Actinomyces cardiffensis
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Actinomycinae, Family
Actinomycetaceae, Genus Actinomyces,
Actinomyces cardiffensis Hall, Collins, Hutson, Falsen, and Duerden 2002.
Gram-positive pleomorphic, slender, straight to curved rods; beaded branching
filaments occur. Non-motile. Non-spore-forming.
Colonies are pinpoint, convex, smooth, entire-edged, opaque cream to pinkish on
Fastidious Anaerobic Agar with 5% horse blood after 48 h of incubation. Facultative
anaerobic. Non-hemolytic.
Isolated from human clinical specimens. Habitat is not known.
Isolated from human pleural fluid, brain, jaw, pericolic and ear abscesses.
  1. Hall V., Collins M.D., Hutson R., Falsen E., and Duerden B.I., 2002.  Actinomyces cardiffensis sp. nov. from Human Clinical
    Sources. Journal of Clinical Microbiology, Vol. 40, No. 9, 3427-3431.
Description is based mostly on API CORYNE (0/10101/321), API rapid 32S, API rapid
ID32A results. Non-acid-fast.

Positive results for arginine dihydrolase, alpha-glucosidase, leucine arylamidase, acid production from: glucose & sucrose.

Negative results for alkaline phosphatase, catalase, esculin hydrolysis, alpha-fucosidase, alpha-galactosidase, beta-galactosidase,  
beta-glucosidase, beta-glucuronidase, N-acetyl-beta-glucosaminidase, gelatin hydrolysis, hippurate hydrolysis, indole production,  
lipase C14, alpha-mannosidase, pyrazinamidase, pyrrolidonyl arylamidase, starch hydrolysis, urease, Voges-Proskauer test, acid
production from: amygdalin, L-arabinose, D-arabitol, cellobiose, cyclodextrin, glycogen, methyl-beta-D-glucopyranoside,
N-acetyl-beta-glucosamine, lactose, mannitol, melibiose, melezitose, pullulan, salicin, sorbitol, tagatose, trehalose & D-xylose.

Variable results for nitrate reduction, acid production from: maltose, mannose, raffinose & ribose.
(c) Costin Stoica
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