Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Actynomycetales, Suborder Actinomycinae, Family Actinomycetaceae, Genus
Actinomyces, Actinomyces nasicola Hall, Collins, Lawson, Falsen and Duerden, 2003.
Species description is based on a single isolate.
Gram-positive, diphtheroid rods; branching and coccoid forms occur. Non-acid-fast.
Non-spore-forming.
Colonies are pinpoint, convex, white or gray, opaque, shiny, on fastidious anaerobe
agar after 2 days. Facultative anaerobic but grew better under anaerobic conditions.
Isolated from a human antrum aspirate; habitat is unknown.
Undetermined.
- V. Hall, M.D. Collins, P.A. Lawson, E. Falsen and B.I. Duerden, 2003. Actinomyces nasicola sp. nov., isolated from a human nose.
Int J Syst Evol Microbiol. 53, 1445-1448.
Description is based on API ZYM, API Rapid ID32Strep, and API Rapid ID32A results.
Positive results for beta-galactosidase, alpha- and beta-glucosidase, N-acetyl-beta-glucosaminidase, leucine arylamidase, valine
arylamidase, acid production from cellobiose and fructose.
Negative results for acid and alkaline phosphatase, catalase, cystine arylamidase, alpha-chemotrypsin, esculin hydrolysis, esterase
C4, ester lipase C8, alpha-fucosidase, alpha-galactosidase, beta-glucuronidase, gelatin hydrolysis, indole production, hippurate
hydrolysis, alpha-mannosidase, lipase C14, lecithinase, nitrate reduction, starch hydrolysis, trypsin, urease, Voges-Proskauer, acid
production from amygdalin, arabinose, D-arabitol, D-glucose, glycogen, lactose, maltose, mannitol, mannose, melibiose, melezitose,
raffinose, ribose, salicin, sorbitol, sucrose, tagatose, trehalose and xylose.
(c) Costin Stoica