Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Micrococcales, Family Dermabacteraceae, Genus Dermabacter, Dermabacter
hominis
Jones and Collins 1989.

Historical synonyms: CDC coryneform groups 3 and 5.
Gram-positive short rods. Non-motile. Non-spore-forming. Mycolic acids are not
present.
Colonies are small, white, cream, convex, with a distinctive, pungent odor. CAMP test
is negative. Facultative  anaerobic. Grows at 37 ºC, but not at 10 ºC. Variable growth at
45
ºC. Can grow in 5% NaCl media.
Isolated from human blood cultures, abscesses, wounds, skin lesions, eyes.
Susceptible to cephalosporins and rifampin.
Undetermined.
  1. Funke G., von Graevenitz A., Clarridge III J.E., and Bernard K.A., 1997. Clinical Microbiology of Coryneform Bacteria. Clinical
    Microbiology Rewiews Vol. 10, No. 1, p. 125-159.
  2. Jones D. and Collins M.D., 1988. Taxonomic studies on some human cutaneous coryneform bacteria: Description of
    Dermabacter hominis gen.nov., sp.nov. FEMS Microbiology Letters 51, 51-56.
Non-acid fast. Fermentative metabolism.
Some tests' description is based on API CORYNE results (codes: 64470765, 4570165, 4570364, 4570365 and 4570765).

Positive results for casein hydrolysis, catalase, DNA hydrolysis, esculin hydrolysis, gelatin hydrolysis, alpha-glucosidase,
beta-
galactosidase,
lecithinase, leucine arylamidase, lysine decarboxylase, alpha-mannosidase, ornithine decarboxylase, starch
hydrolysis, acid production from: amygdalin, cellobiose, fructose, galactose, gentiobiose, glucose, N-acetylglucosamine, lactose,
maltose, D-mannose, melezitose,  melibiose, D-raffinose, ribose, sucrose, trehalose & D-turanose.

Negative results for cellulose hydrolysis, alpha-galactosidase, beta-glucosidase, beta-glucuronidase, hippurate hydrolysis, nitrate
reduction, oxidase, tyrosine hydrolysis, urease, valine arylamidase, Voges-Proskauer test, xanthine hydrolysis, acid production from:
adonitol, arabinose, arabitol, erythritol, fucose, glycerol, glycogen, gluconate, inositol, inulin, mannitol, rhamnose, sorbitol, tagatose &
xylitol.

Variable results for H
2S production, pyrazinamidase, acid production from: arbutin, salicin & xylose.
Dermabacter hominis
(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