Ulm, R. and Jenkins, G. (2015) Q&A: How do plants sense and respond to UV-B radiation? BMC Biology, 13, 45. (doi: 10.1186/s12915-015-0156-y) (PMID:26123292) (PMCID:PMC4484705)
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Abstract
Plants are able to sense UV-B through the UV-B photoreceptor UVR8. UV-B photon absorption by a UVR8 homodimer leads to UVR8 monomerization and interaction with the downstream signaling factor COP1. This then initiates changes in gene expression, which lead to several metabolic and morphological alterations. A major response is the activation of mechanisms associated with UV-B acclimation and UV-B tolerance, including biosynthesis of sunscreen metabolites, antioxidants and DNA repair enzymes. To balance the response, UVR8 is inactivated by regulated re-dimerization. Apart from their importance for plants, UVR8 and its interacting protein COP1 have already proved useful for the optogenetic toolkit used to engineer synthetic light-dependent responses.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Jenkins, Professor Gareth |
Authors: | Ulm, R., and Jenkins, G. |
College/School: | College of Medical Veterinary and Life Sciences > School of Molecular Biosciences |
Journal Name: | BMC Biology |
Publisher: | BioMed Central |
ISSN: | 1741-7007 |
ISSN (Online): | 1741-7007 |
Copyright Holders: | Copyright © 2015 The Authors |
First Published: | First published in BMC Biology 13:45 |
Publisher Policy: | Reproduced under a Creative Commons License |
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