Phylum Actinobacteria, Class Actinobacteria, Order Micrococcales, Family Brevibacteriaceae, Genus Brevibacterium, Brevibacterium
paucivorans Wauters, Charlier, Janssens and Delmee 2001.
Gram-positive diphtheroid, short and plump rods. Nonmotile. Spores are not
Colonies are opaque, glistening, greyish, smooth or sticky, 1-2 mm in diameter after
48 h / 37 ºC aerobically incubation on sheep blood agar. Grows optimally at 37 ºC.
Can grow at 30 ºC, but not at 20 ºC.
Isolated from various human body sites (cerebrospinal fluid, a groin abscess, blood, a wound, intravascular catheter, a groin swab
and from an ear discharge).
The ecological niche is not known.
Susceptible to penicillin, ampicillin, cefotaxime, cephalothin, erythromycin, and vancomycin.
No pathological role was proved.
- Wauters G., Charlier J., Janssens M. and Delmee M., 2001. Brevibacterium paucivorans sp. nov., from human clinical specimens.
Int. J. Syst. Evol. Microbiol. 51, 1703-1707.
Description is based on API ZYM, API CORYNE (0000004 code), API 50CH with AUX
Positive results for catalase, esterase lipase (C8) (weak), gelatin hydrolysis (weak), leucine arylamidase & phosphoamidase.
Negative results for acid phosphatase, alkaline phosphatase, arginine dihydrolase, casein hydrolysis, cystine arylamidase, alpha-
chymotrypsin, esculin hydrolysis, esterase (C4), alpha-fucosidase, alpha- and beta-galactosidase, alpha- and beta-glucosidase,
beta-glucuronidase, N-acetyl-beta-glucosaminidase, indole production, lipase (C14), lysine decarboxylase, alpha-mannosidase,
nitrate reduction, ornithine decarboxylase, pyrazinamidase, pyrrolidonyl arylamidase, tyrosine hydrolysis, urease, valine arylamidase,
xanthine hydrolysis, acid production from: D-glucose, glycogen, lactose, maltose, mannitol, mannose, raffinose, ribose, sucrose &
xylose (no carbohydrates are acidified).
Cannot utilize D-arabinose, gluconate & mannitol.
(c) Costin Stoica