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Strains ofPseudomonas syringaepv. porri are characterizedby a number of pathovar-specific phenotypic and genomiccharacters and constitute a highly homogeneous group.Using monoclonal antibodies, they all were classified in anovelP. syringaeserogroup O9. The O polysaccharides(OPS) isolated from the lipopolysaccharides (LPS) ofP. syringaepv. porri NCPPB 3365 and NCPPB 3364Tpossess multiple oligosaccharide O repeats, some of whichare linear and composed ofL-rhamnose (L-Rha), whereasthe major O repeats are branched with L-rhamnose in themain chain and GlcNAc in side chains (structures1and2).Both branched O repeats, which differ in the position ofsubstitution of one of the Rha residues and in the site ofattachment of GlcNAc, were found in the...
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Báo cáo khoa học: Structure of the O polysaccharides and serological classification of Pseudomonas syringae pv. porri from genomospecies 4
