Open AccessAcidophilic and thermophilic Bacillus strains from geothermally heated antarctic soil
Author(s) -
Andrew Hudson J.,
Daniel Roy M.,
Morgan Hugh W.
Publication year - 1989
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1989.tb03486.x
Subject(s) - thermophile , bacillus (shape) , biology , botany , bacteria , soil water , geothermal gradient , microbiology and biotechnology , bacillales , bacillaceae , ecology , bacillus subtilis , paleontology
Bacteria with temperature optima of 51–54°C and pH optima of 3.5–4.5 were isolated from geothermal soil collected from Mount Erebus, Ross Island, Antarctica. The isolates were enriched on medium designed for the growth of Thermoplasma but the strains found were members of the genus Bacillus . Comparisons with other thermophilic acidophilic Bacillus species indicate that the strains most strongly resemble B. acidocaldarius although their temperature optima and substrate utilisation spectrum differ from one another. These strains join B. schlegelii as being isolated from geothermal soils present on Mt. Erebus.