Query: NC_014964:1353939 Thermoanaerobacter brockii subsp. finnii Ako-1 chromosome, complete Lineage: Thermoanaerobacter brockii; Thermoanaerobacter; Thermoanaerobacteraceae; Thermoanaerobacterales; Firmicutes; Bacteria General Information: Isolation: Lake sediment; Africa, Lake Kivu; Temp: Thermophile; Temp: 65C. Thermoanaerobacter brockii is a thermophilic gram positive anaerobe that has been isolated from lake sediment, oil wells and hot springs. This organism ferments hexoses and pyruvate and can reduce thiosulfate to hydrogen sulfide.
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General Information: This is the type strain (DSM 4304) of the Archaeoglobales, and was isolated from a geothermally heated sea floor at Vulcano Island, Italy. Doubling time is four hours under optimal conditions. The organism is an autotrophic or organotrophic sulfate/sulfite respirer. An additional distinguishing characteristic is blue-green fluorescence at 420 nm. This bacterium is the first sulfur-metabolizing organism to have its genome sequence determined. Growth by sulfate reduction is restricted to relatively few groups of prokaryotes; all but one of these are Eubacteria, the exception being the archaeal sulfate reducers in the Archaeoglobales. These organisms are unique in that they are only distantly related to other bacterial sulfate reducers, and because they can grow at extremely high temperatures. The known Archaeoglobales are strict anaerobes, most of which are hyperthermophilic marine sulfate reducers found in hydrothermal environments. High-temperature sulfate reduction by Archaeoglobus species contributes to deep subsurface oil-well 'souring' by iron sulfide, which causes corrosion of iron and steel in oil-and gas-processing systems.