Alicyclobacillus acidoterrestris

Alicyclobacillus acidoterrestris is a species of Gram positive, strictly aerobic, bacterium. The bacteria are acidophilic and produce endospores. It was first isolated from soil. The species was originally classified as Bacillus acidoterrestris in 1987, but further 16S rRNA studies found that the species belonged in the newly created genus Alicyclobacillus. The species name is derived from the Latin acidum (acid) and terrestris (from the earth), referring to its acidophilic nature and that it was isolated from soil.[1][2]

Alicyclobacillus
Scientific classification
Domain:	Bacteria
Division:	Firmicutes
Class:	Bacilli
Order:	Bacillales
Family:	Alicyclobacillaceae
Genus:	Alicyclobacillus
Species:	A. acidoterrestris
Binomial name
Alicyclobacillus acidoterrestris Wisotzkey et al. 1992

A. acidoterrestris was among the first three species reclassified from the genus Bacillus to the newly created Alicyclobacillus in 1992, along with A. acidocaldarius and A. cycloheptanicus.[2]

The optimum growth temperature for A. acidoterrestris is 42-53 °C, and can grow in the 35-55 °C range, and in pH 2.2-5.8.[2]

References

1. Deinhard, G; Blanz, P; Poralla, K; Altan, E (1987). "Bacillus acidoterrestris sp. nov., a New Thermotolerant Acidophile Isolated from Different Soils". Systematic and Applied Microbiology. 10: 47–53. doi:10.1016/S0723-2020(87)80009-7.
2. Wisotzkey, J. D; Jurtshuk, P; Fox, G. E; Deinhard, G; Poralla, K (1992). "Comparative Sequence Analyses on the 16S rRNA (rDNA) of Bacillus acidocaldarius, Bacillus acidoterrestris, and Bacillus cycloheptanicus and Proposal for Creation of a New Genus, Alicyclobacillus gen. Nov". International Journal of Systematic Bacteriology. 42 (2): 263–269. doi:10.1099/00207713-42-2-263. PMID 1374624.