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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2020.110760
|2 doi
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|a pubmed24n1068.xml
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|a (DE-627)NLM320494799
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|a (NLM)33487344
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|a (PII)S0168-9452(20)30366-6
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Bhatia, Chitra
|e verfasserin
|4 aut
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| 245 |
1 |
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|a COP1 mediates light-dependent regulation of flavonol biosynthesis through HY5 in Arabidopsis
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| 264 |
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 05.05.2021
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|a Date Revised 05.05.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a Copyright © 2020 Elsevier B.V. All rights reserved.
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|a Flavonols, a class of flavonoids, accumulate as protective agents in response to various stresses. Among various environmental stimuli, light is one of the factors regulating flavonol production. MYB12/11/111, members of the R2R3 MYBs family, regulates spatio-temporal flavonol accumulation in Arabidopsis. Although various studies indicate at the involvement of an E3 ubiquitin ligase CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1) and ELONGATED HYPOCOTYL 5 (HY5) in flavonoid biosynthesis in response to UV-B, the regulatory roles of these components under visible light are yet to be investigated. Here, we demonstrate that flavonol accumulation in Arabidopsis is light-regulated. Furthermore, our analysis suggests that MYB12 is a HY5-dependent light-inducible gene and plays a key role in the activation of the flavonol biosynthesis in response to light. Our results indicate the involvement of COP1 in the dark-dependent repression of MYB12 expression and flavonol accumulation. In addition, results also suggest that the effect of COP1 on MYB12 is indirect and is mediated through HY5, a direct transcriptional activator of the MYB12. Together these findings indicate that COP1 acts as a master negative regulator of flavonol biosynthesis in the dark
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|a Journal Article
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|a COP1
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|a Flavonol
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|a HY5
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|a Light-dependent regulation
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|a MYB transcription factors
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|a Arabidopsis Proteins
|2 NLM
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|a Basic-Leucine Zipper Transcription Factors
|2 NLM
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|a Flavonols
|2 NLM
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| 650 |
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|a HY5 protein, Arabidopsis
|2 NLM
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| 650 |
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|a MYB12 protein, Arabidopsis
|2 NLM
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| 650 |
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|a Transcription Factors
|2 NLM
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| 650 |
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|a AT2G32950 protein, Arabidopsis
|2 NLM
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| 650 |
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|a EC 2.3.2.27
|2 NLM
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| 650 |
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|a Ubiquitin-Protein Ligases
|2 NLM
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| 650 |
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|a EC 2.3.2.27
|2 NLM
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| 700 |
1 |
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|a Gaddam, Subhash Reddy
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pandey, Ashutosh
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Trivedi, Prabodh Kumar
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 303(2021) vom: 04. Feb., Seite 110760
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
1 |
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|g volume:303
|g year:2021
|g day:04
|g month:02
|g pages:110760
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| 856 |
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|u http://dx.doi.org/10.1016/j.plantsci.2020.110760
|3 Volltext
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|a AR
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|d 303
|j 2021
|b 04
|c 02
|h 110760
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