紫色芸薹属蔬菜花青素合成调控研究进展

Research Advances on Biosynthesis and Regulation of Anthocyanin in Purple Brassica Vegetables

本文主要利用拟南芥、玉米、牵牛花和金鱼草的类黄酮合成途径推测并绘制了芸薹属花青素合成途径;紫色芸薹属花青素合成结构基因CHS、F3'5'H、DFR和ANS的高水平转录是芸薹属着色的直接原因;调控花青素合成途径中后期合成基因的R2R3-MYB类转录因子启动子突变并高水平转录是芸薹属蔬菜组织中花青素大量积累的关键。

In this paper,the schematic presentation of anthocyanin biosynthetic pathway in purple Brassica vegetables was drawn according to that of Arabidopsis,maize,petunia,snapdragon and other plants. High-level expression of structural genes（ CHS,F3＇5＇H,DFR and ANS） of anthocyanin synthesis was the efficient amse of purple Brassica vegetables colouring. High- level expression caused by promoter mutation of R2R3-MYB transcription factor genes which regulated the expression of late biosynthesis genes of anthocyanin synthesis was the important cause of anthocyanin accumulation in purple Brassica vegetables.