高等植物果聚糖合成途径、相关基因和功能的研究进展  

Research Advances of Fructan Biosynthesis,Relevant Genes and its Function in Higher Plants

作　　者：李慧娟[1] 孙建全[2] 李俊峰[3] 

机构地区：[1]山东科技大学化学与环境工程学院,青岛266510 [2]山东省农业科学院畜牧兽医研究所,济南250100 [3]青岛科技大学化工学院,青岛266042

出　　处：《中国农学通报》2007年第9期186-191,共6页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金项目"肌醇和磷脂酰肌醇在不同酵母菌种不同胞外酶分泌调控中的作用"(30370015)

摘　　要：果聚糖是由蔗糖与一个或多个果糖基相连接的聚合物,是一类重要的碳水化合物和渗透调节物质,可提高植物的抗逆性;果聚糖还是一类重要的功能性食品,对人体健康有多种促进作用。植物是果聚糖的主要来源,其合成过程涉及到多种果糖基转移酶,不同的果糖基转移酶组合形成不同类型的果聚糖。较为系统地综述了高等植物果聚糖合成的代谢路径、相关基因、果聚糖的功能及应用前景等方面的研究进展。Fructans, or polyfructosylsucroses, are fructose polymers that start from sucrose. They are major reserve carbohydrates and osmolytes, which render plants tolerant to various stresses. Fructans arc also considered as healthy food ingredients, which promote human health in diverse ways. Plant is the major re- source of fructans. Various fructosyltransferases were related to fructan biosynthesis. Different fructan molecules can be produced by the collcerted action of different fructosyhransferases. Fructan biosynthesis pathway, relevant gencs arid its function were briefly reviewed in the present article.

关 键 词：高等植物 果聚糖 果糖基转移酶 抗逆性 

分 类 号：Q943.2[生物学—植物学]