植物花色主要受由类胡萝卜素和花青素两大类组成的细胞色素所控制。一般来说,自开花至凋谢,其花色保持相对稳定,但也有一些植物,随着花朵开放时间的延续,其花瓣细胞中的细胞液酸碱度、盐类和酚类物质发生变化,从而引起花色变化。如花青素的颜色在酸性细胞液中呈红色、中性液中呈紫色、碱性液中则呈蓝色,它与其他细胞色素成分的不同配比,就形成了各种颜色。在变色花卉的花期,由于每朵花开花有先后,同一植株上就会出现多种花色,看上去 Plant color is mainly controlled by the cytochromes consisting of two major classes of carotenoids and anthocyanins. In general, the flower color is relatively stable from flowering to withering, but there are also some plants that change their floral color due to changes in the cell pH, salts and phenols in the petal cells as the flower opening time continues . Such as the color of anthocyanins in acidic liquid red, neutral liquid purple, alkaline liquid was blue, it and other cytochromes in different proportions, the formation of a variety of colors. In the flowering of flowers, because each flowering flower successively, there will be a variety of colors on the same plant, it seems