[The immunochemical characteristics of the lipopolysaccharides of Pseudomonas syringae (pathovars atrofaciens and phaseolicola) and P. holci (serogroup VI)].
L M Iakovleva, G M Zdorovenko, N Ia Gubanova, R I Gvozdiak
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引用次数: 0
Abstract
Lipopolysaccharides (LPS) of the representatives of strains of serogroup VI Pseudomonas syringae (P. syringae pv. atrofaciens 2399, pv. phaseolicola 120a, 7842 and P. holci 8299) possessing virulence and confinement to the host-plant are characterized by high serological activity in direct and cross reactions of the binary diffusion in agar, immunoelectrophoresis, passive hemagglutination and inhibition of passive hemagglutination. A supernatant and a sediment obtained after ultracentrifugation of LPS preparations possessed O-antigenic activity. O-specific polysaccharide (PS) is serologically less active than the LPS preparations. Problems of the intergroup and intragroup serological affinity in connection with the structure of O-specific PS. It is proved that the basic chain of O-specific polysaccharide (D-rhamnane) plays definite (but not a single) part in displaying antigenic properties of the whole LPS macromolecule.
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