Regulation of Calvin-Benson cycle enzymes under high temperature stress  

作　　者：Juan-Hua Chen Ming Tang Xue-Qi Jin Han Li Li-Sha Chen Qing Long Wang Ai-Zhen Sun Yin Yi Fang-Qing Guo 

机构地区：[1]National Key Laboratory of Plant Molecular Genetics and CAS Center for Excellence in Molecular Plant Sciences,Institute of Plant Physiology and Ecology,Chinese Academy of Sciences,300 Fenglin Road,Shanghai 200032,China [2]Key Laboratory of Plant Physiology and Developmental Regulation,School of Life Sciences,Guizhou Normal University,Guiyang 550001,Guizhou,China [3]Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China,Guizhou Normal University,Guiyang 550001,Guizhou,China [4]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《aBIOTECH》2022年第1期65-77,共13页生物技术通报（英文版）

基　　金：This work was supported by grants from the Minitry of Science and Technology of China(National Key R&D Program of China,2020YFA0907604);the National Natural Science Founda-tion of China(U1812401,31770314,32000211 and 31600225);Science and Technology Commission of Shanghai Municipality(19ZR1466100);the Chinese Academy of Sciences(The Stra-tegic Priority Research Program,XDB27040105).

摘　　要：The Calvin Benson cycle(CBC)consists of three critical processes,including fixation of CO_(2) by Rubisco,reduction of 3-phosphoglycerate(3PGA)to triose phosphate(triose-P)with NADPH and ATP generated by the light reactions,and regeneration of ribulose 1,5-bisphosphate(RuBP)from triose-P.The activ-ities of photosynthesis-related proteins,mainly from the CBC,were found more significantly affected and regulated in plants challenged with high temperature stress,incuding Rubisco,Rubisco activase(RCA) and the enzymes involved in RuBP regeneration,such as sedoheptulose-1,7-bisphosphatase(SBPase).Over the past years,the regulatory mechanism of CBC,especially for redox-regulation,has attracted major interest,because balancing flux at the various enzymatic reactions and maintaining metabolite levels in a range are of critical importance for the optimal operation of CBC under high temperature stress,providing insights into the genetic manipulation of photosynthesis.Here,we summarize recent progress regarding the identification of various layers of regulation point to the key enzymes of CBC for acclimation to environmental temperature changes along with open questions are also discussed.

关 键 词：Calvin-Benson cycle High temperature stress Redox regulation RUBISCO Rubisco activase SBPase CO_(2)fixation 

分 类 号：Q94[生物学—植物学]