Bacillus alcalophilus
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus alcalophilus  Vedder 1934.
Gram-positive, motile rods, 0.5-0.7/3.0-5.0 µm, presenting subterminal, ellipsoidal
endospores in unswollen sporangia.
Colonies are  white, circular, smooth and shiny, sometimes with a darker center.
Aerobe, no anaerobic growth. Alkaliphilic, optimum pH 9, range 8-10. NaCl is not
required for growth (NaCl tolerance is 2-8%). Growth temperature 10-40 ºC, optimum
55 ºC.
Isolated from a variety of materials after enrichment at pH 10.
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. Vedder A.: Bacillus alcalophilus n. sp.; benevens enkele ervaringen met sterk alcalische voedingsbodems. Antonie van
    Leeuwenhoek Journal of Microbiology and Serology, 1934, 1, 141-147.
Positive results for catalase, hydrolysis of gelatin, hydrolysis of casein, hydrolysis of
starch, hydrolysis of Tween 40, acid production from L-arabinose, D-glucose,
D-mannitol, glycerol, D-xylose,lactose, maltose, sorbitol & sucrose.

Negative results for degradation of tyrosine, deamination of phenylalanine, hydrolysis
of hippurate, egg yolk reaction, nitrate reduction, hydrolysis of cellulose, Voges-Proskauer reaction,  citrate utilization, hydrolysis of
Tween 20 & 80, acid production from sorbose.
(c) Costin Stoica
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