STRUCTURE OF THE EXTRACELLULAR POLYSACCHARIDE SECRETED BY RHIZOBIUM-LEGUMINOSARUM VAR PHASEOLI CIAT-899

被引：36

作者：

GILSERRANO, A ^{[1
]}

DELJUNCO, AS ^{[1
]}

TEJEROMATEO, P ^{[1
]}

MEGIAS, M ^{[1
]}

CAVIEDES, MA ^{[1
]}

机构：

[1] UNIV SEVILLA,FAC FARM,DEPT MICROBIOL & PARASITOL,E-41071 SEVILLE,SPAIN

来源：

CARBOHYDRATE RESEARCH | 1990年 / 204卷

关键词：

D O I：

10.1016/0008-6215(90)84025-P

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：

The structure of the extracellular polysaccharide secreted by Rhizobium leguminosarum var. phaseoli CIAT 899 has been studied by methylation analysis, 1H-n.m.r. spectroscopy, and partial acid hydrolysis. The repeating unit is an octasaccharide made up of d-glucose, d-galactose, pyruvic acid, and acetic acid in the molar ratios 6:2:1.5:1.5. Half of the terminal Gal groups are 4,6-substituted by pyruvic acid acetal groups and the other half by O-acetyl groups at position 3. Also, one of the 3-linked glucosyl residues carries a pyruvic acid 4,6-acetal group and one of the 4-linked glucosyl residues is acetylated at position 6. © 1990.

引用

页码：103 / 107

页数：5

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