The transcription factor HSFA7b controls thermomemory at the shoot apical meristem by regulating ethylene biosynthesis and signaling in Arabidopsis

作     者：Sheeba John Federico Apelt Amit Kumar Ivan FAcosta Dominik Bents Maria Grazia Annunziata Franziska Fichtner Caroline Gutjahr Bernd Mueller-Roeber Justyna J.Olas 

作者机构：University of PotsdamInstitute of Biochemistry and BiologyKarl-Liebknecht-Straße 24-25Haus 2014476 PotsdamGermany Max Planck Institute of Molecular Plant PhysiologyAm Muehlenberg 114476 PotsdamGermany Laboratory of Molecular BiologyWageningen University6700 AP Wageningenthe Netherlands Center of Plant Systems Biology and Biotechnology(CPSBB)14 St.Knyaz Boris 1 Pokrastitel Str.4023 PlovdivBulgaria Present address:Institute of Plant BiochemistryHeinrich Heine University DusseldorfUniversit€atsstr.140225 DusseldorfGermany Leibniz Institute of Vegetable and Ornamental CropsTheodor-Echtermeyer-Weg 114979 GroßbeerenGermany 

出 版 物：《Plant Communications》 (植物通讯（英文）)

年 卷 期：2024年第5卷第3期

页      面：47-61页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

基　　金：funding Collaborative Research Centre 973"Priming and Memory of Organismic Responses to Stress" (www.sfb973.de) the European Union’s Horizon 2020 Research and Innovation Programme for funding project PlantaSYST (SGA-CSA No.739582 under FPA No.664620) the European Regional Development Fund for funding project BG05M2OP001-1.003-001-C01 through the Bulgarian"Science and Education for Smart Growth"Operational Programme,and the MPI-MP and the University of Potsdam for financial support.B.M.-R.and S.J.thank the International Max Planck Research School"Primary Metabolism and Plant Growth" (IMPRS-PMPG)for support.J.J.O.thanks the DFG (OL 767/1-1) Leibniz Institute of Vegetable and Ornamental Crops for funding 

主　　题：ethylene response heat stress adaptation shoot apical meristem SAM thermopriming thermomemory 

摘      要：The shoot apical meristem(SAM)is responsible for overall shoot growth by generating all aboveground *** research has revealed that the SAM displays an autonomous heat stress(HS)memory of a previous non-lethal HS *** the importance of the SAM for plant growth,it is essential to determine how its thermomemory is mechanistically ***,we report that HEAT SHOCK TRAN-SCRIPTION FACTOR A7b(HSFA7b)plays a crucial role in this process in Arabidopsis,as the absence of functional HSFA7b results in the temporal suppression of SAM activity after *** found that HSFA7b directly regulates ethylene response at the SAM by binding to the promoter of the key ethylene signaling gene ETHYLENE-INSENSITIVE 3 to establish ***,we demonstrated that HSFA7b regulates the expression of ETHYLENE OVERPRODUCER 1(ETO1)and ETO1-LIKE 1,both of which encode ethylene biosynthesis repressors,thereby ensuring ethylene homeostasis at the *** together,these results reveal a crucial and tissue-specic role for HSFA7b in thermomemory at the Arabidopsis SAM.