摘要
光呼吸是光合自养生物为适应环境O_2升高而进化出的一条代谢途径。光呼吸产生C3植物中70%的H_2O_2、合成氨基酸、参与氮的同化、生成一碳单位及参与响应植物的多种抗逆过程等,表明光呼吸在植物的正常生长发育与逆境响应中不可或缺。目前光呼吸途径中除部分转运蛋白未知外,光呼吸的主要代谢途径已经比较清楚,但对如此重要的代谢过程是如何受到调控的,目前的认识却非常有限。文章在总结光呼吸代谢途径研究进展的基础上,从转录水平、蛋白质修饰水平、蛋白质间互作及生物活性物质的调控等多个层面,介绍光呼吸调控的最新进展,以便为今后光呼吸的调控研究理清思路,并最终利用相关知识改良植物的生长和抗逆性奠定基础。
Photorespiration is a metabolic pathway evolved by photoautotrophic organisms to adapt to the increase of environmental oxygen.Photorespiration has some important physiologic and biochemical functions,such as producing 70%amount H2O2 in C3 plant,synthesizing amino acids,involving in nitrogen assimilation,forming C1 unit,and responding to stress resistance.Photorespiration is indispensable in the normal growth of plants and the response to various stress.At present,except for some transporters,the main pathway of photorespiration is well understood.However,knowledge about how this important metabolism is regulated is very limited.In this paper,the recent development of photorespiration regulation will be discussed from various levels,such as transcription,post-translation modification,protein-protein interaction and bioactive substances,on the basis of summarizing the research progress of photorespiration pathway.Discussions here will help to clarify the study on photorespiration regulation,and promote plant growth and stress resistance by using these regulation mechanisms in the future.
作者
侯学文
李英杰
钟琪
彭新湘
HOU Xue-Wen;LI Ying-Jie;ZHONG Qi;PENG Xin-Xiang(State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources,College of Life Sciences,South China Agricultural University,Guangzhou 510642,China)
出处
《植物生理学报》
CAS
CSCD
北大核心
2019年第3期255-264,共10页
Plant Physiology Journal
基金
广州市科技计划项目(201707010032和201607020006)~~
关键词
光呼吸
光呼吸调控
转录水平调控
翻译后修饰调控
酶活性调控
photorespiration
photorespiration regulation
transcriptional regulation
post-translational modification
regulation of enzyme activity
