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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Nocardia asteroides
Etymology: Genus name: named after the French veterinarian Edmond Nocard.
Species epithet: star like.
Significance:  [Important]   
Taxonomy:
Phylum
Actinobacteria
Class
Actinobacteria
Order
Corynebacteriales
Family
Nocardiaceae 
Genus
Nocardia
Type Strain: ATCC 19247 = CCUG 10073 = NCTC 11293.
Macromorphology (smell): Small and often irregular colonies (0.3-3 mm in diameter), which are yellowish due to pigment production.
Micromorphology: Rod shaped but forms also branched filaments.
Gram +/Gram -:
Metabolism: Aerobic
Catalase/Oxidase:+/?
Other Enzymes: Esculinase -
Fermentation of carbohydrates: N. asteroides does not ferment carbohydrates since it is an obligate aerobic bacterium.
Spec. Char.:
Reservoir: N. asteroides is naturally occuring in dust, soil, water, and on plants.
Disease:Canine nocardiosis etc.
Hosts: Dog, cattle, pig, sheep
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
X84850 ATCC 19247T 1 412  

Taxonomy/phylogeny:
 
About 100 species have been described within genus Nocardia, which is closely related to the following genera: Rhodococcus och Crossiella.
Comment:N. asteroides is an opportunistic pathogen for animals (inkluding humans).
Updated:2017-02-02

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