Title | COP1 SUPPRESSOR 6 represses the PIF4 and PIF5 action to promote light-inhibited hypocotyl growth |
Author | |
Corresponding Author | Xu,Dongqing; Deng,Xing Wang |
Joint first author | Lan,Hongxia; Heng,Yueqin; Li,Jian |
Publication Years | 2022
|
DOI | |
Source Title | |
ISSN | 1672-9072
|
EISSN | 1744-7909
|
Abstract | Light signaling precisely controls photomorphogenic development in plants. PHYTOCHROME INTERACTING FACTOR 4 and 5 (PIF4 and PIF5) play critical roles in the regulation of this developmental process. In this study, we report CONSTITUTIVELY PHOTOMORPHOGENIC 1 SUPPRESSOR 6 (CSU6) functions as a key regulator of light signaling. Loss of CSU6 function largely rescues the cop1-6 constitutively photomorphogenic phenotype. CSU6 promotes hypocotyl growth in the dark, but inhibits hypocotyl elongation in the light. CSU6 not only associates with the promoter regions of PIF4 and PIF5 to inhibit their expression in the morning, but also directly interacts with both PIF4 and PIF5 to repress their transcriptional activation activity. CSU6 negatively controls a group of PIF4- and PIF5-regulated gene expressions. Mutations in PIF4 and/or PIF5 are epistatic to the loss of CSU6, suggesting that CSU6 acts upstream of PIF4 and PIF5. Taken together, CSU6 promotes light-inhibited hypocotyl elongation by negatively regulating PIF4 and PIF5 transcription and biochemical activity. |
Keywords | |
URL | [Source Record] |
Indexed By | |
Language | English
|
SUSTech Authorship | First
; 共同第一
; Corresponding
|
Funding Project | National Natural Science Foundation of China[
|
WOS Research Area | Biochemistry & Molecular Biology
; Plant Sciences
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WOS Subject | Biochemistry & Molecular Biology
; Plant Sciences
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WOS Accession No | WOS:000859045200001
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Publisher | |
Scopus EID | 2-s2.0-85138655307
|
Data Source | Scopus
|
Citation statistics |
Cited Times [WOS]:0
|
Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/402763 |
Department | SUSTech-Peking University National Institute of Plants and Food 生命科学学院 生命科学学院_生物系 |
Affiliation | 1.Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes,Department of Biology,Institute of Plant and Food Sciences,School of Life Sciences,Southern University of Science and Technology,Shenzhen,518055,China 2.State Key Laboratory of Crop Genetics and Germplasm Enhancement,National Center for Soybean Improvement,College of Agriculture,Nanjing Agricultural University,Nanjing,210095,China 3.Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China,Institute of Plant and Environment Protection,Beijing Academy of Agriculture and Forestry Sciences,Beijing,100097,China 4.State Key Laboratory of Protein and Plant Gene Research,Peking-Tsinghua Center for Life Sciences,School of Advanced Agriculture Sciences and School of Life Sciences,Peking University,Beijing,100871,China |
First Author Affilication | SUSTech-Peking University National Institute of Plants and Food; Department of Biology; School of Life Sciences |
Corresponding Author Affilication | SUSTech-Peking University National Institute of Plants and Food; Department of Biology; School of Life Sciences |
First Author's First Affilication | SUSTech-Peking University National Institute of Plants and Food; Department of Biology; School of Life Sciences |
Recommended Citation GB/T 7714 |
Lan,Hongxia,Heng,Yueqin,Li,Jian,et al. COP1 SUPPRESSOR 6 represses the PIF4 and PIF5 action to promote light-inhibited hypocotyl growth[J]. Journal of Integrative Plant Biology,2022.
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APA |
Lan,Hongxia.,Heng,Yueqin.,Li,Jian.,Zhang,Mengdi.,Bian,Yeting.,...&Deng,Xing Wang.(2022).COP1 SUPPRESSOR 6 represses the PIF4 and PIF5 action to promote light-inhibited hypocotyl growth.Journal of Integrative Plant Biology.
|
MLA |
Lan,Hongxia,et al."COP1 SUPPRESSOR 6 represses the PIF4 and PIF5 action to promote light-inhibited hypocotyl growth".Journal of Integrative Plant Biology (2022).
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