Actinomyces weissii
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Actinomycinae, Family
Actinomycetaceae, Genus Actinomyces,
Actinomyces weissii Hijazin, Alber, Lammler, Kampfer, Glaeser, Busse, Kassmannhuber,
Prenger-Berninghoff, Fornges, Hassan, Abdulmawjood and Zschock 2012.
Gram-positive  irregular rods, 1.0-1.5 / 2.0-10.0 µm. Non-motile. Non-spore-forming.
Colonies are white-greyish, 1 mm in diameter after 72 h incubation on sheep blood
agar  at 35 ºC  in air plus 5% CO
2. Weak haemolysis under microaerobic conditions.  
Microaerophilic. CAMP-like reaction and reverse CAMP reaction are positive.
Isolated from dog oral cavity.
Undetermined.
  1. Hijazin M., Alber J., Lammler C., Kampfer P., Glaeser S.P., Busse H.J., Kassmannhuber J., Prenger-Berninghoff E., Fornges T.,
    Hassan A.A., Abdulmawjood A. and Zschöck M., 2012. Actinomyces weissii sp. nov., isolated from dogs. Int J Syst Evol Microbiol.
    62, 1755-1760.
Description is based on API Coryne results.

Positive results for alkaline phosphatase, catalase, DNase, beta-galactosidase, alpha- and beta-glucosidase,
N-acetyl-beta-glucosaminidase, alpha-mannosidase, acid production from: D-glucose, lactose, maltose and sucrose.

Negative results for gelatin hydrolysis, beta-glucuronidase, hyaluronidase, nitrate reduction, oxidase, pyrazinamidase, pyrrolidonyl
arylamidase, urease, Voges-Proskauer test, acid production from: mannitol, ribose and xylose.
(c) Costin Stoica
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