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The influence of chromatic background on the photosensitivity of tilapia erythrophores
Non-mammalian vertebrates and invertebrates use extraretinal photoreceptors to detect light and perform diverse non-image-forming functions. Compared to well-studied visual systems, the effect of ambient light conditions on photosensory systems of extraretinal photoreceptors is poorly understood. Ch...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Company of Biologists
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3925314/ https://www.ncbi.nlm.nih.gov/pubmed/24414206 http://dx.doi.org/10.1242/bio.20146742 |
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author | Chen, Shyh-Chi Hornsby, Mark A. W. Robertson, R. Meldrum Hawryshyn, Craig W. |
author_facet | Chen, Shyh-Chi Hornsby, Mark A. W. Robertson, R. Meldrum Hawryshyn, Craig W. |
author_sort | Chen, Shyh-Chi |
collection | PubMed |
description | Non-mammalian vertebrates and invertebrates use extraretinal photoreceptors to detect light and perform diverse non-image-forming functions. Compared to well-studied visual systems, the effect of ambient light conditions on photosensory systems of extraretinal photoreceptors is poorly understood. Chromatophores are photosensitive dermal pigment cells that play an important role in the formation of body color patterns to fit the surrounding environment. Here, we used tilapia erythrophores to investigate the relationship between environmental light and chromatophore photoresponses. All erythrophores from three spectral conditions aggregated their pigment granules in UV/short wavelengths and dispersed in middle/long wavelengths. Unlike retinal visual systems, environmental light did not change the usage of the primary opsins responsible for aggregation and dispersion. In addition, short wavelength-rich and red-shifted background conditions led to an inhibitory effect on erythrophore photoresponses. We suggest that, as extraretinal photoreceptors for non-image-forming functions, chromatophores directly adjust their photoresponse sensitivity via changes in opsin expression levels rather than opsin types when environmental light changes. |
format | Online Article Text |
id | pubmed-3925314 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | The Company of Biologists |
record_format | MEDLINE/PubMed |
spelling | pubmed-39253142014-02-21 The influence of chromatic background on the photosensitivity of tilapia erythrophores Chen, Shyh-Chi Hornsby, Mark A. W. Robertson, R. Meldrum Hawryshyn, Craig W. Biol Open Research Article Non-mammalian vertebrates and invertebrates use extraretinal photoreceptors to detect light and perform diverse non-image-forming functions. Compared to well-studied visual systems, the effect of ambient light conditions on photosensory systems of extraretinal photoreceptors is poorly understood. Chromatophores are photosensitive dermal pigment cells that play an important role in the formation of body color patterns to fit the surrounding environment. Here, we used tilapia erythrophores to investigate the relationship between environmental light and chromatophore photoresponses. All erythrophores from three spectral conditions aggregated their pigment granules in UV/short wavelengths and dispersed in middle/long wavelengths. Unlike retinal visual systems, environmental light did not change the usage of the primary opsins responsible for aggregation and dispersion. In addition, short wavelength-rich and red-shifted background conditions led to an inhibitory effect on erythrophore photoresponses. We suggest that, as extraretinal photoreceptors for non-image-forming functions, chromatophores directly adjust their photoresponse sensitivity via changes in opsin expression levels rather than opsin types when environmental light changes. The Company of Biologists 2014-01-03 /pmc/articles/PMC3925314/ /pubmed/24414206 http://dx.doi.org/10.1242/bio.20146742 Text en © 2014. Published by The Company of Biologists Ltd http://creativecommons.org/licenses/by/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. |
spellingShingle | Research Article Chen, Shyh-Chi Hornsby, Mark A. W. Robertson, R. Meldrum Hawryshyn, Craig W. The influence of chromatic background on the photosensitivity of tilapia erythrophores |
title | The influence of chromatic background on the photosensitivity of tilapia erythrophores |
title_full | The influence of chromatic background on the photosensitivity of tilapia erythrophores |
title_fullStr | The influence of chromatic background on the photosensitivity of tilapia erythrophores |
title_full_unstemmed | The influence of chromatic background on the photosensitivity of tilapia erythrophores |
title_short | The influence of chromatic background on the photosensitivity of tilapia erythrophores |
title_sort | influence of chromatic background on the photosensitivity of tilapia erythrophores |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3925314/ https://www.ncbi.nlm.nih.gov/pubmed/24414206 http://dx.doi.org/10.1242/bio.20146742 |
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