植物次生代谢基因工程研究进展

被引：108

作者：

杨致荣

毛雪

李润植

机构：

[1] 山西农业大学生物工程中心

[2] 山西农业大学生物工程中心太谷

来源：

植物生理与分子生物学学报 | 2005年 / 01期

关键词：

次生代谢; 基因工程; 限速酶; 转录因子;

D O I：

暂无

中图分类号：

Q943.2 [植物基因工程];

学科分类号：

071007 [遗传学];

摘要：

随着对植物代谢网络日渐全面的认识,应用基因工程技术对植物次生代谢途径进行遗传改良已取得了可喜的进展。对次生代谢途径进行基因修饰的策略包括:导入单个、多个靶基因或一个完整的代谢途径, 使宿主植物合成新的目标物质;通过反义RNA和RNA 干涉等技术降低靶基因的表达水平,从而抑制竞争性代谢途径,改变代谢流和增加目标物质的含量;对控制多个生物合成基因的转录因子进行修饰,更有效地调控植物次生代谢以提高特定化合物的积累。作者结合对大豆种子异黄酮类代谢调控和基因工程改良的研究,着重介绍了花青素和黄酮类物质、生物碱、萜类化合物和安息香酸衍生物等次生代谢产物生物合成的基因工程研究进展。

引用

页码：11 / 18

页数：8

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