[1]林宏辉,张大伟,李鹏旭,等.AOX介导的线粒体与叶绿体之间的信号传导[J].西华师范大学学报(自然科学版),2016,37(01):39-43.[doi:10.16246/j.issn.1673-5072.2016.01.005]
 LIN Honghui,ZHANG Dawei,LI Pengxu,et al.AOXDerived Signal Transduction Between Mitochondria and Chloroplast[J].Journal of China West Normal University(Natural Sciences),2016,37(01):39-43.[doi:10.16246/j.issn.1673-5072.2016.01.005]
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AOX介导的线粒体与叶绿体之间的信号传导()
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《西华师范大学学报(自然科学版)》[ISSN:1673-5072/CN:51-1699/N]

卷:
37
期数:
2016年01期
页码:
39-43
栏目:
出版日期:
2016-03-20

文章信息/Info

Title:
AOXDerived Signal Transduction Between Mitochondria and Chloroplast
作者:
林宏辉张大伟李鹏旭翟晨蕾韩雪莹
(四川大学 a.生物资源与生态环境教育部重点实验室;b.生命科学学院,成都610064)
Author(s):
LIN Honghui ZHANG Dawei LI Pengxu ZHAI Chenlei HAN Xueying
(a. Ministry of Education Key Laboratory for BioResource and EcoEnvironment; b.College of Life Science,Sichuan University, Chengdu 610064, China)
关键词:
交替氧化酶代谢信号NADPH / NADP+比率光合效率
Keywords:
alternative oxidase metabolite signaling NADPH/NADP+ ratio photosynthesis activity
分类号:
Q946
DOI:
10.16246/j.issn.1673-5072.2016.01.005
文献标志码:
A
摘要:
交替氧化酶是植物抗氰呼吸途径重要的末端氧化酶。在植物转绿过程中,AOX缺陷突变体表现出叶绿素积累延迟的现象。 最近的研究表明。这种叶绿素积累的延迟在高光条件下更为显著,主要原因在于相关质体酶的转运受阻,而这些酶可以催化四吡咯或叶绿醇的生物合成。同时,抑制抗氰呼吸也伴随着质体NADPH / NADP+比率的增加,尤其是在高光处理条件下。因此表明,光照强度可以通过一个代谢信号在植物转绿过程中影响叶绿素的合成,而这个代谢信号很可能与AOX改变质体中NADPH / NADP+的比率有关。总之,AOX介导的线粒体和叶绿体之间信号传导对维持光合作用能力至关重要。
Abstract:
Alternative oxidase (AOX) plays a key role in cyanide (CN)resistant respiratory pathway, and thatchlorophyll accumulation will be largely delayed in AOX knockout mutant. Recent studies showed that this delay of chlorophyll accumulation was more significant under the high light condition and mainly attributed to the blocked import of the concerned plastidial enzymes, a catalyzer of tetrapyrrole or phytol biosynthesis. Inhibition of cyanideresistant respiration was also accompanied by the increase of plastid NADPH/NADP+ ratio, especially under the high light treatment. It thus suggests that light intensity affects chlorophyll synthesis during greening process by a metabolic signal, which may be attributed to the AOXderived plastidial NADPH/NADP+ ratio change. Therefore, AOXderived signal between mitochondrion and chloroplast is essential for facilitating and sustaining the photosynthetic capacity.

备注/Memo

备注/Memo:
收稿日期:2015-1-22
基金项目:国家基础研究计划(973计划,2015CB150100);国家自然科学基金项目(91417305,31470342,31400211)
作者简介:林宏辉(1968—),男,四川仁寿人,博士,教授,博士生导师,主要从事作物呼吸代谢与光合作用、植物病理、作物抗性生理及其适应逆境的分子机理以及园林植物生物技术领域的研究工作。
通讯作者:林宏辉,E-mail:hhlin@scu.edu.cn
更新日期/Last Update: 2016-03-20