desulfotignum desulfotignum desulfotignum is a gram-negative and strictly anaerobic bacteria with a single polar flagellum genus from the family of desulfobacteraceae. desulfotignum scientific classification domain: bacteria phylum: thermodesulfobacteriota class: desulfobacteria order: desulfobacterales family: desulfobacteraceae genus: desulfotignumkuever et al. 2001 type species desulfotignum balticum species d. balticum d. phosphitoxidans d. toluenicum