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AGAMOUS-LIKE67 Cooperates with the Histone Mark Reader EBS to Modulate Seed Germination under High Temperature

文献类型：期刊论文

作者Li, Ping; Zhang, Qili; He, Danni; Zhou, Yun1; Ni, Huanhuan; Tian, Dagang5; Chang, Guanxiao1; Jing, Yanjun4; Lin, Rongcheng4; Huang, Jinling1,3
刊名PLANT PHYSIOLOGY
出版日期2020
卷号184期号:1页码:529-545
ISSN号0032-0889
DOI10.1104/pp.20.00056
文献子类Article
英文摘要Seed germination is a vital developmental process that is tightly controlled by environmental signals, ensuring germination under favorable conditions. High temperature (HT) suppresses seed germination. This process, known as thermoinhibition, is achieved by activating abscisic acid and inhibiting gibberellic acid biosynthesis. The zinc-finger protein SOMNUS (SOM) participates in thermoinhibition of seed germination by altering gibberellic acid/abscisic acid metabolism, but the underlying regulatory mechanism is poorly understood. In this study, we report that SOM binds to its own promoter and activates its own expression in Arabidopsis (Arabidopsis thaliana) and identify the MADS-box transcription factor AGAMOUS-LIKE67 (AGL67) as a critical player in SOM function, based on its ability to recognize CArG-boxes within the SOM promoter and mediate the trans-activation of SOM under HTs. In addition, AGL67 recruits the histone mark reader EARLY BOLTING IN SHORT DAY (EBS), which recognizes H3K4me3 at SOM chromatin. In response to HTs, AGL67 and EBS are highly enriched around the SOM promoter. The AGL67-EBS complex is also necessary for histone H4K5 acetylation, which activates SOM expression, ultimately inhibiting seed germination. Taken together, our results reveal an essential mechanism in which AGL67 cooperates with the histone mark reader EBS, which bridges the process of H3K4me3 recognition with H4K5 acetylation, thereby epigenetically activating SOM expression to suppress seed germination under HT stress.
学科主题Plant Sciences
出版地CARY
电子版国际标准刊号1532-2548
WOS关键词ZINC-FINGER PROTEINS ; ABSCISIC-ACID ; ARABIDOPSIS-THALIANA ; GIBBERELLIN ; EXPRESSION ; DORMANCY ; GENE ; BIOSYNTHESIS ; STRESS ; REPRESSION
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000585825000045
出版者OXFORD UNIV PRESS INC
资助机构Shanghai UniversityShanghai University ; Open Project Funding of the State Key Laboratory of Crop Stress Adaptation and Improvement ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31970289] ; Chinese Academy of Science Light of West China ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31970248]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/21531]  
专题中科院光生物学重点实验室
作者单位1.Shanghai Univ, Sch Life Sci, Shanghai Key Lab Bioenergy Crops, Shanghai 200444, Peoples R China
2.East Carolina Univ, Dept Biol, Greenville, NC 27858 USA
3.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China
4.Fujian Acad Agr Sci, Biotechnol Res Inst, Fujian Key Lab Genet Engn Agr, Fuzhou 350003, Peoples R China
5.Henan Univ, Sch Life Sci, State Key Lab Crop Stress Adaptat & Improvement, Kaifeng 475004, Peoples R China
推荐引用方式
GB/T 7714		 Li, Ping,Zhang, Qili,He, Danni,et al. AGAMOUS-LIKE67 Cooperates with the Histone Mark Reader EBS to Modulate Seed Germination under High Temperature[J]. PLANT PHYSIOLOGY,2020,184(1):529-545.
APA Li, Ping.,Zhang, Qili.,He, Danni.,Zhou, Yun.,Ni, Huanhuan.,...&Hu, Xiangyang.(2020).AGAMOUS-LIKE67 Cooperates with the Histone Mark Reader EBS to Modulate Seed Germination under High Temperature.PLANT PHYSIOLOGY,184(1),529-545.
MLA Li, Ping,et al."AGAMOUS-LIKE67 Cooperates with the Histone Mark Reader EBS to Modulate Seed Germination under High Temperature".PLANT PHYSIOLOGY 184.1(2020):529-545.

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来源：植物研究所

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