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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erz533
|2 doi
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|a pubmed24n1012.xml
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|a (DE-627)NLM303855576
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|a (NLM)31783407
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Kim, Yoon
|e verfasserin
|4 aut
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| 245 |
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|a ATBS1-INTERACTING FACTOR 2 negatively regulates dark- and brassinosteroid-induced leaf senescence through interactions with INDUCER OF CBF EXPRESSION 1
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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 14.05.2021
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|a Date Revised 31.05.2022
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|a published: Print
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|a ErratumIn: J Exp Bot. 2020 Mar 25;71(6):2210. - PMID 32050026
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|a Citation Status MEDLINE
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|a © The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a ATBS1-INTERACTING FACTOR 2 (AIF2) is a non-DNA-binding basic helix-loop-helix (bHLH) transcription factor. We demonstrated that AIF2 retards dark-triggered and brassinosteroid (BR)-induced leaf senescence in Arabidopsis thaliana. Dark-triggered BR synthesis and the subsequent activation of BRASSINAZOLE RESISTANT 1 (BZR1), a BR signaling positive regulator, result in BZR1 binding to the AIF2 promoter in a dark-dependent manner, reducing AIF2 transcript levels and accelerating senescence. BR-induced down-regulation of AIF2 protein stability partly contributes to the progression of dark-induced leaf senescence. Furthermore, AIF2 interacts with INDUCER OF CBF EXPRESSION 1 (ICE1) via their C-termini. Formation of the AIF2-ICE1 complex and subsequent up-regulation of C-REPEAT BINDING FACTORs (CBFs) negatively regulates dark-triggered, BR-induced leaf senescence. This involves antagonistic down-regulation of PHYTOCHROME INTERACTING FACTOR 4 (PIF4), modulated through AIF2-dependent inhibition of ICE1's binding to the promoter. PIF4-dependent activities respond to dark-induced early senescence and may promote BR synthesis and BZR1 activation to suppress AIF2 and accelerate dark-induced senescence. Taken together, these findings suggest a coordination of AIF2 and ICE1 functions in maintaining stay-green traits
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a ATBS1-INTERACTING FACTOR 2 (AIF2)
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|a Arabidopsis
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|a C-REPEAT BINDING FACTOR (CBF)
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|a INDUCER OF CBF EXPRESSION 1 (ICE1)
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| 650 |
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|a PHYTOCHROME-INTERACTING FACTORS (PIFs)
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| 650 |
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|a basic helix–loop–helix (bHLH)
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| 650 |
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|a brassinosteroid (BR)
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| 650 |
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|a leaf senescence
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Basic Helix-Loop-Helix Transcription Factors
|2 NLM
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| 650 |
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|a Brassinosteroids
|2 NLM
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| 650 |
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|a ICE1 protein, Arabidopsis
|2 NLM
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| 650 |
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|a Transcription Factors
|2 NLM
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| 700 |
1 |
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|a Park, Seon-U
|e verfasserin
|4 aut
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|a Shin, Dong-Min
|e verfasserin
|4 aut
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| 700 |
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|a Pham, Giang
|e verfasserin
|4 aut
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| 700 |
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|a Jeong, You Seung
|e verfasserin
|4 aut
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| 700 |
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|a Kim, Soo-Hwan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 71(2020), 4 vom: 19. Feb., Seite 1475-1490
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:71
|g year:2020
|g number:4
|g day:19
|g month:02
|g pages:1475-1490
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|u http://dx.doi.org/10.1093/jxb/erz533
|3 Volltext
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