Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus pseudofirmus  Nielsen, Fritze and
Priest 1995. It is phenotypically similar to
Bacillus firmus, but alkalophilic and phylogenetically distinct.
Rod shaped, 0.6-0.8 x 3.0-6.0 µm, producing central / subterminal, ellipsoidal
endospores (0.5-0.7 x 0.5-1.2 µm) in unswollen sporangia.
Colonies are white with irregular margins. Grow aerobically (anaerobic growth was
not tested). Alkaliphilic. Growth temperature 10-45 ºC (optimum 30 ºC); pH 7-9
(optimum pH 9). Can grow in 5-16% NaCl. NaCl, alantoin or urate are not required for
growth.
Isolated from soil and animal manure.
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. P. Nielsen, D. Fritze and F.G. Priest, 1995. Phenetic diversity of alkaliphilic Bacillus strains: proposal for nine new species.
    Microbiology 141, 1745-1761.
Positive results for deamination of phenylalanine, hydrolysis of gelatin, casein, starch,
Tween 40 & Tween 60.

Negative results for nitrate reduction, hydrolysis of hippurate, Tween 20 & Tween 80.
Bacillus pseudofirmus
(c) Costin Stoica
Antibiogram
Encyclopedia
Culture media
Biochemical tests
Stainings
Images
Movies
Articles
Identification
Software
R E G N U M
PROKARYOTAE
Previous page
Back