Starch Biosynthesis and the Key Enzymes of Root and Tuber Plants

作者: 赵姗姗 , 周文智 :中国科学院上海生命科学研究院,植物生理生态研究所,植物分子遗传国家重点实验室,上海; 杨 俊 , 张 鹏 :中国科学院上海生命科学研究院,植物生理生态研究所,植物分子遗传国家重点实验室,上海;中国科学院上海辰山植物科学研究中心,上海辰山植物园,上海;

关键词: 薯类作物淀粉生物合成直链淀粉支链淀粉关键酶 Tuber and Root Crops Starch Biosynthesis Amylose Amylopectin Key Enzyme



Abstract: The tuber and root crops are rich in starch in their storage organs and provide important raw mate- rials not only for food and processed food, but also for modified starches and bioenergy. Starch is composed of two types of molecules, amylose and amylopectin. It can only be produced through biosynthetic pathway, a process that involves multiple enzymes of conserved functions in many crops, such as ADP-glucose phos- phorylase, starch synthases, starch branching enzymes and starch debranching enzymes. Here we review re- cent progresses in biological functions and mechanisms of these key enzymes in starch biosynthesis, include- ing new identified enzymes such as starch phosphorylase and D-enzyme. Their features in amylose and amy- lopectin biosynthesis of tuber and root crops were also explored. It not only provides important information for identification and functional analysis of key enzymes in starch biosynthesis but also bridges the gap be- tween starch structure and property of tuber and root crops.

文章引用: 赵姗姗 , 杨 俊 , 周文智 , 张 鹏 (2013) 薯类植物中的淀粉生物合成及关键酶。 植物学研究, 2, 24-33. doi: 10.12677/BR.2013.21005


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