Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Actinomycinae, Family
Actinomycetaceae, Genus Actinomyces, Actinomyces catuli Hoyles, Falsen, Pascual, Sjoden, Foster, Henderson and Collins 2001.
Gram-positive straight to slightly curved rods. Non-motile.
Colonies are tiny, irregular, convex, white and adherent to medium. It was cultured on
Columbia agar (Difco) supplemented with 5% horse blood at 37 ºC in air plus 5%
CO2. Facultative anaerobic.
Isolated from dog clinical specimens. Habitat is not known.
Isolated from a dog with pneumonia and exudative pleurisy, from mediastinal tissue and blood clot with Bacteroides fragilis,
Fusobacterium nucleatum, Peptostreptococcus anaerobius and P. productus.
- Hoyles L., Falsen E., Pascual C., Sjödén B., Foster G, Henderson D. and Collins M.D., 2001. Actinomyces catuli sp. nov., from
dogs. Int. J. Syst. Bacteriol. Vol. 51, 679-682.
Description is based mostly on API CORYNE, API ZYM and API rapid ID32Strep results.
Positive results for acid phosphatase, cystine arylamidase, esculin hydrolysis, ester lipase C8, beta-galactosidase, alpha- and
beta-glucosidase, beta-glucuronidase, leucine arylamidase, nitrate reduction, pyrazinamidase, pyrrolidonyl arylamidase, acid
production from: D-glucose, lactose, maltose, raffinose, ribose, sucrose (saccharose), trehalose & D-xylose.
Negative results for alkaline phosphatase, chymotrypsin, alpha-fucosidase, gelatin hydrolysis, hippurate hydrolysis, lipase C14,
alpha-mannosidase, trypsin, urease, valine arylamidase, Voges-Proskauer test, acid production from: D-arabitol, cyclodextrin,
glycogen, mannitol, melezitose, pullulan & sorbitol.
Variable results for arginine dihydrolase, catalase, esterase C4, alpha-galactosidase, N-acetyl-beta-glucosaminidase, acid
production from: L-arabinose, melibiose & methyl-beta-D-glucopyranoside.
(c) Costin Stoica