Sulfate- and Sulfur-Reducing Bacteria Representative Sulfate-reducing and sulfur-reducing bacteria Most are Delta Purple bacteria Desulfosarcina variabilis Desulfovibrio desulfuricans h Desulfobacterpostgatei ) 入S裂 Desulfonema limicola Desulfobulbus propionicus Sulfur-reducing bacteria 0 Desulfuromonas acetoxidansSulfate- and Sulfur-Reducing Bacteria Representative Sulfate-reducing and sulfur-reducing bacteria Most are Delta Purple Bacteria Desulfovibrio desulfuricans Desulfonema limicola Desulfobacter postgatei Desulfobulbus propionicus Desulfosarcina variabilis Desulfuromonas acetoxidans Sulfur-reducing bacteria