Clusterization of halophilic and halotolerant eubacteria using whole-cell protein electrophoresis data

Total cell proteins of the nineteen halophilic and halotolerant eubacteria isolated from marine sediments and highly mineralized formation waters of o il fields were investigated by SDS gel electrophoresis. The microorganisms studied, phenotypically identified as belonging to the genera Dietzia, Rhod ococcus, Staphylococcus, Cytophaga, Brevibacterium, and Archangium, were fo und to form clearly distinguishable clusters (20-33% similarity at the gene ric level) on the dendrogram derived from electrophoretic protein patterns. Protein similarity data confirmed the heterogeneity of Rhodococcus maris a nd its relatedness to the genus Dietza.