典型文献
COP1 SUPPRESSOR 6 represses the PIF4 and PIF5 action to promote light-inhibited hypocotyl growth
文献摘要：
Light signaling precisely controls photo-morphogenic development in plants. PHYTO-CHROME 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 regu-lator of light signaling. Loss of CSU6 function largely rescues the cop1-6 constitutively photo-morphogenic phenotype. CSU6 promotes hypo-cotyl growth in the dark, but inhibits hypocotyl elongation in the light. CSU6 not only associates with the promoter regions of PIF4 and PIF5 to in-hibit their expression in the morning, but also di-rectly 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.
文献关键词：
中图分类号：
作者姓名：
Hongxia Lan;Yueqin Heng;Jian Li;Mengdi Zhang;Yeting Bian;Li Chu;Yan Jiang;Xuncheng Wang;Dongqing Xu;Xing Wang Deng
作者机构：
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;State Key Laboratory of Crop Genetics and Germplasm Enhancement,National Center for Soybean Improvement,College of Agriculture,Nanjing Agricultural University,Nanjing 210095,China;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;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
文献出处：
引用格式：
[1]Hongxia Lan;Yueqin Heng;Jian Li;Mengdi Zhang;Yeting Bian;Li Chu;Yan Jiang;Xuncheng Wang;Dongqing Xu;Xing Wang Deng-.COP1 SUPPRESSOR 6 represses the PIF4 and PIF5 action to promote light-inhibited hypocotyl growth)[J].植物学报（英文版）,2022(11):2097-2110
A类：
PIF5,PHYTO,CHROME,INTERACTING,CONSTITUTIVELY,PHOTOMORPHOGENIC,CSU6,cop1,cotyl
B类：
COP1,SUPPRESSOR,represses,PIF4,action,light,inhibited,hypocotyl,growth,Light,signaling,precisely,controls,photo,morphogenic,plants,FACTOR,play,critical,roles,regulation,this,developmental,process,In,study,we,report,functions,key,lator,Loss,largely,rescues,constitutively,phenotype,promotes,dark,but,inhibits,elongation,only,associates,promoter,regions,their,morning,also,di,rectly,interacts,both,transcriptional,activation,activity,negatively,group,regulated,gene,expressions,Mutations,are,epistatic,loss,suggesting,that,upstream,Taken,together,by,regulating,biochemical
AB值：
0.416021
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