Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Actinomycinae, Family
Actinomycetaceae, Genus Actinomyces, Actinomyces vaccimaxillae Hall, Collins, Hutson, Inganas, Falsen and Duerden 2003.
Species description is based on a single isolate.
Gram-positive cocco-bacillary to short diphtheroid rods. Non-motile. Non-acid-fast.
Colonies are less than 1 mm diameter, smooth, convex, opaque, white and
entire-edges after 48 h anaerobic incubation on Fastidious Anaerobe Agar with 5%
horse blood at 37 ºC. Non-haemolytic. Facultative anaerobic.
Isolated from a lesion in the jaw of a cow. Habitat is not known.
- Hall V, Collins MD, Hutson R, Inganas E, Falsen E and Duerden BI, 2003. Actinomyces vaccimaxillae sp. nov., from the jaw of a
cow. J Syst Evol Microbiol 53, 603-606.
Description is based on API CORYNE, API ZYM and API rapid ID32Strep results.
Positive results for acid phosphatase (weak reaction), alanine arylamidase, arginine arylamidase, esculin hydrolysis,
alpha-fucosidase, glycine arylamidase, histidine arylamidase, leucine arylamidase, proline arylamidase, serine arylamidase,
tyrosine arylamidase, acid production from: L-arabinose, glucose, ribose, trehalose and D-xylose.
Negative results for arginine dihydrolase, catalase, cysteine arylamidase, chymotrypsin, esterase C4, ester lipase C8, gelatin
hydrolysis, alpha- and beta-galactosidase, beta-glucuronidase, N-acetyl-beta-glucosaminidase, hippurate hydrolysis, indole
production, lecithinase, lipase C14, alpha- and beta-mannosidase, nitrate reduction, phosphoamidase, pyrrolidonyl arylamidase,
starch hydrolysis, trypsin, urease, valine arylamidase, Voges-Proskauer test, acid production from: D-arabitol, cyclodextrin,
methyl-beta-D-glucopyranoside, maltose, mannose, melibiose, melezitose, pullulan, D-raffinose, sorbitol and tagatose.
Variable results for alkaline phosphatase, alpha- and beta-glucosidase, pyrazinamidase, acid production from: glycogen, lactose,
mannitol and sucrose.
(c) Costin Stoica