Daytime temperature is sensed by phytochrome B in Arabidopsis through a transcriptional activator HEMERA.
Arabidopsis
/ physiology
Arabidopsis Proteins
/ genetics
Basic Helix-Loop-Helix Transcription Factors
/ metabolism
Climate Change
Cryptochromes
/ metabolism
Gene Expression Regulation, Plant
/ genetics
Phytochrome B
/ genetics
Signal Transduction
/ genetics
Temperature
Thermosensing
/ genetics
Transcription Factors
/ genetics
Transcriptional Activation
/ genetics
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
11 01 2019
11 01 2019
Historique:
received:
08
07
2018
accepted:
14
12
2018
entrez:
13
1
2019
pubmed:
13
1
2019
medline:
9
2
2019
Statut:
epublish
Résumé
Ambient temperature sensing by phytochrome B (PHYB) in Arabidopsis is thought to operate mainly at night. Here we show that PHYB plays an equally critical role in temperature sensing during the daytime. In daytime thermosensing, PHYB signals primarily through the temperature-responsive transcriptional regulator PIF4, which requires the transcriptional activator HEMERA (HMR). HMR does not regulate PIF4 transcription, instead, it interacts directly with PIF4, to activate the thermoresponsive growth-relevant genes and promote warm-temperature-dependent PIF4 accumulation. A missense allele hmr-22, which carries a loss-of-function D516N mutation in HMR's transcriptional activation domain, fails to induce the thermoresponsive genes and PIF4 accumulation. Both defects of hmr-22 could be rescued by expressing a HMR22 mutant protein fused with the transcriptional activation domain of VP16, suggesting a causal relationship between HMR-mediated activation of PIF4 target-genes and PIF4 accumulation. Together, this study reveals a daytime PHYB-mediated thermosensing mechanism, in which HMR acts as a necessary activator for PIF4-dependent induction of temperature-responsive genes and PIF4 accumulation.
Identifiants
pubmed: 30635559
doi: 10.1038/s41467-018-08059-z
pii: 10.1038/s41467-018-08059-z
pmc: PMC6329817
doi:
Substances chimiques
Arabidopsis Proteins
0
Basic Helix-Loop-Helix Transcription Factors
0
CRY1 protein, Arabidopsis
0
Cryptochromes
0
HMR protein, Arabidopsis
0
PIF4 protein, Arabidopsis
0
Transcription Factors
0
Phytochrome B
136250-22-1
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
140Subventions
Organisme : NIGMS NIH HHS
ID : R01 GM087388
Pays : United States
Organisme : NIH HHS
ID : S10 OD016290
Pays : United States
Références
Curr Biol. 2012 May 22;22(10):R396-7
pubmed: 22625853
Proc Natl Acad Sci U S A. 2011 Dec 13;108(50):20231-5
pubmed: 22123947
Nat Commun. 2016 Dec 14;7:13692
pubmed: 27966533
Plant Physiol. 2017 Apr;173(4):1953-1966
pubmed: 28232584
Plant Physiol. 2018 Sep;178(1):3-6
pubmed: 30194261
Annu Rev Genet. 2004;38:87-117
pubmed: 15568973
Trends Plant Sci. 2010 Dec;15(12):684-92
pubmed: 20970368
Nat Commun. 2016 May 06;7:11431
pubmed: 27150909
Plant Cell. 1993 Feb;5(2):147-57
pubmed: 8453299
Plant J. 1996 Oct;10(4):755-60
pubmed: 8893551
Plant J. 2011 Feb;65(3):441-52
pubmed: 21265897
Science. 2014 Jun 6;344(6188):1160-1164
pubmed: 24904166
Cell Rep. 2017 Jan 10;18(2):344-351
pubmed: 28076780
Elife. 2017 Aug 22;6:
pubmed: 28826468
Nat Plants. 2015 Jul 06;1:15090
pubmed: 27250256
Plant Cell. 2004 Jun;16(6):1433-45
pubmed: 15155879
Plant Cell. 2014 Jun 20;26(6):2441-2456
