Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus infernus Boone, Liu, Zhao, Balkwill,
Drake, Stevens and Aldrich 1995.
Gram-positive, non-motile rods, 0.7-0.8 x 4.0-8.0 µm. Endospores were not observed,
but their presence has been inferred from the survival of heat-treated cultures.
Grow anaerobically, at pH 7.3 (optimum) to 8.1. Termophilic, temperature range 45-61
ºC. Grow in nutrient broth with 2-10% NaCl added. NaCl, allantoin and urate are not
required for growth.
Isolated from a shale core taken from 2.7 km below the land surface in the Taylorsville Triassic Basin in Virginia, USA
- N.A. Logan and P. De Vos, 2009. Genus I. Bacillus Cohn 1872. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W. Ludwig, F.A.
Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes, Springer, 21-127.
- Boone D.R., Liu Y., Zhao Z.-J., Balkwill D.L., Drake G. R., Stevens T.O., and Aldrich H.C., 1995. Bacillus infernus sp. nov., an Fe(III)-
and Mn(IV)-Reducing Anaerobe from the Deep Terrestrial Subsurface. IJSB 45, 441-448.
Positive results for nitrate reduction & acid production from D-glucose.
Negative results for hydrolysis of casein, hydrolysis of starch, citrate utilization,
hydrolysis of gelatin, catalase, acid production from: L-arabinose, D-mannose,
D-xylose, cellobiose, galactose & sucrose.
(c) Costin Stoica