高直链淀粉玉米和普通玉米子粒发育过程中与淀粉合成相关酶活性的比较  

Comparison of Enzymes Activity Associated with Starch Synthesis in the Developing Grains Between High Amylose Corn and Normal Corn

作　　者：高珍妮[1] 王汉宁[1] 

机构地区：[1]甘肃农业大学农学院,兰州730070

出　　处：《玉米科学》2007年第4期86-88,92,共4页Journal of Maize Sciences

基　　金：国家"863"计划项目(2004AA207140)

摘　　要：对高直链淀粉玉米和普通玉米子粒发育过程中与淀粉合成相关酶活性的变化动态进行了比较研究。结果表明,高直链淀粉玉米子粒发育过程中,束缚态淀粉合成酶(GBSS)活性高于普通玉米,可溶性淀粉合成酶(SSS)和淀粉分支酶(SBE)活性低于普通玉米。高直链淀粉玉米总淀粉积累量少、直链淀粉比例大是SSS、GBSS和SBE综合作用的结果。The study was carried out to compare the enzymes activities associated with starch synthesis in the developing grains between high amylose corn and normal corn. The results showed that the activity of granule-bound starch synthase（GBSS） was higher in high amylose corn than that of normal corn, but that of the soluble starch synthase （SSS）, starch branching enzymes（SBE） were lower than that of normal corn. The decrease of total starch and the increase of amylose percent in total starch were resulted from the integrated action of SSS, GBSS and SBE.

关 键 词：高直链淀粉玉米 子粒 淀粉 酶活性 

分 类 号：S513.01[农业科学—作物学]