Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Actinomycinae, Family
Actinomycetaceae, Genus Actinomyces, Actinomyces dentalis Hall, Collins, Lawson, Falsen, and Duerden 2005.
Species description is based on a single isolate.
Gram-positive filamentous, beaded rods. Non-motile. Non-spore-forming.
Colonies are tiny, white, breadcrumb-like on Fastidious Anaerobic Agar with 5%
horse blood after 48 h of anaerobic incubation and pit the agar. Anaerobic.
Isolated from human dental abscess. Habitat is not known.
Isolated from human dental abscess.
- Hall V., Collins M.D., Lawson P.A., Falsen E., and Duerden B.I., 2005. Actinomyces dentalis sp. nov., from a human dental
abscess. J. Syst. Evol. Microbiol. 55, 427-431.
Most results are based on API CORYNE, API rapid ID32Strep and API rapid ID32A.
Positive results for esculin hydrolysis, alpha-galactosidase, alpha- and beta-glucosidase, leucine arylamidase, acid production from:
cellobiose, fructose, D-glucose, lactose (weak reaction), maltose, mannose, melibiose, raffinose, sucrose & trehalose.
Negative results for alkaline phosphatase, arginine dihydrolase, catalase, alpha-fucosidase, gelatin hydrolysis, beta-glucuronidase,
N-acetyl-beta-glucosaminidase, hippurate hydrolysis, indole production, nitrate reduction, pyrazinamidase, starch hydrolysis, urease,
Voges-Proskauer test, acid production from: L-arabinose, D-arabitol, cyclodextrin, methyl-beta-D-glucopyranoside, glycogen,
mannitol, melezitose, pullulan, ribose, sorbitol, tagatose & D-xylose.
Variable results for beta-galactosidase.
(c) Costin Stoica