A fourth group including thermophiles is given its own phylum, the Thermodesulfobacteria. The remaining sulfate-reducers are included with other bacteria among the Nitrospirae and the gram-positive Peptococcaceae - for instance Thermodesulfovibrio and Desulfotomaculum, respectively. There is also a genus of Archaea known to be capable of sulfate reduction, Archaeoglobus.
The rotten egg odor of hydrogen sulfide is often a marker for the presence of sulfate-reducing bacteria in nature. Sulfate-reducing bacteria are responsible for the sulfurous odors of salt marshes and mud flats, as well as intestinal gas. Sulfate-reducing bacteria slowly degrade tough-to-digest materials that are rich in cellulose in anaerobic environments. Rather than breathing oxygen, they "breathe" sulfate. Sulfate occurs widely in seawater, sediment, or water rich in decaying organic material.
Ecologically these bacteria are common in anaerobic environments. However during the Permian–Triassic extinction event a severe anoxic event seems to have occurred where these forms of bacteria became the dominant force in oceanic ecosystems.
Formation of Sphalerite (ZnS) Deposits in Natural Biofilms of Sulfate-Reducing Bacteria.(bibliography included)(Brief Article)
Dec 01, 2000; Microbial reduction of sulfate by sulfate-reducing bacteria (SRB) in anoxic environments is the only major source of...
WIPO ASSIGNS PATENT TO E.T.I. FOR "COMPOSITION FOR THE PREVENTION/ REDUCTION OF MICROBE-INDUCED BIO-CORROSION CAUSED BY SULFATE-REDUCING BACTERIA (SRB) AND OTHER MICROORGANISMS" (GERMAN INVENTORS)
Sep 21, 2011; GENEVA, Sept. 21 -- Publication No. WO/2011/000339 was published on Jan. 6. Title of the invention: "COMPOSITION FOR THE...