Direct effects of visible and UVA light on pigment migration in erythrophores of Nile tilapia

Pigment Cell Research
Masako SatoNoriko Oshima

Abstract

Erythrophores derived from Nile tilapia (Oreochromis niloticus) are sensitive to visible light of defined wavelengths in primary culture in the same manner as erythrophores in the skin. Cultured erythrophores aggregate their pigment in response to light with peak wavelengths near 400 or 600 nm, while dispersion is caused by light near 500 nm. In this study, we report that ultraviolet A (UVA) with a peak wavelength near 365 nm also induces pigment aggregation in erythrophores in the skin and in primary culture. The responses of erythrophores in the skin or in culture depend on the light intensity, although the photo-sensitivity differs among individual cells. From the results, we conclude that the action of visible light and UVA light on tilapia erythrophores is direct, and that multiple types of visual pigments may coexist in individual erythrophores.

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Citations

May 18, 2006·Pigment Cell Research·Darren W LoganIan J Jackson
Aug 18, 2006·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Letícia Hyoo Jung ImAna Maria de Lauro Castrucci
Aug 28, 2020·The Journal of Experimental Biology·Alexis Y DollionSandrine Meylan
Nov 22, 2020·General and Comparative Endocrinology·Paula G VissioTomás H Delgadin
Jan 15, 2014·Biology Open·Shyh-Chi ChenCraig W Hawryshyn

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