''Thermoanaerobacter brockii'', formerly ''Thermoanaerobium brockii'', is a

thermophilic A thermophile is an organism—a type of extremophile—that thrives at relatively high temperatures, between . Many thermophiles are archaea, though they can be bacteria or fungi. Thermophilic eubacteria are suggested to have been among the earl ...

anaerobic Anaerobic means "living, active, occurring, or existing in the absence of free oxygen", as opposed to aerobic which means "living, active, or occurring only in the presence of oxygen." Anaerobic may also refer to: * Anaerobic adhesive, a bonding a ...

, spore-forming bacterium. The bacterium was first isolated from

Yellowstone National Park Yellowstone National Park is an American national park located in the western United States, largely in the northwest corner of Wyoming and extending into Montana and Idaho. It was established by the 42nd U.S. Congress with the Yellowston ...

. The growth range for the organism is 35 to 80°C and pH 5.5-9.5, with optimal growth conditions at 65-70°C and pH 7.5. ''T. brockii'' stains

Gram-positive In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. Gram-positive bacte ...

.J. G. Zeikus, P. W. Hegge and Mary Ann Anderson. ''Thermoanaerobium brockii'' gen. nov. and sp. nov., a new chemoorganotrophic, caldoactive, anaerobic bacterium. ''Archives of Microbiology''. Volume 122, Number 1 (1979), 41-48, DOI: 10.1007/BF00408044. While originally thought to be non-sporeforming bacteria, it was later discovered that the organism produced spores that can survive heating at 115 °C for 80 min. The species was originally classified as ''Thermoanaerobium brockii'', but further analysis put the bacteriait into the genus ''

Thermoanaerobacter ''Thermoanaerobacter'' is a genus in the phylum Bacillota (Bacteria). Members of this genus are thermophilic and anaerobic, several of them were previously described as ''Clostridium'' species and members of the now obsolete genera ''Acetogenium ...

''.Yong-Eok Lee, Mahendra K. Jain, Chanyong Lee, and J. Gregory Zeikus. Taxonomic Distinction of Saccharolytic Thermophilic Anaerobes: Description of Thermoanaerobacterium xylanolyticum gen. nov., sp. nov., and Thermoanaerobacterium saccharolyticum gen. nov., sp. nov.; Reclassification of Thermoanaerobium brockii, Clostridium thermosulfurogenes, and Clostridium thermohydrosulfuricum E100-69 as Thermoanaerobacter brockii comb. nov., Thermoanaerobacterium thermosulfurigenes comb. nov., and Thermoanaerobacter thermohydrosulfuricus comb. nov., Respectively; and Transfer of Clostridium thermohydrosulfuricum 39E to Thermoanaerobacter ethanolicus. ''International Journal of Systematic Bacteriology.'' January 1993 vol. 43 no. 1 41-51. doi: 10.1099/00207713-43-1-41. The species is named "in honor of T.D. Brock, a pioneer in the golden era of thermophily."

References

External links

Type strain of ''Thermoanaerobacter brockii'' at Bac''Dive'' - the Bacterial Diversity Metadatabase
{{Taxonbar, from=Q3990296 Thermoanaerobacterales Thermophiles Anaerobes Bacteria described in 1983