V I Kapliev

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The indirect immunoperoxidase method with the use of monoclonal antibodies has been employed to determine the localization of antigens of melioidosis agents. The formed reaction products were then detected by the electron microscopic analysis. The most important in melioidosis pathogenesis antigens 6 and 8 (AG 6 and AG 8) were determined to localize on the(More)
Two types of mucoid colonies formed by P. pseudomallei cultivated on solid culture media have been studied by the method of electron cytochemistry. The intercellular material of primary mucoid colonies has been found to positively react with ruthenium red, which is indicative of its polysaccharide nature. Slime is the product secreted by P. pseudomallei and(More)
The influence of acid exopolysaccharides of some Pseudomonas species on the viability and fractional disperse composition of Salmonella marcescens-9 aerosol under static conditions has been studied. Acid exopolysaccharides have been shown to form membranes around bacteria. These membranes, due to their adsorptive and water-retaining properties, seemingly(More)
As established with the use of electron-immunochemical techniques, glycoprotein antigen 6 is the outer membrane component of P. pseudomallei cell wall, while glycoprotein antigen 8 is localized on the cell surface as a capsule-like formation. Antigen 6 plays no perceptible role in the realization of the pathogenic properties of the infective agent, but(More)
The capsular structures of Burkholderia pseudomallei, B. mallei, B. cepacia and their avirulent noncapsular mutants were studied with the use of electron ahd immunocytochemical techniques. For this purpose, antimelio-idosis monoclonal antibodies (McAb) G11 and 1 G2, epitope-aimed at capsular glycopyotein of 200 kD and outer-membrane proteins of 42 and 39(More)
Test-system using index of phagocytosis of noncapsulated mutant loaded by one of the several capsular antigenic complexes was developed and used for screening for both immunogenic and protective capsular antigens of B. mallei. Direct correlation between index of phagocytosis, level of delayed-type hypersensivity, and protective effect of capsular antigens(More)
On the basis of museum strains of the melioidosis agent Pseudomonas pseudomallei, 14 pure lines of bacteriophages were isolated belonging to morphological groups IV and V according to the classification by A. S. Tikhonenko. These phages show a broad bacteriolytic range as far as museum P. pseudomallei cultures are concerned. It was determined that some(More)
The chemical nature of thermostable P.pseudomallei hemolysin has been determined. This substance is glycolipid, synthesized by bacteria at the stationary phase of growth under the conditions of the prevalence of the source of carbon over the source of nitrogen in the nutrient medium. The hemolytic activity of thermostable hemolysin has a delayed character(More)
The phage-producing activity and sensitivity of museum cultures of a melioidosis agent to melioidosis phages have been studied. Most cultures show spontaneous phage-production, though its level differs in strains. Some of the melioidosis cultures demonstrate lack of phages. The fact that these strains have different sensitivity to chloroform lysate of(More)
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