[Comparative study of the membrane protein composition of bacteria in the genus Bdellovibrio]

The protein composition of membranes was studied in 17 Bdellovibrio strains by electrophoresis in polyacrylamide gel in the presence of sodium dodecyl sulfate. No similarity in the protein composition of membranes was found in the strains grown on cells of one and the same host. A dendrogram constructed basing on the similarity coefficients between the strains allowed to subdivide them into 3 groups according to the protein composition of their membranes. This correlated with the other phenotypic features and genotaxonomic data.