized light
crustacean
pigment
Crustacea
pigments
Birefringence
birefringence
Retinal Pigments
retinoids
optical properties
Retinoids
cuticle
optical property

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Physiology
  • Aquatic Science
  • Animal Science and Zoology
  • Molecular Biology
  • Insect Science

Cite this

Chiou, Tsyr Huei ; Place, Allen R. ; Caldwell, Roy L. ; Marshall, N. Justin ; Cronin, Thomas W. / A novel function for a carotenoid : Astaxanthin used as a polarizer for visual signalling in a mantis shrimp. In: Journal of Experimental Biology. 2012 ; Vol. 215, No. 4. pp. 584-589.
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A novel function for a carotenoid : Astaxanthin used as a polarizer for visual signalling in a mantis shrimp. / Chiou, Tsyr Huei; Place, Allen R.; Caldwell, Roy L.; Marshall, N. Justin; Cronin, Thomas W.

In: Journal of Experimental Biology, Vol. 215, No. 4, 01.02.2012, p. 584-589.

Research output: Contribution to journalArticle

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