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玉米子粒的胚乳中含有大量的淀粉和少量的蛋白质。淀粉是由糖类构成的,而蛋白质是由各种氨基酸构成的。玉米子粒的胚乳有许多突变,它们可以分成两大类:一类影响糠类和淀粉的合成与转化,因突变的不同,可把玉米子粒胚乳中的蔗糖含量提高1—10倍,目前生产上出现的甜玉米品种就是利用了这类突变;另一类影响氨基酸和蛋白质的合成与转化,因突变或突变
Maize endosperm contains a lot of starch and a small amount of protein. Starch is composed of sugars, and the protein is composed of a variety of amino acids. Corn kernels have many mutations in the endosperm. They can be divided into two categories: one that affects the synthesis and transformation of chaff and starch. Because of the different mutations, the sucrose content in the endosperm of corn can be increased by 1 to 10 times. At present, Emergence of the sweet corn varieties is the use of such mutations; the other affect amino acid and protein synthesis and transformation, due to mutations or mutations