Brevibacillus parabrevis
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Paenibacillaceae, Genus Brevibacillus, Brevibacillus parabrevis (Takagi,
Shida, Kadowaki, Komagata and Udaka, 1993) Shida, Takagi, Kadowaki and Komagata, 1996.
Historical synonym:
Bacillus parabrevis, Takagi, Shida, Kadowaki, Komagata and Udaka, 1993.
Gram-variable, motile rods, 0.5-0.9 x 2.0-4.0 µm. Produces subterminal or terminal,
ellipsoidal spore, swelling the sporangia.
Grows on routine media (nutrient agar, TSA) producing yellowish-gray, flat, smooth
colonies.  Aerobic. No anaerobic growth. Grows at temperature 20 ºC. Variable at 15
and 50 ºC. Grows at pH 5.5-9 (variable). Variable growt in 2% NaCl medium. No
growth in 5% NaCl medium.
Isolated from clinical specimens & cheese. Susceptible to : ampicillin, chloramphenicol, neomycin (variable), erythromycin &  
tetracycline. Resistant to gramicidin.
Isolated from clinical specimens.
  1. 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.
  2. Shida O., Takagi H., Kadowaki K. and Komagata K. , 1996. Proposal for Two New Genera, Brevibacillus gen. nov. and
    Aneurinibacillus gen. nov. IJSB 46, 4, 939-946.
  3. Takagi H., Shida O., Kadowaki K., Komagata K. and Udaka S., 1993. Characterization of Bacillus brevis with Descriptions of
    Bacillus migulanus sp. nov, Bacillus choshinensis sp. nov., Bacillus parabrevis sp. nov., and Bacillus galactophilus sp. nov. IJSB
    43, 2, 221-231.
Positive results for catalase, hydrolysis of casein, hydrolysis of DNA, hydrolysis of
gelatin, hydrolysis of starch, hydrolysis of Tween 60, hydrolysis of Tween 80, nitrate
reduction, ONPG, oxidase,
acid production from: cellobiose, glucose, glycerol,
maltose, mannitol, ribose, trehalose & turanose.

Negative results for H
2S production, hydrolysis of urea, indole production, Voges-Proskauer test, acid production from: arabinose,
N-acetylglucosamine, D-fructose, galactose, lactose, mannose, starch, tagatose & xylose.

Variable results for citrate utilization and acid production from sucrose.
(c) Costin Stoica
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