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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
Not determined.
  1. 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.
  2. 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
Bacillus infernus
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