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FAR-RED ELONGATED HYPOCOTYL3 and FAR-RED IMPAIRED RESPONSE1 Transcription Factors Integrate Light and Abscisic Acid Signaling in Arabidopsis

文献类型：期刊论文

作者Tang, Weijiang; Ji, Qiang4; Huang, Yongping3; Jiang, Zhimin4; Bao, Manzhu3; Wang, Haiyang2; Lin, Rongcheng5
刊名PLANT PHYSIOLOGY
出版日期2013
卷号163期号:2页码:857-866
ISSN号0032-0889
DOI10.1104/pp.113.224386
文献子类Article
英文摘要Light and the phytohormone abscisic acid (ABA) regulate overlapping processes in plants, such as seed germination and seedling development. However, the molecular mechanism underlying the interaction between light and ABA signaling is largely unknown. Here, we show that FAR-RED ELONGATED HYPOCOTYL3 (FHY3) and FAR-RED IMPAIRED RESPONSE1 (FAR1), two key positive transcription factors in the phytochrome A pathway, directly bind to the promoter of ABA-Insensitive5 and activate its expression in Arabidopsis (Arabidopsis thaliana). Disruption of FHY3 and/or FAR1 reduces the sensitivity to ABA-mediated inhibition of seed germination, seedling development, and primary root growth. The seed germination of the fhy3 mutant is also less sensitive to salt and osmotic stress than that of the wild type. Constitutive expression of ABA-Insensitive5 restores the seed germination response of fhy3. Furthermore, the expression of several ABA-responsive genes is decreased in the fhy3 and/or far1 mutants during seed imbibition. Consistently, FHY3 and FAR1 transcripts are up-regulated by ABA and abiotic stresses. Moreover, the fhy3 and far1 mutants have wider stomata, lose water faster, and are more sensitive to drought than the wild type. These findings demonstrate that FHY3 and FAR1 are positive regulators of ABA signaling and provide insight into the integration of light and ABA signaling, a process that may allow plants to better adapt to environmental stresses.
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NEGATIVE REGULATOR ; SEED-GERMINATION ; GENE-EXPRESSION ; PHYTOCHROME ; PROTEIN ; FHY3 ; BINDING ; STRESS ; PIL5 ; ABI3
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000325554100036
出版者OXFORD UNIV PRESS INC
资助机构National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Chinese Academy of Sciences(Chinese Academy of Sciences)
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/27900]  
专题中科院光生物学重点实验室
作者单位1.Natl Ctr Plant Gene Res, Beijing 100093, Peoples R China
2.Huazhong Agr Univ, Coll Hort & Forestry Sci, Wuhan 430070, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China
5.Chinese Acad Agr Sci, Biotechnol Res Inst, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Weijiang,Ji, Qiang,Huang, Yongping,et al. FAR-RED ELONGATED HYPOCOTYL3 and FAR-RED IMPAIRED RESPONSE1 Transcription Factors Integrate Light and Abscisic Acid Signaling in Arabidopsis[J]. PLANT PHYSIOLOGY,2013,163(2):857-866.
APA Tang, Weijiang.,Ji, Qiang.,Huang, Yongping.,Jiang, Zhimin.,Bao, Manzhu.,...&Lin, Rongcheng.(2013).FAR-RED ELONGATED HYPOCOTYL3 and FAR-RED IMPAIRED RESPONSE1 Transcription Factors Integrate Light and Abscisic Acid Signaling in Arabidopsis.PLANT PHYSIOLOGY,163(2),857-866.
MLA Tang, Weijiang,et al."FAR-RED ELONGATED HYPOCOTYL3 and FAR-RED IMPAIRED RESPONSE1 Transcription Factors Integrate Light and Abscisic Acid Signaling in Arabidopsis".PLANT PHYSIOLOGY 163.2(2013):857-866.

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来源：植物研究所

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