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A PIF1/PIF3-HY5-BBX23 Transcription Factor Cascade Affects Photomorphogenesis | |
Zhang, Xinyu1; Huai, Junling; Shang, Fangfang1; Xu, Gang1; Tang, Weijiang; Jing, Yanjun; Lin, Rongcheng1 | |
2017 | |
发表期刊 | PLANT PHYSIOLOGY |
ISSN | 0032-0889 |
卷号 | 174期号:4页码:2487-2500 |
摘要 | Light signaling plays an essential role in controlling higher plants' early developmental process termed as photomorphogenesis. Transcriptional regulation is a vital mechanism that is orchestrated by transcription factors and other regulatory proteins working in concert to finely tune gene expression. Although many transcription factors/regulators have been characterized in the light-signaling pathway, their interregulation remains largely unknown. Here, we show that PHYTOCHROME-INTERACTING FACTOR3 (PIF3) and PIF1 transcription factors directly bind to the regulatory regions of ELONGATED HYPOCOTYL5 (HY5) and a B-box gene BBX23 and activate their expression in Arabidopsis (Arabidopsis thaliana). We found that BBX23 and its close homolog gene BBX22 play a redundant role in regulating hypocotyl growth, and that plants overexpressing BBX23 display reduced hypocotyl elongation under red, far-red, and blue light conditions. Intriguingly, BBX23 transcription is inhibited by light, whereas its protein is degraded in darkness. Furthermore, we demonstrate that HY5 physically interacts with BBX23, and these two proteins coordinately regulate the expression of both light-induced and light-repressed genes. BBX23 is also recruited to the promoter sequences of the light-responsive genes in a partial HY5-dependent manner. Taken together, our study reveals that the transcriptional cascade consisting of PIF1/PIF3, HY5, and BBX23 controls photomorphogenesis, providing a transcriptional regulatory layer by which plants fine-tune their growth in response to changing light environment. |
学科领域 | Genetics & Heredity |
DOI | 10.1080/23802359.2017.1413291 |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | B-BOX PROTEIN ; LIGHT SIGNAL-TRANSDUCTION ; ZINC-FINGER PROTEINS ; SEEDLING PHOTOMORPHOGENESIS ; MEDIATED DEGRADATION ; GENE-EXPRESSION ; COP1-MEDIATED UBIQUITINATION ; ARABIDOPSIS-THALIANA ; PLANT DEVELOPMENT ; BLUE-LIGHT |
WOS记录号 | WOS:000423158500245 |
出版者 | AMER SOC PLANT BIOLOGISTS |
文献子类 | Article |
出版地 | ROCKVILLE |
EISSN | 1532-2548 |
资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31325002, 31570310] ; Ministry of Agriculture of ChinaMinistry of Agriculture, China [2016ZX08009-003] ; National Key Research and Development Program of China [2017YFA0503800] |
作者邮箱 | rclin@ibcas.ac.cn |
作品OA属性 | Green Published, gold |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/22098 |
专题 | 中科院光生物学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Key Lab Photobiol, CAS Ctr Excellence Mol Plant Sci, Inst Bot, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Xinyu,Huai, Junling,Shang, Fangfang,et al. A PIF1/PIF3-HY5-BBX23 Transcription Factor Cascade Affects Photomorphogenesis[J]. PLANT PHYSIOLOGY,2017,174(4):2487-2500. |
APA | Zhang, Xinyu.,Huai, Junling.,Shang, Fangfang.,Xu, Gang.,Tang, Weijiang.,...&Lin, Rongcheng.(2017).A PIF1/PIF3-HY5-BBX23 Transcription Factor Cascade Affects Photomorphogenesis.PLANT PHYSIOLOGY,174(4),2487-2500. |
MLA | Zhang, Xinyu,et al."A PIF1/PIF3-HY5-BBX23 Transcription Factor Cascade Affects Photomorphogenesis".PLANT PHYSIOLOGY 174.4(2017):2487-2500. |
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334740421.pdf(542KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
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