Thermoanaerobacter kivui

Thermoanaerobacter ethanolicus
Scientific classification
Domain:	Bacteria
Phylum:	"Firmicutes"
Class:	Clostridia
Order:	Thermoanaerobacterales
Family:	Thermoanaerobacteraceae
Genus:	Thermoanaerobacter
Species:	T. kivui

Thermoanaerobacter kivui (formerly Acetogenium kivui) is an thermophilic, anaerobic, non-sporeforming species of bacteria.^[1]

T. kivui was originally isolated from Lake Kivu in Africa. The growth range for the organism is 50 to 72 °C at pH 5.3-7.3, with optimal growth conditions at 66 °C and pH 6.4. Although the organism stains Gram-negative, it shows a Gram-positive cell structure. The original genus Acetogenium was named because organism principally produces acetic acid from substrates.^[2] T. kivui was originally named Acetogenium kivui, which was the only species within the new genus. However, further 16S ribosomal RNA studies put the bacteria into genus Thermoanaerobacter and the genus was no longer necessary.^[3]

References

1. John A. Leigh and Ralph S. Wolfe. Acetogenium kivui gen. nov., sp. nov., a Thermophilic Acetogenic Bacterium. International Journal of Systematic Bacteriology. October 1983 vol. 33 no. 4 886 doi: 10.1099/00207713-33-4-886.
2. J. A. Leigh, F. Mayer and R. S. Wolfe. Acetogenium kivui, a new thermophilic hydrogen-oxidizing acetogenic bacterium. Archives of Microbiology. Volume 129, Number 4 (1981), 275-280, DOI: 10.1007/BF00414697.
3. M.D. Collins, P.A. Lawson, A. Willems, J.J. Cordoba, J. Fernadez-Garayzabal, P. Garcia, J. Cai, H. Hippie, J.A.E. Farrow. The Phylogeny of the Genus Clostridium: Proposal of Five New Genera and Eleven New Species Combinations. International Journal of Systematic Bacteriology. October 1994 vol. 44 no. 4 812-826 doi: 10.1099/00207713-44-4-812.