Brevibacillus brevis
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Paenibacillaceae, Genus Brevibacillus, Brevibacillus brevis (Migula 1900)
Shida, Takagi, Kadowaki and Komagata 1996. Historical synonyms:
Bacillus brevis Migula (1900), Bacillus centrosporus  Ford (1916),
Bacillus hollandicus Stapp (1920).
2.1-5.0 / 0.6-1.0 µm Gram-positive, Gram-variable, or Gram-negative, motile, with
long, numerous, peritrichous flagella.
Spores: ellipsoidal, central, subterminal or terminal, swelling the sporangia.
Grows on routine media (nutrient agar, TSA): glossy, butyrous, cream-colored
colonies, 1–3 mm in diameter after 24–36 hours. Growth at 20 ºC (weak), at 30 ºC
may initially be slow, with more rapid growth following 24 hours incubation. Maximum
temperature 40-50 ºC; minimum temperature 10-35 ºC.
Aerobic. Grows in 2% NaCl, but not in 3 or 5% NaCl. Grows at pH 5.5-9 (variable)
Has been isolated mainly from soil and foods. Also found in airborne dust, rhizospheres and paper products. Produces  “Gramicidin”
& “Tyrocidin” antibiotics.
Accidentaly human pathogen (bacteremia).
  1. Bîlbîie V., Pozsgi N., 1985, Bacteriologie Medicală, vol.ll, Ed. Medicală, Bucureşti.
  2. Gordon R.E., Haynes W.C., Pang C.H. (1973) – The genus Bacillus . Agriculture Handbook No. 427, U.S.D.A., Washington D.C.
  3. 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.
  4. Buiuc D., Negut M. , 1999. Tratat de Microbiologie Clinica, Editura Medicala, Bucuresti.
  5. Logan N.A. 2005. Bacillus anthracis, Bacillus cereus, and other aerobic endospore-forming bacteria.In: Boriello S.P., Murray P.R.,
    Funke G. (Editors), Topley & Wilson’s Microbiology & Microbial Infections.Bacteriology, vol.2, pag.922-952.
  6. Priest F.G., 2009. Genus I.  Paenibacillus  Ash, Priest and Collins 1994. 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, 305-316.
Positive results for catalase, gelatin liquefaction & decomposition of casein, hydrolysis
of DNA, hydrolysis of Tween 60, hydrolysis of Tween 80 (weak), ONPG, oxidase, acid
production from: N-acetylglucoseamine, D-fructose, glycerol, glucose, maltose, manitol, ribose, trehalose & turanose.

Negative results for H
2S production, hydrolysis of urea, hydrolysis of starch, indole production, Voges-Proskauer reaction, acid from
arabinose, mannose, tagatose & xylose.

Resistance to lysozyme, reduction of nitrate to nitrite & citrate utilization  are variable.
(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