Department of Biology, University of North Caroline, Chapel Hill, NC, USA.
Curr Top Microbiol Immunol. 2018;418:111-141. doi: 10.1007/82_2018_100.
Agrobacterium exopolysaccharides play a major role in the life of the cell. Exopolysaccharides are required for bacterial growth as a biofilm and they protect the bacteria against environmental stresses. Five of the exopolysaccharides made by A. tumefaciens have been characterized extensively with respect to their structure, synthesis, regulation, and role in the life of the bacteria. These are cyclic-β-(1, 2)-glucan, cellulose, curdlan, succinoglycan, and the unipolar polysaccharide (UPP). This chapter describes the structure, synthesis, regulation, and function of these five exopolysaccharides.
农杆菌胞外多糖在细胞的生命活动中起着重要作用。胞外多糖是生物膜形成所必需的，并且可以保护细菌免受环境胁迫。已经从根癌农杆菌中鉴定出 5 种胞外多糖，它们的结构、合成、调控以及在细菌生命活动中的作用都得到了广泛的研究。这 5 种胞外多糖分别是环-β-（1,2）-葡聚糖、纤维素、卡拉胶、黄原胶和单极多糖（UPP）。本章描述了这 5 种胞外多糖的结构、合成、调控和功能。
