| Bacillus flexus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Bacillaceae, Genus Bacillus, Bacillus flexus (ex Batchelor 1919) Priest,
Goodfellow and Todd 1989.
Goodfellow and Todd 1989.
Gram-variable, rods, 0.9 µm mean cell width, presenting centrally / paracentrally,
ellipsoidal endospores in unswollen sporangia.
ellipsoidal endospores in unswollen sporangia.
Colonies are opaque and smooth. Aerobic. No anaerobic growth. Grow at pH 4.5 -
9.5 and in 2 - 10 % NaCl. Growth temperature 17 to 37 ºC (optimum 30 ºC). Allantoin,
urate or NaCl are not required for growth.
9.5 and in 2 - 10 % NaCl. Growth temperature 17 to 37 ºC (optimum 30 ºC). Allantoin,
urate or NaCl are not required for growth.
Isolated from feces (poultry) and 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.
Positive results for beta-galactosidase, hydrolysis of urea, hydrolysis of gelatin,
oxidase, hydrolysis of casein, hydrolysis of starch, citrate utilization, hydrolysis of
Tween 20, acid production from: D-glucose, D-mannitol, glycerol, fructose, galactose,
lactose, maltose, raffinose, sucrose & trehalose.
Negative results for deamination of phenylalanine, hydrolysis of esculin, hydrolysis of hippurate, egg yolk reaction, indole production,
nitrate reduction, Voges-Proskauer reaction, degradation of tyrosine, acid production from: L-arabinose, adonitol, D- cellobiose,
dulcitol, erythritol, D-mannose, rhamnose, sorbitol, D-xylose & L-xylose.
Variable results for hydrolysis of Tween 80, meso-inositol & salicin acidification.
oxidase, hydrolysis of casein, hydrolysis of starch, citrate utilization, hydrolysis of
Tween 20, acid production from: D-glucose, D-mannitol, glycerol, fructose, galactose,
lactose, maltose, raffinose, sucrose & trehalose.
Negative results for deamination of phenylalanine, hydrolysis of esculin, hydrolysis of hippurate, egg yolk reaction, indole production,
nitrate reduction, Voges-Proskauer reaction, degradation of tyrosine, acid production from: L-arabinose, adonitol, D- cellobiose,
dulcitol, erythritol, D-mannose, rhamnose, sorbitol, D-xylose & L-xylose.
Variable results for hydrolysis of Tween 80, meso-inositol & salicin acidification.
(c) Costin Stoica
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