参与木葡聚糖合成的糖基转移酶基因研究进展  

Glycosyltransferase Genes Involved in Xyloglucan Biosynthesis

作　　者：解敏敏[1] 晁江涛[1] 孔英珍[1] 

机构地区：[1]中国农业科学院烟草研究所,中国农业科学院烟草遗传改良与生物技术重点开放实验室,青岛266101

出　　处：《植物学报》2015年第5期644-651,共8页Chinese Bulletin of Botany

基　　金：国家科技支撑计划(No.2015BAD15B03-05);国家自然科学基金(No.31470291);中国农业科学院青年英才计划

摘　　要：半纤维素多糖木葡聚糖(Xy G)存在于大多数植物的初生细胞壁中,对细胞壁的结构组织和生长发育具有重要的调控作用。Xy G在植物进化中存在结构的多样性。该文概述了参与Xy G合成的糖基转移酶的最新研究进展,Xy G合成需要多种糖基转移酶参与,这些酶类很可能以蛋白酶复合体的形式存在并发挥作用,Xy G的结构和组成的改变对植物的生长发育也产生影响。The hemicellulosic polysaccharide xyloglucan（Xy G）, found in the primary cell walls of most plants, plays important roles in structural organization of plant cell walls and regulation of growth and development. Recent research in structural characterization of Xy Gs from different plant species revealed the diversification of Xy G during plant evolution. This paper reviews progress in studies of glycosyltransferase genes involved in Xy G biosynthesis. Most of the Xy G-specific glycosyltransferases have been identified, and some of them appear to form a complex for involvement in Xy G biosynthesis. We discuss how changes in Xy G structure affect plant growth and development.

关 键 词：木葡聚糖 糖基转移酶 细胞壁 生物合成 

分 类 号：Q943.2[生物学—植物学]