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A Brassinosteroids-BES1 Regulatory Module Manipulate Thermomemory in Arabidopsis thaliana
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  • xiuhong yao,
  • Juan Chen,
  • Wen Yu,
  • Zuxu Zhou,
  • Fabin Yang,
  • Yanling Li,
  • Dawei Zhang,
  • HONG-HUI LIN
xiuhong yao
Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering

Corresponding Author:[email protected]

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Juan Chen
Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering
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Wen Yu
Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering
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Zuxu Zhou
Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering
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Fabin Yang
Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering
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Yanling Li
Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering
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Dawei Zhang
Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering
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HONG-HUI LIN
Sichuan University State Key Laboratory of Hydraulics and Mountain River Engineering
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Abstract

Heat stress (HS) caused by ambient high temperature pose a threat to plants. In the natural and agricultural environment, plants often encounter repeated and changeable HS. Moderate HS primes plants to establishment of a molecular ‘thermomemory’ that enables plants to withstand a later-and possibly more extreme-HS attack. Recent years, brassinosteroids (BRs) have been implicated in HS response whereas little is known about whether BRs signal transduction modulates thermomemory. Here, we uncover the positive role of BRs signaling in thermomemory of Arabidopsis thaliana. Heat priming induces de novo synthesis and nuclear accumulation of BRI1-EMS-SUPPRESSOR (BES1), the key regulator of BRs signaling. BRs promote the accumulation of dephosphorylated BES1 during memory phase, blocking BRs synthesis impairs dephosphorylation. During HS memory, BES1 is required to maintain sustained induction of HS memory genes and directly targets APX2 and HSFA3 for activation. In summary, our results reveal a BES1-required, BRs-enhanced transcriptional control module of thermomemory in Arabidopsis thaliana.
14 Feb 2022Submitted to Plant, Cell & Environment
15 Feb 2022Submission Checks Completed
15 Feb 2022Assigned to Editor
04 Mar 2022Reviewer(s) Assigned
01 May 2022Review(s) Completed, Editorial Evaluation Pending
05 May 2022Editorial Decision: Revise Minor
03 Jun 20221st Revision Received
10 Jun 2022Submission Checks Completed
10 Jun 2022Assigned to Editor
14 Jun 2022Reviewer(s) Assigned
24 Jul 2022Review(s) Completed, Editorial Evaluation Pending
13 Aug 2022Editorial Decision: Revise Minor
28 Aug 20222nd Revision Received
28 Aug 2022Submission Checks Completed
28 Aug 2022Assigned to Editor
05 Sep 2022Reviewer(s) Assigned
13 Sep 2022Review(s) Completed, Editorial Evaluation Pending
17 Sep 2022Editorial Decision: Accept