摘要
环境胁迫下,植物细胞会过量积累甲基乙二醛(methylglyoxal, MG)、乙二醛(glyoxal, GO)和3-脱氧葡糖醛酮(3-deoxyglucosone, DOG),尤其以MG的积累更为显著,继而产生羰基胁迫,导致生物大分子蛋白质、DNA、RNA、脂质和生物膜的破坏。面对此胁迫,植物进化出一套独特而有效的清除机制,即乙二醛酶系统(glyoxalasesystem),以清除过量的MG,维持其在细胞中的动态平衡,发挥信号功能。本文基于最新的研究进展,对乙二醛酶系统的组成、结构、功能、分布、细胞定位、基因家族,以及其在植物响应和适应环境胁迫中的作用进行了综述,并提出了未来的研究方向。
Under environmental stress, the plant cells can excessively accumulate methylglyoxal(MG), glyoxal(GO) and 3-deoxyglucosone(DOG), especially MG, which in turn leads to carbonyl stress, namely damage to biomacromolecules such as proteins, lipids, nucleic acids and biomembrane. To cope with this stress, plants have developed a unique and effective scavenging mechanism, glyoxalase system, to scavenger excessive MG and maintain its homeostasis in plant cells, further exerting its signaling molecule function. Following the emerging progress on glyoxalase system in plants, in this review, the constitution, structure, function, distribution, cellular localization and gene family of glyoxalase system in plants were discussed, and the role of glyoxalase system in response and adaptation of plants to environmental stress was summarized, as well as the research direction also was presented.
作者
叶芯妤
邱雪梅
王月
李忠光
YE Xin-Yu;QIU Xue-Mei;WANG Yue;LI Zhong-Guang(Key Laboratory of Biomass Energy and Environmental Biotechnology of Yunnan Province,Engineering Research Center of Sustainable Development and Utilization of Biomass Energy,Ministry of Education,School of Life Sciences,Yunnan Normal University,Kunming 650500,China)
出处
《植物生理学报》
CAS
CSCD
北大核心
2019年第4期401-410,共10页
Plant Physiology Journal
基金
国家自然科学基金(31760069和31360057)
云南师范大学研究生科研创新基金(yjs2018118)~~
关键词
甲基乙二醛
乙二醛酶系统
环境胁迫
耐逆性
响应和适应
methylglyoxal
glyoxalase system
environmental stress
stress tolerance
response and adaptation
