Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Mycobacteriales, Family Corynebacteriaceae, Genus Corynebacterium,
Corynebacterium hansenii Renaud, Le Coustumier, Wilhem, Aubel, Riegel, Bollet and Freney 2007.
Description is based on a single isolate.
Gram-positive typical club-shaped rods. Non-spore-forming. Non-motile.
After 48 hours incubation, colonies were yellow-pigmented, very small (0.5-1.0 mm),
dry and rough. Grows at 20 & 37 ºC.
Isolated from a severe human thigh liposarcoma infection.
Susceptible amoxicillin, penicillin, imipenem, gentamicin, kanamycin, erythromycin, pristinamycin, rifampicin, vancomycin and
teicoplanin. Resistant to fosfomycin, pefloxacin and tetracycline.
As the strain was isolated together with C. pseudodiphtheriticum and S. aureus, no conclusions can be drawn about its pathogenicity.
- Renaud F.N.R., Le Coustumier A., Wilhem N., Aubel D., Riegel P., Bollet C. and Freney J., 2007. Corynebacterium hansenii sp.
nov., an alpha-glucosidase-negative bacterium related to Corynebacterium xerosis. IJSEM 57, 1113-1116.
Most biochemical reactions were determined by API Coryne and API 50CH.
Positive results for catalase, pyrazinamidase, acid production from glucose (at 37ºC; negative at 42 ºC), maltose, ribose and sucrose.
Negative results for alkaline phosphatase, esculin hydrolysis, gelatinase, lipophilism, nitrate reduction, urease, alpha-glucosidase,
beta-glucuronidase, beta-galactosidase, N-acetyl-beta-glucosaminidase, acid production from glycogen, lactose, mannitol and xylose.
Assimilation tests were positive for D-ribose, D-galactose, D-glucose, D-fructose and D-mannose and negative for all the other
substrates (D-maltose, D-turanose etc).
(c) Costin Stoica