Taxonomy
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Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Corynebacterinae, Family
Corynebacteriaceae, Genus Corynebacterium,
Corynebacterium kroppenstedtii Collins, Falsen, Akervall, Sjoden and Alvarez 1998.
Gram-positive  coryneform cells, occurring as single cells or in V-shaped forms or
palisades. Non-motile. Non-spore-forming. Tuberculostearic acid is present. Mycolic
acids are not present.
Colonies on blood agar are non-pigmented, small, smooth and convex. Nonhemolytic
and CAMP-negative. Facultatively anaerobic. Grows in/at: 10% NaCl media. Can grow
at 42 ºC.
Isolated from human clinical samples. Habitat is unknown. Sensitive to cefuroxim, erythromycin, klindamycin, penicillin G and
vancomycin.
Isolated from human sputum of a patient with pulmonary disease, a brest abscess and from open-lung biopsy specimen.
  1. Collins M.D., Falsen E., Akerval E., Sjoden B. and Alvarez A., 1998. Corynebacterium kroppenstedtii sp. nov., a novel
    corynebacterium that does not contain mycolic acids. IJSB 48, 1449-1454.
  2. Funke G., 2006. Corynebacteria and rare coryneforms. In: Topley & Wilson’s Microbiology & Microbial Infections, 10th Edition,
    Edited by Borriello S.P., Murray P.R. and Funke G., Edward Arnold (Publishers) Ltd., Bacteriology, volume 2.
Fermentative metabolism. Non-acid-fast.

Variable and weak acid production from maltose.

Positive results for esculin hydrolysis, lipophilism, pyrazinamidase, acid production from: glucose & sucrose.

Negative results for acid phosphatase, alkaline phosphatase, gelatin hydrolysis, nitrate reduction, urease, acid production from:
glycogen, lactose, mannitol, ribose & xylose.
Corynebacterium kroppenstedtii
(c) Costin Stoica
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