Fig. 4From: Characterization of sulfur oxidizing bacteria related to biogenic sulfuric acid corrosion in sludge digestersMaximum likelihood based phylogenetic tree of almost complete 16S rRNA gene sequences from pure SOB cultures obtained from digesters (Dg) A-F. Their respective type strains are indicated with a superscripted T. Tistrella mobilis served as out-group. Maximum likelihood calculations were based on the Tamura-Nei model [37] and the tree with the highest log likelihood (-4678.6398) is shown. A discrete Gamma distribution was used to model evolutionary rate differences among sites (5 categories (+G, parameter = 0.3865))Back to article page