Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Corynebacterinae, Family
Corynebacteriaceae, Genus Corynebacterium, CDC coryneform group G CDC 1981.
Gram-positive, pleomorphic rods.
Grows anaerobically. CAMP reaction is negative.
May be recovered from a variety of sources (blood, eye, skin, semen, mitral valve, abscesses, urethra).
expressing multiple resistance to common antibiotics (often to clindamycin and erythromycin)
Infrequently reported as causative agents of disease: a fatal endocarditis, a septic arthritis and endocarditis in a patient with lupus
- 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.
- 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.
Positive results for alkaline phosphatase, lipophilism, pyrazinamidase, acid production
from fructose & glucose.
Negative results for esculin hydrolysis, urease, acid production from: mannitol & xylose.
Acid production from maltose & sucrose is variable. Nitrate reduction is positive for G-1 and negative for G-2.
(c) Costin Stoica