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植物甜菜碱合成途径及基因工程研究进展
引用本文:江香梅,黄敏仁,王明庥.植物甜菜碱合成途径及基因工程研究进展[J].中国生物工程杂志,2002,22(4):49-56.
作者姓名:江香梅  黄敏仁  王明庥
作者单位:南京林业大学林木遗传和基因工程重点实验室, 南京 210037
摘    要:甜菜碱是公认的在细胞中起着无毒渗透保护作用的细胞相溶性物质 ,广泛存在于植物、动物、细菌等多种生物体中。植物中甜菜碱因其结构不同 ,其生物合成途径和催化合成所需要的酶也各不相同。综述了近年来甜菜碱生物合成途径、相关基因的克隆及基因工程研究进展 ,包括从不同生物体中克隆、鉴定的甜菜碱合成的相关基因及其定位、作用机理、同源性比较及表达差异、在转基因植物中的遗传稳定性以及转基因植物的抗盐耐旱、抗寒性等。

关 键 词:甜菜碱  CMO基因  BADH基因  细胞相溶性物质  基因工程  研究进展  

A Review on Betaine-Biosynthesized Pathway and Genetic Engineering in Plants
Jiang Xiangmei\ Huang Minren\ Wang Mingxiu.A Review on Betaine-Biosynthesized Pathway and Genetic Engineering in Plants[J].China Biotechnology,2002,22(4):49-56.
Authors:Jiang Xiangmei\ Huang Minren\ Wang Mingxiu
Institution:Key Laboratory for Forestry Genetics and Gene Engineering Nanjing Forestry University\ Nanjing\ 210037
Abstract:Betaines are universally accepted non toxic osmoprotectants or compatible solutes to cells. They widely exist in many organisms such as plants, animals and bacteria. Because of different structures of betaines in plants, the biosynthetic pathways and the needed catalyzed enzymes are very different. This paper reviewed on the research progress for the betaine biosynthesized pathways, the cloned related genes and the genetic engineering in recent years, including the origination, localization, genetic mechanism, homological comparison of the genes; and the expressive difference and stability, the salt\|, low temperature- and drought resistance in transgenic plants, and so on.
Keywords:betaine/CMO  gene/BADH  gene/compatible  solute/genetic  engineering/progress  review
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