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Climate change is a global concern for all life on our planet, including humans and plants. Plants' growth and development are significantly affected by abiotic stresses, including adverse temperature, inadequate or excess water availability, nutrient deficiency, and salinity. The circadian clock is a master regulator of numerous developmental and metabolic processes in plants. In an effort to identify new clock-related genes and outputs through bioinformatic analysis, we have revealed that CIRCADIAN CLOCK ASSOCIATED 1 (CCA1) and LATE ELONGATED HYPOCOTYL (LHY) play a crucial role in regulating a wide range of abiotic stress responses and target ABSCISIC ACID RESPONSIVE ELEMENTS-BINDING FACTOR3 ( ABF3 ), a key transcription factor in the plant hormone Abscisic acid (ABA)-signaling pathway. Specifically, we found that CCA1 and LHY regulate the expression of ABF3 under diel conditions, as well as seed germination under salinity. Conversely, ABF3 controls the expression of core clock genes and orchestrates the circadian period in a stress-responsive manner. ABF3 delivers the stress signal to the central oscillator by binding to the promoter of CCA1 and LHY . Overall, our study uncovers the reciprocal regulation between ABF3 and CCA1/LHY and molecular mechanisms underlying the interaction between the circadian clock and abiotic stress. This finding may aid in developing molecular and genetic solutions for plants to survive and thrive in the face of climate change.

Competing Interests: Competing interests statement:The authors declare no competing interest.

