COG1-A master transcription factor regulating photosynthesis  

作　　者：Jan Ferdinand Penzler Tatjana Kleine Dario Leister 

机构地区：[1]Plant Molecular Biology,Faculty of Biology,Ludwig-Maximilians-University(LMU)Munich,Martinsried-Planegg,82152 Munich,Germany

出　　处：《Molecular Plant》2023年第12期1890-1892,共3页分子植物（英文版）

基　　金：the Deutsche Forschungsgemeinschaft(TR175 to T.K.[C01]and D.L.[C05]and EXC 2089 e-conversion to D.L.);the European Research Council(Synergy grant 854126-PhotoRedesign to D.L.),and LMU Munich(Biofabrication)for their support.

摘　　要：COG1 CANENHANCE PHOTOSYNTHESIS AND PLANT GROWTH Recently,Wei et al.(2023)report that overexpression or a gain-offunction mutation of COGWHEEL1(COG1)gene,which encodes a transcription factor belonging to the DNA binding with one finger(Dof)protein family,can increase growth and biomass in Arabidopsis thaliana.Similarly,overexpression of any of its six paralogs,CYCLING DOF FACTORS 1-6,also leads to increased growth and biomass production,implying that these seven Dof proteins have partially redundant functions.Accordingly,several of the seven Dof genes must be knocked out to significantly reduce growth and biomass production;the septuple mutants show severely reduced growth but are still viable.COG1 positively modulates the accumulation of transcripts of several photosynthetic genes and,in turn,the corresponding proteins and binds to the promoters of most LHC genes.Changes in gene expression related to photosynthesis increase the efficiency of photosynthesis.Overexpression of two closely related Brassica rapa COG1 homologs in A.thaliana or Arabidopsis COG1 in Nicotiana benthamiana,could cause an increase in growth and biomass production.These results indicate that the effects of COG1 are not confined to a specific species.

关 键 词：species. functions. ARABIDOPSIS 

分 类 号：Q94[生物学—植物学]