Actinomyces catuli
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
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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%
CO
2. 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.
  1. 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.
Non-acid-fast.

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.
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