Comparison of extracellular polysaccharides of Erwinia chrysanthemi spp.
Two extracellular polysaccharides from strains of Erwinia chrysanhemi Ech 1 and 9, phytopathogens of potatoes, have been isolated and purified. Both have similar compositions and other properties to that produced by strain SR 260, a phytopathogen of corn. These polysaccharides are composed of L-rhamnose, D-mannose, D-glucose, D-glucuronic acid in the ratio 3:1:1:1. Initial structural aspects of these polysaccharides are reflected in the 600 MHz 1H NMR spectra and the products of partial acid hydrolysis, which are presented for comparison.
Yang
B Y
BY
Department of Biochemistry, College of Medicine, University of Iowa, Iowa City 52242, USA.
Gray
J S
JS
Montgomery
R
R
D002240:Carbohydrate Sequence; D002845:Chromatography / Q000379:methods; D016974:Dickeya chrysanthemi / Q000737:chemistry / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D008969:Molecular Sequence Data; D015394:Molecular Structure; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism*
D011134:Polysaccharides