类胡萝卜素生物合成途径及其控制与遗传操作

被引：30

作者：

赵文恩

李艳杰

崔艳红

乔宪生

不详

机构：

[1] 中国农业科学院郑州果树研究所

[2] 郑州大学化工学院

[3] 中国农业科学院郑州果树研究所郑州

[4] 郑州

来源：

西北植物学报 | 2004年 / 05期

关键词：

类胡萝卜素生物合成途径; 生物合成酶; 合成途径控制; 基因转化;

D O I：

暂无

中图分类号：

Q946 [植物生物化学];

学科分类号：

071001 ;

摘要：

类胡萝卜素在真菌和植物细胞胞液/内质网上是由乙酰CoA经甲羟戊酸途径合成的,在细菌与植物质体中由磷酸甘油醛与丙酮酸经1-脱氧木酮糖-5-磷酸途径合成.形成的异戊烯基焦磷酸经多次缩合生成第一个类胡萝卜素八氢番茄红素,再经脱氢、环化、羟基化、环氧化等转变为其它类胡萝卜素.类胡萝卜素生物合成中涉及的酶都是膜结合的或整合入膜中的.类胡萝卜素合成是通过底物可利用性与环化分支方式进行控制的.白色体到叶绿体的转变以及花与果实成熟时类胡萝卜素合成增加是在基因转录水平调节的.进行类胡萝卜素合成酶基因的转化,可增加转化体类胡萝卜素的积累.

引用

页码：930 / 942

页数：13

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