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Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Salimicrobium, Salimicrobium halophilum (Ventosa et
al. 1990) Yoon, Kang and Oh 2007.
Basonym:
Bacillus halophilus Ventosa, Garcia, Kamekura, Onishi and Ruiz-Berraquero 1990.
Description is based upon a single isolate.
Gram-positive, motile rods, 0.5-1.0 x 2.5-9.0 µm, motile, producing centrally
ellipsoidal endospores in unswollen sporangia.
Colonies are  opaque, unpigmented, entire and smooth on 15% NaCl medium.
Aerobic. Chemo-organotroph. Grow at pH 6-8 (optimum pH 7) and in 3-30% NaCl
(optimum 15% NaCl). Halophilic, NaCl is required for growth. Growth temperature
15-50 ºC (optimum 37 ºC). Allantoin or urate are not required for growth.
Isolated from rotting wood on seashore.
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. Yoon  J.-H., Kang S.-J. and Oh T.-K., 2007. Reclassification of Marinococcus albus Hao et al. 1985 as Salimicrobium album gen.
    nov., comb nov. and Bacillus halophilus Ventosa et al. 1990 as Salimicrobium halophilum comb. nov., and description of
    Salimicrobium luteum sp. nov. IJSEM 57, 2406-2411.
Positive results for hydrolysis of esculin, hydrolysis of urea, oxidase, catalase, acid
production from: D-glucose, D-mannose, glycerol, salicin, sucrose, trehalose &
D-xylose.

Negative results for arginine dihydrolase, deamination of phenylalanine, lysine decarboxylase, ornithine decarboxylase, hydrolysis of
gelatin, egg yolk reaction, indole, nitrate reduction, hydrolysis of casein, hydrolysis of starch, Voges-Proskauer test,  citrate utilization,
degradation of tyrosine, acid production from: L- or D-arabinose, D-mannitol, fructose, galactose, meso-inositol, lactose & maltose.
Salimicrobium halophilum
(c) Costin Stoica
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