外胚乳（perispern）是指部分植物种子中由珠心发育成具胚乳作用的组织。
壁呈波浪形的外胚乳细胞富含淀粉粒。
外胚乳细胞主要含许多脂类物质及少量蛋白质颗粒，不含淀粉。
Cells of perisperm contain mainly lipids, a small amount of protein granulars but no starch grain.
除果皮沉积花色素等色素外，有色稻颖果的生长、胚乳发育与常规水稻品种基本相同。
The caryopsis growth and endosperm development of colored rice were basically the same as conventional rice, with the exception in its anthocyanidin accumulation in the pericarp.
应用推荐