拟南芥花青素合成途径重要转录因子的研究进展

Advances of transcription factors in biosynthesis pathways of anthocyanin in Arabidopsis thaliana

花青素是一种水溶性色素,作为植物次生代谢的一种重要产物,除给予植物缤纷的色彩之外,还有相当可观的药用价值。此外,花青素在应对各种生物及非生物胁迫方面具有积极的意义。因此,进一步探讨植物花青素的生物学功能仍然具有重要的意义。在拟南芥中,花青素合成途径主要依靠MYB、bHLH、WD40-repeat以及bZIP4种转录因子的调控。文章结合目前国内外关于花青素合成途径过程中4种重要转录因子的文献报道,综述这4种转录因子的研究现状及调控机理,并对花青素的研究前景作出展望,为更好地研究花青素生物学功能奠定基础。

As a large group of plant secondary metabolites that can give us a colorful world, anthocyanin is the major water-soluble pigments, and has considerable medicinal value. Furthermore, anthocyanin has a positive function to response to various biotic stress and abiotic stress. Therefore, it is important to study the biological function of anthocyanin in plants. Synthesis of anthocyanin is regulated by at least four classes of transcription factors in Arabidopsis thaliana, i. e. MYB, bHLH, WD40-repeat, and bZIP. In this paper, combined with the domestic and foreign literatures on the four important transcription factors in the process of the anthocyanin synthesis pathway, we summarizes the research status and regulation mechanism of the four kinds of transcription factors, and discussed the prospect future of the research of anthocyanin in order to study anthocyanin biology function better.