found: McGraw-Hill dict. of bioscience, 2003(sulfur bacterium: any of various bacteria having the ability to oxidize sulfur compounds)
found: MeSH browser, Oct. 21, 2009(Sulfur-Reducing Bacteria. A group of gram-negative, anaerobic bacteria that is able to oxidize acetate completely to carbon dioxide using elemental sulfur as the electron acceptor)
found: Wikipedia, Oct. 21, 2009(Sulfur-reducing bacteria get their energy by reducing elemental sulfur to hydrogen sulfide. They couple this reaction with the oxidation of acetate, succinate or other organic compounds. Some bacteria can use both elemental sulfur and sulfate as a source of energy. See sulfate-reducing bacteria)
found: Reef Education Network website, Oct. 21, 2009:Who's who > Bacteria > Sulfur bacteria (Sulphur bacteria; include not only the sulphide/sulphur oxidisers, but also the sulphate reducers and the anoxygenic phototrophic bacteria. These bacteria carry out many important processes involving sulphur in the marine environment. Some of them, the sulphate-reducing bacteria, are involved in the reduction of sulphate, the second most abundant anion in seawater, to sulphide, particularly in sediments. The sulphide-oxidising bacteria are the main energy providers for dense communities of invertebrates located around deep sea hydrothermal vents)