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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1111/nph.16194
|2 doi
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|a pubmed24n1004.xml
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|a (DE-627)NLM301227934
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|a (NLM)31514232
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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 |
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|a Mao, Zhilei
|e verfasserin
|4 aut
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|a Photoexcited CRY1 and phyB interact directly with ARF6 and ARF8 to regulate their DNA-binding activity and auxin-induced hypocotyl elongation in Arabidopsis
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|c 2020
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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 01.12.2020
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|a Date Revised 01.12.2020
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|a published: Print-Electronic
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|a GENBANK: GSE58552, GSE101873, GSE101875
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|a Citation Status MEDLINE
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|a © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.
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|a Arabidopsis CRY1 and phyB are the primary blue and red light photoreceptors mediating blue and red light inhibition of hypocotyl elongation, respectively. Auxin is a pivotal phytohormone involved in promoting hypocotyl elongation. CRY1 and phyB interact with and stabilize auxin/indole acetic acid proteins (Aux/IAAs) to inhibit auxin signaling. The present study investigated whether photoreceptors might interact directly with Auxin Response Factors (ARFs) to regulate auxin signaling. Protein-protein interaction studies demonstrated that CRY1 and phyB interact physically with ARF6 and ARF8 through their N-terminal domains in a blue and red light-dependent manner, respectively. Moreover, the N-terminal DNA-binding domain of ARF6 and ARF8 is involved in mediating their interactions with CRY1. Genetic studies showed that ARF6 and ARF8 act partially downstream from CRY1 and PHYB to regulate hypocotyl elongation under blue and red light, respectively. Chromatin immunoprecipitation-PCR assays demonstrated that CRY1 and phyB mediate blue and red light repression of the DNA-binding activity of ARF6 and ARF6-target gene expression, respectively. Altogether, the results herein suggest that the direct repression of auxin-responsive gene expression mediated by the interactions of CRY1 and phyB with ARFs constitutes a new layer of the regulatory mechanisms by which light inhibits auxin-induced hypocotyl elongation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis thaliana
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|a Auxin Response Factor
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|a auxin
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|a blue light
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|a cryptochrome 1
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|a hypocotyl elongation
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|a phytochrome B
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|a red light
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|a Arabidopsis Proteins
|2 NLM
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|a CRY1 protein, Arabidopsis
|2 NLM
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| 650 |
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|a Cryptochromes
|2 NLM
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| 650 |
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|a DNA, Plant
|2 NLM
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| 650 |
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|a DNA-Binding Proteins
|2 NLM
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| 650 |
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|a Indoleacetic Acids
|2 NLM
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| 650 |
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|a PHYB 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 auxin response factor 6, Arabidopsis
|2 NLM
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| 650 |
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|a auxin response factor 8, Arabidopsis
|2 NLM
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| 650 |
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|a Phytochrome B
|2 NLM
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| 650 |
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|a 136250-22-1
|2 NLM
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| 700 |
1 |
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|a He, Shengbo
|e verfasserin
|4 aut
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|a Xu, Feng
|e verfasserin
|4 aut
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| 700 |
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|a Wei, Xuxu
|e verfasserin
|4 aut
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| 700 |
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|a Jiang, Lu
|e verfasserin
|4 aut
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|a Liu, Yao
|e verfasserin
|4 aut
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|a Wang, Wenxiu
|e verfasserin
|4 aut
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|a Li, Ting
|e verfasserin
|4 aut
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|a Xu, Pengbo
|e verfasserin
|4 aut
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|a Du, Shasha
|e verfasserin
|4 aut
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|a Li, Ling
|e verfasserin
|4 aut
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|a Lian, Hongli
|e verfasserin
|4 aut
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|a Guo, Tongtong
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Hong-Quan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 225(2020), 2 vom: 03. Jan., Seite 848-865
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:225
|g year:2020
|g number:2
|g day:03
|g month:01
|g pages:848-865
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|u http://dx.doi.org/10.1111/nph.16194
|3 Volltext
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|d 225
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