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Opsin expression: New mechanism for modulating colour vision.
- Source :
-
Nature . 3/18/2004, Vol. 428 Issue 6980, p279-280. 2p. - Publication Year :
- 2004
-
Abstract
- Each cone photoreceptor in the retina responds to light in a limited range of wavelengths, giving it a spectral phenotype. This phenotype is determined by the most prevalent of the photoreceptor's visual-pigment proteins (opsins) and is assumed to remain unchanged during an animal's lifetime. Here we show that in the Pacific pink salmon, Oncorhynchus gorbuscha, single cones can switch their spectral phenotype from ultraviolet to blue by regulating the production of the appropriate opsins as the fish grow older. This photoreceptor plasticity may operate to modulate colour vision as the salmon's lifestyle changes. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COLOR vision
*PINK salmon
*PHOTORECEPTORS
*RETINA
*VISUAL perception
*LIGHT cones
Subjects
Details
- Language :
- English
- ISSN :
- 00280836
- Volume :
- 428
- Issue :
- 6980
- Database :
- Academic Search Index
- Journal :
- Nature
- Publication Type :
- Academic Journal
- Accession number :
- 12556478
- Full Text :
- https://doi.org/10.1038/428279a