pubmed: 24951480
Genes Dev. 2012 Aug 15;26(16):1851-63
pubmed: 22895253
Elife. 2016 Feb 03;5:e13292
pubmed: 26839287
Annu Rev Plant Biol. 2006;57:739-59
pubmed: 16669780
Plant Physiol. 2012 Jan;158(1):52-60
pubmed: 21951469
Curr Biol. 2008 Dec 9;18(23):1815-23
pubmed: 19062289
Genes Dev. 2012 Apr 15;26(8):785-90
pubmed: 22508725
Proc Natl Acad Sci U S A. 1998 Jun 9;95(12):7197-202
pubmed: 9618562
Plant J. 2013 Jan;73(1):1-13
pubmed: 22950756
Nat Plants. 2017 Jun 26;3:17087
pubmed: 28650433
Plant Cell. 2015 May;27(5):1409-27
pubmed: 25944101
Plant J. 2009 Nov;60(4):589-601
pubmed: 19686536
Proc Natl Acad Sci U S A. 2016 Jan 5;113(1):224-9
pubmed: 26699514
Plant Cell. 2002 Jul;14(7):1541-55
pubmed: 12119373
PLoS Biol. 2008 Sep 16;6(9):e225
pubmed: 18798691
Annu Rev Plant Biol. 2006;57:837-58
pubmed: 16669784
Nature. 2012 Mar 21;484(7393):242-245
pubmed: 22437497
Plant Cell. 2014 Dec;26(12):4568-83
pubmed: 25480369
Science. 2007 May 4;316(5825):715-9
pubmed: 17395793
PLoS Biol. 2007 Aug;5(8):e222
pubmed: 17683202
Science. 2002 May 31;296(5573):1689-91
pubmed: 12040195
Proc Natl Acad Sci U S A. 2003 Nov 25;100(24):14493-8
pubmed: 14612575
New Phytol. 2015 May;206(3):1024-37
pubmed: 25599833
Nat Commun. 2017 Dec 4;8(1):1905
pubmed: 29199270
Plant Cell. 2006 Jan;18(1):176-97
pubmed: 16326926
Genes Dev. 2016 Jul 1;30(13):1529-41
pubmed: 27401556
Nature. 2007 Jul 19;448(7151):358-61
pubmed: 17589502
Plant J. 2008 Jan;53(2):312-23
pubmed: 18047474
Proc Natl Acad Sci U S A. 2005 Jun 7;102(23):8245-50
pubmed: 15919825
Trends Plant Sci. 2011 Jan;16(1):19-28
pubmed: 20833098
Nat Genet. 2003 Feb;33(2):168-71
pubmed: 12548286
J Exp Bot. 2013 Dec;64(18):5457-72
pubmed: 24078666
Proc Natl Acad Sci U S A. 2009 May 5;106(18):7660-5
pubmed: 19380720
Curr Biol. 2015 Jan 19;25(2):194-199
pubmed: 25557663
Curr Biol. 2015 Jan 19;25(2):187-193
pubmed: 25557667
Cell Rep. 2014 Dec 24;9(6):1983-9
pubmed: 25533339
Plant Physiol. 2014 Apr 25;165(2):595-607
pubmed: 24769533
Plant Cell Physiol. 2014 May;55(5):958-76
pubmed: 24500967
Nat Genet. 2007 Nov;39(11):1410-3
pubmed: 17965713
Nature. 2003 Dec 11;426(6967):680-3
pubmed: 14668869
Curr Biol. 2009 Mar 10;19(5):408-13
pubmed: 19249207
Nat Commun. 2017 Dec 20;8(1):2221
pubmed: 29263319
Science. 2016 Nov 18;354(6314):886-889
pubmed: 27789797
Cell. 2010 Jun 25;141(7):1230-40
pubmed: 20603003
Mol Cell Proteomics. 2016 Jan;15(1):201-17
pubmed: 26545401
Plant Cell Physiol. 2003 Jun;44(6):619-29
pubmed: 12826627
J Cell Biol. 1999 May 3;145(3):437-45
pubmed: 10225946
Plant J. 2017 May;90(4):683-697
pubmed: 28008680
Science. 2016 Nov 18;354(6314):897-900
pubmed: 27789798
Plant Cell. 2004 Apr;16(4):1060-71
pubmed: 15031411
Plant J. 1999 Jan;17(1):63-71
pubmed: 10069068
Plant Cell. 2014 Sep;26(9):3630-45
pubmed: 25248553
BMC Plant Biol. 2017 Jul 6;17(1):114
pubmed: 28683779
Cell. 2008 Apr 4;133(1):164-76
pubmed: 18394996
Front Plant Sci. 2013 Jul 31;4:273
pubmed: 23914193
Nat Plants. 2016 Jan 06;2:15190
pubmed: 27250752
Plant Cell. 2004 Nov;16(11):3033-44
pubmed: 15486100
Proc Natl Acad Sci U S A. 2008 Nov 4;105(44):17029-33
pubmed: 18955707
Curr Biol. 2017 Aug 21;27(16):2420-2430.e6
pubmed: 28736168
Mol Plant. 2017 Oct 9;10(10):1258-1273
pubmed: 28893714
New Phytol. 2017 Jul;215(1):269-280
pubmed: 28418582
Nature. 2011 Jul 13;475(7356):398-402
pubmed: 21753751