| Bacillus freudenreichii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Bacillus, Bacillus freudenreichii
(Miquel) Chester (1898).
In Bergey’s Manual of Systematic Bacteriology, 2009, B. freudenreichii is considered 'Species Incertae Sedis'.
Very close to Brevibacillus brevis in nutritional requirements, morphology and physiology, but differing in that it produces a titratable
alkalinity in urea broth and is less tolerant of acid.
Old synonym: Urobacillus freudenreichii Miquel (1890).
(Miquel) Chester (1898).
In Bergey’s Manual of Systematic Bacteriology, 2009, B. freudenreichii is considered 'Species Incertae Sedis'.
Very close to Brevibacillus brevis in nutritional requirements, morphology and physiology, but differing in that it produces a titratable
alkalinity in urea broth and is less tolerant of acid.
Old synonym: Urobacillus freudenreichii Miquel (1890).
Gram positive, 0.6-0.7 x 1.0-5.0 μm, motile with peritrichous flagella. Spores are
ellipsoidal, central or paracentral, not swelling the sporangia.
ellipsoidal, central or paracentral, not swelling the sporangia.
Maximum temperature 40-45ºC; minimum temperature 15-20 ºC.
No growth in anaerobic agar.
Grows in 5% NaCl, but not in 10% NaCl.
No growth at 5.7 pH.
No growth in anaerobic agar.
Grows in 5% NaCl, but not in 10% NaCl.
No growth at 5.7 pH.
Isolated from soil, river water and sewage. No resistance to lysozyme.
Undetermined.
- Gordon R.E., Haynes W.C., Pang C.H. (1973) – The genus Bacillus. Agriculture Handbook No. 427, U.S.D.A., Washington D.C.
- Buchanan R.E., Gibbons N.E., Cowan S.T., Holt J.G., Liston J., Murray R.G.E., Niven C.F., Ravin A.W., Stanier R.W. ( 1974) – Bergey’
s Manual of Determinative Bacteriology, Eight Edition, The Williams & Wilkins Company, Baltimore. - 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 catalase, deamination of phenylalanine and decomposition of tyrosine.
Negative results for decomposition of casein, citrate utilization, indole production, reduction of nitrate to nitrite, starch hydrolysis,
Voges-Proskauer reaction, acid production from glucose, mannitol, arabinose and xylose.
Negative results for decomposition of casein, citrate utilization, indole production, reduction of nitrate to nitrite, starch hydrolysis,
Voges-Proskauer reaction, acid production from glucose, mannitol, arabinose and xylose.
(c) Costin Stoica
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