desulfobacter vibrioformis desulfobacter vibrioformis desulfobacter vibrioformis is a sulfate-reducing bacteria. it is mesophilic, gram-negative, vibrio-shaped, marine and acetate-oxidizing. desulfobacter vibrioformis scientific classification domain: bacteria phylum: thermodesulfobacteriota class: desulfobacteria order: desulfobacterales family: desulfobacteraceae genus: desulfobacter species: d. vibrioformis binomial name desulfobacter vibrioformislien and beeder 1997