采用转基因技术育出紫色西红柿美国科学家最近培育出一种新型转基因西红柿,它因含有一种名为花色素苷的物质而呈现出紫色,具有预防癌症和心肌梗塞的功效。花色素苷是一种黄酮类化合物,具有预防心脏疾病的功效,一些植物如葡萄、紫甘蓝、茄子等均含有这种物质,含量不同,颜色也不? Breeding Purple Tomatoes Using Genetically Modified Technology U.S. scientists recently developed a new type of transgenic tomato that has the potential to prevent cancer and myocardial infarction by containing a substance called anthocyanin that is purple in color. Anthocyanins are a kind of flavonoids, have the effect of preventing heart disease, some plants such as grapes, purple cabbage, eggplant, etc. contain this substance, the content is different, the color is not?