thermodesulfobacterium commune thermodesulfobacterium commune thermodesulfobacterium commune is a species of sulfate-reducing bacteria. it is small, gram-negative, straight rod-shaped, and obligately anaerobic, and has an optimum growth temperature of 70 °c (158 °f). its type strain is ysra-1. thermodesulfobacterium commune scientific classification domain: bacteria phylum: thermodesulfobacteriota class: thermodesulfobacteria order: thermodesulfobacteriales family: thermodesulfobacteriaceae genus: thermodesulfobacterium species: t. communezeikus et al. 1983 binomial name thermodesulfobacterium commune