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Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Actinomyces viscosus
Etymology: Genus name: Greek actino ray, mykes fungus (referring to the radiating appearance of microcolonies).
Species epithet: sticky.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Actinobacteria
Class
Actinobacteria
Order
Actinomycetales
Family
Actinomycetaceae 
Genus
Actinomyces
Type Strain: ATCC 15987 = CCUG 14476 = NCTC 10951
Macromorphology (smell): Medium sized, round, white and viscous kolonies (O.5-5 mm in diameter).
Micromorphology: Small bent and nonmotile rods (diameter: 0.2-1.0 µm), sometimes branching filaments up to 50 µm
Gram +/Gram -:G+
Metabolism: Facultatively anaerobic, but needs 10% CO2 to grow anaerobically.
Catalase/Oxidase:+/V
Other Enzymes: DNase -, tryptophanase -, urease V
Biochemical Tests: Methyl red +, Voges-Proskauer -
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+++-+
L-arabinosecellobioseD-mannitolsalicintrehalose
---(-)v
glycerolinulinraffinoseD-sorbitolstarch
-(-)(+)-v
Other carbohydrates: Xylose -
Spec. Char.:
Disease:Canine actinomycosis
Hosts: Dog
Clinical Picture:
Genome Sequence:
Acc-noStrainSize (bp)Genome
Ongoing C505 3 133 750  

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AJ234053 CCUG 34288 1371  

Taxonomy/phylogeny:
 
The genus Actinomyces is composed of about 40 species, which are related to the genera Actinobaculum and Trueperella.
Comment:The species definition has been changed and it is only strains belonging to the former serovar I that should be regarded as A. viscosus.
Updated:2017-05-10

News

The revised taxonomy of the mollicutes

The revised taxonomy of mollicutes (mycoplasmas) has now been introduced on VetBact, which means that many of the species have been given new genus names or moved to another higher taxon. 

Published 2021-11-25. Read more...

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