植物MEP途径的代谢调控机制
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引用本文:张松涛,陈红丽,崔 红,杨惠娟,刘国顺.植物MEP途径的代谢调控机制[J].西北植物学报,2012,32(7):1500~1504
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作者单位
张松涛,陈红丽,崔 红,杨惠娟,刘国顺* (国家烟草栽培生理生化研究基地河南农业大学 烟草学院郑州 450002) 
中文摘要:萜类代谢途径是植物中最重要的次生代谢途径之一,对其有效的调控决定着植物的生长发育、抗性及品质等各个方面。植物中类萜合成的前体物在质体中是由2 C 甲基 D 赤藓糖醇 4 磷酸(2 C Methyl D Erythritol 4 Phosphate,MEP)途径合成的,MEP途径中的许多基因除了受到多基因编码和转录水平的调节外,还受到转录后调节机制的调节,而转录后调节是一种新发现的调节方式,其机制还不是很清楚。该文重点对近年来国内外有关植物MEP途径的多种调节方式,尤其是转录后调节的调节机制及其可能参与的信号分子方面的研究进展进行综述,为植物的MEP途径的代谢调控提供参考。
中文关键词:MEP途径  转录后调节  次生代谢  萜类
 
Multiple Regulation Mechanisms of MEP Pathway in Plant
Abstract:Terpenoids metabolism is one of the most important pathways of secondary metabolism in plant.The regulatory mechanisms that modulate this metabolic route will determine plant growth and development,resistance,quality and other aspects.The terpene precursors are synthesized by the 2 C Methyl D Erythritol 4 Phosphate (MEP) pathway in plant plastids.Recent studies have shown that,many genes involved in MEP pathway are not only regulated by multiple genes encoding and the transcript level,but also by post transcriptional mechanism.Post transcriptional regulation is a novel regulation mechanism described recently for this way and the mechanism is not clear.We review here various regulatory mechanisms of MEP pathway in plant,especially the mechanism and signal molecular that may be involved in post transcriptional regulation,which may provide the theory basis for the research of regulation in this pathway.
keywords:MEP pathway  post transcriptional regulation  secondary metabolism  terpenoids
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