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Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus sonorensis  Palmisano, Nakamura,
Duncan, Istock and Cohan, 2001.
Phenotypically almost similar to
Bacillus licheniformis and distinguishable from that species mainly by pigment production on
tyrosine agar,  enzyme electrophoresis and DNA relatedness.
Gram-positive, motile rods, 1.0 x 2.0-5.0 µm. Produce subterminal, ellipsoidal
endospores (0.9-1.0 x 1.5-2.0 µm) in unswollen sporangia.
Colonies are yellowish cream, with mounds and lobes of amorphous slime, 2-4 mm
in diameter after 2 days at 30 ºC; colonies on tyrosine agar are brown. Facultatively
anaerobic. Growth temperature 20 - 55 ºC, pH 6-7. Grow in 2-3% NaCl, no growth in
5-10% NaCl. NaCl, alantoin or urate are not required for growth.
Isolated from desert soils , Sonoran Desert, Arizona, USA. No growth in the presence of lysozyme.
Undetermined.
  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. M. M. Palmisano, L.K. Nakamura, K.E. Duncan, C.A. Istock and F.M. Cohan, 2001. Bacillus sonorensis sp. nov., a close relative of
    Bacillus licheniformis, isolated from soil in the Sonoran Desert, Arizona. IJSEM 51, 1671-1679.
Positive results for catalase, nitrate reduction, hydrolysis of casein, hydrolysis of
starch, Voges-Proskauer, citrate utilization, acid production from: L-arabinose,
D-glucose, D-mannitol & D-xylose.

Negative results for degradation of tyrosine & egg yolk reaction.
Bacillus sonorensis
(c) Costin Stoica
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