Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Bacteria => Firmicutes => Bacilli => Bacillales => Bacillaceae => Bacillus => Bacillus gibsonii Nielsen, Fritze and Priest 1995.
Stout rods, 0.6-1.0 x 2.0-3.0 µm, forming subterminally, ellipsoidal (0.6-1.0 x 0.8-1.6
µm) endospores (in ageing cultures are paracentrally and occasionally laterally) in
unswollen sporangia.
µm) endospores (in ageing cultures are paracentrally and occasionally laterally) in
unswollen sporangia.
Colonies are yellow, smooth, shiny and circular. Aerobic. Alkalitolerant. Growth
occurs at pH 7 & 8 (optimum) and at 20 - 30 ºC (variable growth at 10 & 37 ºC).
Allantoin, urate or NaCl are not required for growth. Growth occurs in nutrient broth
with 2 - 9% NaCl added. Variable growth in 10% & 12% NaCl.
occurs at pH 7 & 8 (optimum) and at 20 - 30 ºC (variable growth at 10 & 37 ºC).
Allantoin, urate or NaCl are not required for growth. Growth occurs in nutrient broth
with 2 - 9% NaCl added. Variable growth in 10% & 12% NaCl.
Isolated from soil.
Unknown.
- 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. - Nielsen P., Fritze D. and Priest F. G., 1995. Phenetic diversity of alkaliphilic Bacillus strains: proposal for nine new species.
Microbiology 141, 1745-1761.
Positive results for lactose utilization, hydrolysis of gelatin & casein.
Negative results for glycogen utilization, N-acetylglucosamine utilization, deamination
of phenylalanine, hydrolysis of hippurate, hydrolysis of starch, hydrolysis of pullulan,
hydrolysis of Tween 20 & 80.
Variable results for nitrate reduction, hydrolysis of Tween 40 & 60.
Negative results for glycogen utilization, N-acetylglucosamine utilization, deamination
of phenylalanine, hydrolysis of hippurate, hydrolysis of starch, hydrolysis of pullulan,
hydrolysis of Tween 20 & 80.
Variable results for nitrate reduction, hydrolysis of Tween 40 & 60.
(c) Costin Stoica
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