EXTRACELLULAR POLYSACCHARIDE OF ERWINIA-CHRYSANTHEMI ECH6

被引：20

作者：

YANG, BY ^{[1
]}

GRAY, JSS ^{[1
]}

MONTGOMERY, R ^{[1
]}

机构：

[1] UNIV IOWA,COLL MED,DEPT BIOCHEM,IOWA CITY,IA 52242

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 1994年 / 16卷 / 06期

关键词：

POLYSACCHARIDE; ERWINIA CHRYSANTHEMI; CHEMICAL STRUCTURE;

D O I：

10.1016/0141-8130(94)90061-2

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Many strains of Erwinia chrysanthemi, which are Gram-negative bacterial phytopathogens, produce copious amounts of extracellular polysaccharides. The extracellular polysaccharide from E. chrysanthemi pv. zeae strain SR 260, a phytopathogen of corn, is a branched-chain glucomannorhamnan of proven structure (Gray et al, Carbohydr. Res. 1993, 245, 271-287). The extracellular polysaccharide from E. chrysanthemi Ech6 is different, containing no rhamnose or mannose. It is composed of L-fucose, D-galactose, D-glucose and D-glucuronic acid in the ratio 2:2:1:1. The structure of the polysaccharide is as follows: --> 4)-alpha-L-Fucp-(1 --> 3)-beta-D-Glcp-(1 --> 4)-alpha-L-Fucp-(1 --> 3 up arrow 1 alpha-D-Galp-(1 --> 4)-alpha-D-GlcpA-(1 --> 3)-alpha\-D-Gal 6 4 \\ C \\ HOOC CH3.

引用

页码：306 / 312

页数：7