植物黄烷酮-3-羟化酶基因研究进展

Research Progress in Plant Flavanone-3-hydroxylase Gene

黄烷酮3-羟化酶(flavanone 3-hydroxylase,F3H)作为植物进入不同类黄酮代谢物分支的一个中枢酶,可以催化生成花青素和黄酮醇合成的共同前体物质二氢黄酮醇,在类黄酮合成途径中起着十分重要的调控作用。本文从F3H基因的发现、结构功能和表达调控等方面,综述了F3H基因在调节植物花青素和黄酮醇合成中的研究进展及调控网络,并对未来研究方向进行了展望。期望为F3H基因在植物类黄酮代谢合成途径的调控机制研究提供参考,也有助于利用F3H开展基因工程研究,定向培育植物新种质。

Flavanone 3-hydroxylase(F3H),as a central enzyme for plants to enter the branch of different flavonoid metabolites,can generate dihydroflavonol,a common precursor substance for the synthesis of anthocyanins and flavonols,and it plays a very important regulatory role in the synthesis of flavonoids.From the discovery,structure,function,and expression regulation of the F3H gene,this article reviews the research progress and regulation network of F3H gene in regulating the synthesis of anthocyanins and flavonols,and prospects the future direction.It is aimed to provide a reference for understanding the regulation mechanism of F3H gene on the metabolic synthesis pathway of plant flavonoids,and also help researchers to use F3H with genetic engineering method to obtain the new plant germplasm via directive breeding.