Query: NC_012438:1514376 Sulfurihydrogenibium azorense Az-Fu1 chromosome, complete genome
Lineage: Sulfurihydrogenibium azorense; Sulfurihydrogenibium; Hydrogenothermaceae; Aquificales; Aquificae; Bacteria
General Information: This strain was isolated from a terrestrial hot spring in the Azores, where it was living at temperatures between 65 degrees C and 70 degrees C. Hydrogen-oxidizing thermophile. Sulfurihydrogenibium azorense is a thermophilic bacterium that is able to use hydrogen and sulfur compounds as electron donors. This organism is also able to use ferric iron and arsenate as electron acceptors. This is the first pure culture terrestrial member of the Aquificales group, isolated by dilution-to-extinction methods.
Subject: NC_011883:2031222 Desulfovibrio desulfuricans subsp. desulfuricans str. ATCC 27774,
Lineage: Desulfovibrio desulfuricans; Desulfovibrio; Desulfovibrionaceae; Desulfovibrionales; Proteobacteria; Bacteria
General Information: Desulfovibrio desulfuricans subsp. desulfuricans str. ATCC 27774 was isolated from the rumen of a sheep. D. desulfuricans reduces sulfate to sulfide found in soil, freshwater, saltwater and the intestinal tract of animals. This organism grows anaerobically and utilizes a wide variety of electron acceptors, including sulfate, sulfur, nitrate, and nitrite, as well as others. The nitrate reduction pathway is not expressed while sulfate is available. Alternatively, the sulfate reduction pathway is constitutively expressed when the cells are growing with nitrate reduction. A number of toxic metals are reduced, including uranium (VI), chromium (VI) and iron (III), making this organism of interest as bioremediator. Metal corrosion, a problem that is partly the result of the collective activity of this bacterium, results in billions of dollars in losses each year to the petroleum industry. This organism is responsible for the production of poisonous hydrogen sulfide gas in marine sediments and in terrestrial environments such as drilling sites for petroleum products.