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FHY3 interacts with phytochrome B and regulates seed dormancy and germination

文献类型：期刊论文

作者Liu, Shuangrong3; Yang, Liwen; Li, Jialong3; Tang, Weijiang; Li, Jigang2; Lin, Rongcheng3
刊名PLANT PHYSIOLOGY
出版日期2021
卷号187期号:1页码:289-302
ISSN号0032-0889
DOI10.1093/plphys/kiab147
文献子类Article
英文摘要Seed dormancy and germination are fundamental processes for plant propagation, both of which are tightly regulated by internal and external cues. Phytochrome B (phyB) is a major red/far-red-absorbing photoreceptor that senses light signals that modulate seed dormancy and germination. However, the components that directly transduce that signal downstream of phyB are mostly unknown. Here, we show that the transposase-derived transcription factor FAR-RED ELONGATED HYPOCOTYL3 (FHY3) inhibits seed dormancy and promotes phyB-mediated seed germination in Arabidopsis thaliana. FHY3 physically interacts with phyB in vitro and in vivo. RNA-sequencing and reverse transcription-quantitative polymerase chain reaction analyses showed that FHY3 regulates multiple downstream genes, including REVEILLE2 (RVE2), RVE7, and SPATULA (SPT). Yeast one-hybrid, electrophoresis mobility shift, and chromatin immunoprecipitation assays demonstrated that FHY3 directly binds these genes via a conserved FBS cis-element in their promoters. Furthermore, RVE2, RVE7, and GIBBERELLIN 3-OXIDASE 2 (GA3ox2) genetically act downstream of FHY3. Strikingly, light and phyB promote FHY3 protein accumulation. Our study reveals a transcriptional cascade consisting of phyB-FHY3-RVE2/RVE7/SPT-GA3ox2 that relays environmental light signals and thereby controls seed dormancy and germination.
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ARABIDOPSIS FHY3 ; TRANSCRIPTIONAL REGULATION ; HORMONAL-REGULATION ; LIGHT ; PROTEIN ; RESPONSES ; PLANT ; FAR1 ; PIL5 ; BIOSYNTHESIS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000696244400031
出版者OXFORD UNIV PRESS INC
资助机构National Key Research and Development Program of China [2016YFD0100405, 2017YFA0503802] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB27030205]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/26417]  
专题中科院光生物学重点实验室
作者单位1.China Agr Univ, Coll Biol Sci, State Key Lab Plant Physiol & Biochem, Beijing 100193, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Shuangrong,Yang, Liwen,Li, Jialong,et al. FHY3 interacts with phytochrome B and regulates seed dormancy and germination[J]. PLANT PHYSIOLOGY,2021,187(1):289-302.
APA Liu, Shuangrong,Yang, Liwen,Li, Jialong,Tang, Weijiang,Li, Jigang,&Lin, Rongcheng.(2021).FHY3 interacts with phytochrome B and regulates seed dormancy and germination.PLANT PHYSIOLOGY,187(1),289-302.
MLA Liu, Shuangrong,et al."FHY3 interacts with phytochrome B and regulates seed dormancy and germination".PLANT PHYSIOLOGY 187.1(2021):289-302.

入库方式： OAI收割

来源：植物研究所

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