In the Limelight: Photoreceptors in Cyanobacteria

ABSTRACT Certain cyanobacteria look green if grown in red light and vice versa. This dramatic color change, called complementary chromatic adaptation (CCA), is caused by alterations of the major colored light-harvesting proteins. A major controller of CCA is the cyanobacteriochrome (CBCR) RcaE, a re...

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Autor principal:	Devaki Bhaya
Formato:	article
Lenguaje:	EN
Publicado:	American Society for Microbiology 2016
Materias:	Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/5988f3da42c943a0b535f732452c0f13
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spelling	oai:doaj.org-article:5988f3da42c943a0b535f732452c0f132021-11-15T15:50:17ZIn the Limelight: Photoreceptors in Cyanobacteria10.1128/mBio.00741-162150-7511https://doaj.org/article/5988f3da42c943a0b535f732452c0f132016-07-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/mBio.00741-16https://doaj.org/toc/2150-7511ABSTRACT Certain cyanobacteria look green if grown in red light and vice versa. This dramatic color change, called complementary chromatic adaptation (CCA), is caused by alterations of the major colored light-harvesting proteins. A major controller of CCA is the cyanobacteriochrome (CBCR) RcaE, a red-green reversible photoreceptor that triggers a complex signal transduction pathway. Now, a new study demonstrates that CCA is also modulated by DpxA, a CBCR that senses yellow and teal (greenish blue) light. DpxA acts to expand the range of wavelengths that can impact CCA, by fine-tuning the process. This dual control of CCA might positively impact the fitness of cells growing in the shade of competing algae or in a water column where light levels and spectral quality change gradually with depth. This discovery adds to the growing number of light-responsive phenomena controlled by multiple CBCRs. Furthermore, the diverse CBCRs which are exclusively found in cyanobacteria have significant biotechnological potential.Devaki BhayaAmerican Society for MicrobiologyarticleMicrobiologyQR1-502ENmBio, Vol 7, Iss 3 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Microbiology QR1-502
spellingShingle	Microbiology QR1-502 Devaki Bhaya In the Limelight: Photoreceptors in Cyanobacteria
description	ABSTRACT Certain cyanobacteria look green if grown in red light and vice versa. This dramatic color change, called complementary chromatic adaptation (CCA), is caused by alterations of the major colored light-harvesting proteins. A major controller of CCA is the cyanobacteriochrome (CBCR) RcaE, a red-green reversible photoreceptor that triggers a complex signal transduction pathway. Now, a new study demonstrates that CCA is also modulated by DpxA, a CBCR that senses yellow and teal (greenish blue) light. DpxA acts to expand the range of wavelengths that can impact CCA, by fine-tuning the process. This dual control of CCA might positively impact the fitness of cells growing in the shade of competing algae or in a water column where light levels and spectral quality change gradually with depth. This discovery adds to the growing number of light-responsive phenomena controlled by multiple CBCRs. Furthermore, the diverse CBCRs which are exclusively found in cyanobacteria have significant biotechnological potential.
format	article
author	Devaki Bhaya
author_facet	Devaki Bhaya
author_sort	Devaki Bhaya
title	In the Limelight: Photoreceptors in Cyanobacteria
title_short	In the Limelight: Photoreceptors in Cyanobacteria
title_full	In the Limelight: Photoreceptors in Cyanobacteria
title_fullStr	In the Limelight: Photoreceptors in Cyanobacteria
title_full_unstemmed	In the Limelight: Photoreceptors in Cyanobacteria
title_sort	in the limelight: photoreceptors in cyanobacteria
publisher	American Society for Microbiology
publishDate	2016
url	https://doaj.org/article/5988f3da42c943a0b535f732452c0f13
work_keys_str_mv	AT devakibhaya inthelimelightphotoreceptorsincyanobacteria
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In the Limelight: Photoreceptors in Cyanobacteria

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