Abstract: With the development of the economy and society, there are greater requirements for the aesthetics of garden plants. The color-leafed plants have gradually become the new favorite of the market. Anthocyanins play  important roles in the formation of leaf color. This paper reviewed the metabolic pathway, the key structural genes, and transcription factors involved in the anthocyanin metabolism of leaves, summarized the effects of the external factors on leaf color via the regulation of anthocyanin metabolism, and discussed the way to improve the color-leafed plants by changing anthocyanin content with molecular biological methods in order to provide references for the development and utilization of color-leafed plants.

Key words: color-leafed plants, anthocyanin, key enzyme gene, transcription factor, genetic engineering

摘要： 随着经济发展和社会进步，人们对于园林植物的审美有了更高的要求，彩叶植物逐渐成为了市场的新宠，而花青素对叶片颜色形成具有重要的作用。阐述了花青素相关的代谢途径及叶片中花青素代谢的关键结构基因和转录调控因子，归纳了多个环境因子通过调控花青素代谢对叶片颜色的影响，并探讨了通过分子生物学手段改变花青素含量以改良彩叶植物的途径，以期为彩叶植物的开发和利用提供参考。

关键词: 彩叶植物, 花青素, 关键酶基因, 转录因子, 基因工程