syntrophobacter sulfatireducens syntrophobacter sulfatireducens syntrophobacter sulfatireducens is a species of bacteria notable for degrading propionate. it is notable for being syntrophic and for oxidising propionate. its cells are egg-shaped. tb8106t (=as 1.5016t=dsm 16706t) is its type strain. syntrophobacter sulfatireducens scientific classification domain: bacteria phylum: thermodesulfobacteriota class: syntrophobacteria order: syntrophobacterales family: syntrophobacteraceae genus: syntrophobacter species: s. sulfatireducenschen, liu & dong, 2005