Kok-Jacon Géraldine A, Ji Qin, Vincken Jean-Paul, Visser Richard G F
Wageningen University, P.O. Box 386, 6700 AJ Wageningen, The Netherlands.
J Plant Physiol. 2003 Jul;160(7):765-77. doi: 10.1078/0176-1617-01028.
Starch is an important storage polysaccharide in many plants. It is composed of densely packed alpha-glucans, consisting of 1,4- and 1,4,6-linked glucose residues. The starch polymers are used in many industrial applications. The biosynthetic machinery for assembling the granule has been manipulated in many different ways to gain insight into the process of starch biosynthesis and to engineer starches with improved functionalities. With respect to the latter, two generic technologies with great potential have been developed: (i) introduction of new linkage types in starch polymers (1,3- and 1,6-linkages), and (ii) engineering granule-boundness. The toolbox to engineer this new generation of starch polymers is discussed.
淀粉是许多植物中一种重要的储存多糖。它由紧密堆积的α-葡聚糖组成，这些α-葡聚糖由1,4-和1,4,6-连接的葡萄糖残基构成。淀粉聚合物被用于许多工业应用中。为了深入了解淀粉生物合成过程并设计出具有改良功能的淀粉，人们以多种不同方式对组装颗粒的生物合成机制进行了操控。关于后者，已开发出两种具有巨大潜力的通用技术：（i）在淀粉聚合物中引入新的连接类型（1,3-和1,6-连接），以及（ii）设计颗粒结合性。本文讨论了用于设计新一代淀粉聚合物的工具箱。