Titel:	The interplay between the circadian clock and abiotic stress responses mediated by ABF3 and CCA1/LHY.
Autor/in / Beteiligte Person:	Liang, T ; Yu, S ; Pan, Y ; Wang, J ; Kay, SA
Zeitschrift:	Proceedings of the National Academy of Sciences of the United States of America, Jg. 121 (2024-02-13), Heft 7, S. e2316825121
Veröffentlichung:	Washington, DC : National Academy of Sciences, 2024
Medientyp:	academicJournal
ISSN:	1091-6490 (electronic)
DOI:	10.1073/pnas.2316825121
Schlagwort:	Humans DNA-Binding Proteins metabolism Abscisic Acid metabolism Circadian Rhythm genetics Gene Expression Regulation, Plant Stress, Physiological Transcription Factors metabolism Circadian Clocks genetics Arabidopsis Proteins metabolism Arabidopsis genetics
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article Language: English [Proc Natl Acad Sci U S A] 2024 Feb 13; Vol. 121 (7), pp. e2316825121. <i>Date of Electronic Publication: </i>2024 Feb 06. MeSH Terms: Circadian Clocks* / genetics ; Arabidopsis Proteins* / metabolism ; Arabidopsis* / genetics ; Humans ; DNA-Binding Proteins / metabolism ; Abscisic Acid / metabolism ; Circadian Rhythm / genetics ; Gene Expression Regulation, Plant ; Stress, Physiological ; Transcription Factors / metabolism References: Curr Biol. 2012 Aug 21;22(16):R648-57. (PMID: 22917516) ; Plant Cell Physiol. 2009 Dec;50(12):2123-32. (PMID: 19880399) ; Plant Cell Physiol. 2005 Apr;46(4):609-19. (PMID: 15695441) ; New Phytol. 2021 Mar;229(5):2660-2675. (PMID: 33095906) ; Science. 2003 Nov 7;302(5647):1049-53. (PMID: 14605371) ; Plant Physiol. 2007 May;144(1):495-502. (PMID: 17384162) ; Cell Rep. 2014 Jul 24;8(2):622-32. (PMID: 25043187) ; Plant Sci. 2019 Mar;280:448-454. (PMID: 30824025) ; Nat Rev Genet. 2015 Oct;16(10):598-610. (PMID: 26370901) ; PLoS One. 2015 Dec 01;10(12):e0143943. (PMID: 26625126) ; Proc Natl Acad Sci U S A. 2011 Jun 7;108(23):9709-14. (PMID: 21593420) ; Science. 2009 May 22;324(5930):1068-71. (PMID: 19407142) ; PLoS One. 2014 May 08;9(5):e96462. (PMID: 24809473) ; Plant Cell Environ. 2021 Feb;44(2):412-424. (PMID: 33125160) ; Arabidopsis Book. 2013 Nov 01;11:e0166. (PMID: 24273463) ; Plant Cell. 2010 Mar;22(3):594-605. (PMID: 20233950) ; Curr Biol. 2002 Apr 30;12(9):757-61. (PMID: 12007421) ; Plant Cell. 2010 Nov;22(11):3650-61. (PMID: 21098730) ; Science. 2000 Dec 15;290(5499):2110-3. (PMID: 11118138) ; Front Plant Sci. 2015 Aug 27;6:648. (PMID: 26379680) ; Nature. 2009 Dec 3;462(7273):660-4. (PMID: 19924127) ; Plant Cell Physiol. 2009 Mar;50(3):447-62. (PMID: 19131357) ; J Biol Chem. 2000 Jan 21;275(3):1723-30. (PMID: 10636868) ; Plant Cell Environ. 2017 Dec;40(12):3113-3121. (PMID: 28941290) ; Plant Physiol. 2005 Mar;137(3):961-8. (PMID: 15728337) ; Cell. 1998 Jun 26;93(7):1219-29. (PMID: 9657154) ; Proc Natl Acad Sci U S A. 2006 Feb 7;103(6):1988-93. (PMID: 16446457) ; Plant J. 2017 Dec;92(6):1106-1120. (PMID: 29032592) ; J Integr Plant Biol. 2020 Jan;62(1):25-54. (PMID: 31850654) ; Genome Biol. 2008;9(8):R130. (PMID: 18710561) ; Proc Natl Acad Sci U S A. 2015 Aug 25;112(34):E4802-10. (PMID: 26261339) ; Proc Natl Acad Sci U S A. 1999 Mar 30;96(7):4176-9. (PMID: 10097183) ; Plant Cell. 2016 Mar;28(3):696-711. (PMID: 26941090) ; Proc Natl Acad Sci U S A. 2014 Nov 11;111(45):16172-7. (PMID: 25352668) ; Plant Cell Environ. 2015 Jan;38(1):35-49. (PMID: 24738645) ; Science. 2000 Aug 4;289(5480):768-71. (PMID: 10926537) ; Proc Natl Acad Sci U S A. 2008 Mar 18;105(11):4495-500. (PMID: 18332440) ; Plant Cell Physiol. 2014 May;55(5):958-76. (PMID: 24500967) ; Proc Natl Acad Sci U S A. 2011 Apr 26;108(17):7241-6. (PMID: 21471455) ; Plant Cell. 2012 Jun;24(6):2427-42. (PMID: 22715042) ; New Phytol. 2010 Oct;188(2):626-37. (PMID: 20663063) ; Proc Natl Acad Sci U S A. 2014 Oct 7;111(40):14595-600. (PMID: 25246594) ; Curr Biol. 2014 Jul 7;24(13):1518-24. (PMID: 24954045) ; Plant J. 2010 Feb;61(4):672-85. (PMID: 19947981) ; EMBO J. 2009 Dec 2;28(23):3745-57. (PMID: 19816401) ; Science. 2001 Aug 3;293(5531):880-3. (PMID: 11486091) ; Science. 2009 May 22;324(5930):1064-8. (PMID: 19407143) ; Plant Cell. 2010 Mar;22(3):606-22. (PMID: 20354196) ; Cell. 1998 Jun 26;93(7):1207-17. (PMID: 9657153) ; Plant Physiol. 2008 Jul;147(3):1110-25. (PMID: 18480377) ; Proc Natl Acad Sci U S A. 2012 Feb 21;109(8):3167-72. (PMID: 22315425) ; Curr Opin Plant Biol. 2021 Dec;64:102133. (PMID: 34773857) ; Plant Physiol. 2020 Sep;184(1):443-458. (PMID: 32690755) ; Plant J. 2013 Oct;76(1):101-14. (PMID: 23808423) ; J Exp Bot. 2021 Jan 20;72(1):122-136. (PMID: 32459309) ; PLoS Genet. 2023 Sep 18;19(9):e1010947. (PMID: 37721961) ; OMICS. 2011 Nov;15(11):763-74. (PMID: 22011341) ; Nat Commun. 2013;4:1352. (PMID: 23322040) ; Nat Struct Mol Biol. 2016 Dec;23(12):1061-1069. (PMID: 27922614) ; Plant Cell. 2007 Feb;19(2):485-94. (PMID: 17307925) ; Science. 2016 Nov 4;354(6312):. (PMID: 27811239) ; Genes Cells. 2006 Dec;11(12):1381-92. (PMID: 17121545) ; Plant Cell. 2009 Jun;21(6):1722-32. (PMID: 19542296) ; Nature. 2011 Jul 13;475(7356):398-402. (PMID: 21753751) ; New Phytol. 2018 Nov;220(3):893-907. (PMID: 30191576) Grant Information: R37 GM067837 United States GM NIGMS NIH HHS Contributed Indexing: Keywords: ABF; abiotic stress; circadian clock; seed germination Substance Nomenclature: 0 (DNA-Binding Proteins) ; 0 (Arabidopsis Proteins) ; 72S9A8J5GW (Abscisic Acid) ; 0 (LHY protein, Arabidopsis) ; 0 (Transcription Factors) ; 0 (CCA1 protein, Arabidopsis) Entry Date(s): Date Created: 20240206 Date Completed: 20240208 Latest Revision: 20240219 Update Code: 20240219 PubMed Central ID: PMC10873597

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The interplay between the circadian clock and abiotic stress responses mediated by ABF3 and CCA1/LHY.