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.
Department of Biochemistry, College of Medicine, University of Iowa, Iowa City 52242, USA.
B Y
BY
Yang
J S
JS
Gray
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R
Montgomery
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