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Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus fumarioli  Logan, Lebbe, Hoste,
Goris, Forsyth, Heyndricks, Murray, Syme, Wynn-Williams and De Vos 2000.
Gram-positive, feebly motile rods, 0.5-0.8 x 4.0-8.0 µm. Subterminally / paracentrally,
ellipsoidal to cylindrical endospores  in unswollen sporangia are formed.
Colonies are low convex, circular and slightly irregular, opaque,  creamy-brown,
smooth,  glossy, 3-10 mm in diameter. Moderately thermoacidophilic. Best growing
and sporulating at pH 5.5 and 50 ºC on nutrient-weak media such as BFA (Logan et
al., 2000) and BFA at half nutrient-strength; growing and sporulating weakly on
trypticase soy agar containing 5 mg/l MnSO
4. Minimum pH for growth 4-4.5
Aerobic. No growth at pH 7 or above. Growth temperature 30 to 55 ºC. Allantoin, urate
or NaCl are not required for growth.
Isolated from geothermal soil and active/inactive fumaroles in continental and maritime Antarctica, and from gelatin production plants
in Belgium, France and USA.
Unknown.
  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. Logan N.A., Lebbe L., Hoste B., Goris J., Forsyth G., Heyndrickx M., Murray B.L., Syme N., Wynn-Williams and De Vos P. , 2000.
    Aerobic endospore-forming bacteria from geothermal environments in northern Victoria Land, Antarctica, and Candlemas Island,
    South Sandwich archipelago, with the proposal of Bacillus fumarioli sp. nov. IJSEM 50, 1741-1753.
Positive results for catalase, hydrolysis of gelatin, Voges-Proskauer, acid production from: D-glucose*, D-mannitol*, D-mannose*,
N-acetyl-D-glucosamine (
w), fructose, sucrose & trehalose (w).

Negative results for arginine dihydrolase, beta-galactosidase, lysine decarboxylase, ornithine decarboxylase, hydrolysis of esculin,
hydrolysis of urea,  nitrate reduction, hydrolysis of casein, citrate utilization, hydrogen sulphide production, indole producton, acid
production from: L-arabinose*, methyl beta-xyloside*, glycogen*, salicin*, starch*, D-xylose*, adonitol, amygdalin, D-arabinose, D- or
L-arabitol, arbutin, cellobiose, dulcitol, erythritol, D- or L-fucose, beta-gentibiose, gluconate, meso-inositol, inulin, 2- or
5-ketogluconate, lyxose, rhamnose, sorbitol, sorbose, xylitol & L-xylose.

Variable results for acid production from: glycerol, galactose, lactose, maltose, melezitose, melibiose, raffinose & ribose.

LEGEND
* tested at pH 6.0,  (
w) weak reaction
(c) Costin Stoica
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