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Q&A: How do plants sense and respond to UV-B radiation?

Published inBMC biology, vol. 13, 45
Publication date2015
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.

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ULM, Roman, JENKINS, Gareth I. Q&A: How do plants sense and respond to UV-B radiation? In: BMC biology, 2015, vol. 13, p. 45. doi: 10.1186/s12915-015-0156-y
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ISSN of the journal1741-7007
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Creation08/13/2015 10:00:00 AM
First validation08/13/2015 10:00:00 AM
Update time03/14/2023 11:34:08 PM
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