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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Corynebacterium bovis
Category: In the normal flora
Etymology: Genus name: club-shaped bakterium (bacterium means small rod).
Species epithet: of the ox.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Actinomycetota
Class
Actinomycetia
Order
Mycobacteriales
Family
Corynebacteriaceae 
Genus
Corynebacterium
Type Strain: ATCC 7715 = CCUG 2705 = NCTC 3224.
Macromorphology (smell): White to cream-coloured small colonies (1-2 mm in diameter). Give no hemolysis at blood agar.
Micromorphology: Nonmotile coccoid or club-shaped to pleomorphic (0.3-0.8 x 1-8 µm). Form ramified aggregates, which look like chinese letters).
Gram +/Gram -:G+
Metabolism: Facultatively anaerobic
Catalase/Oxidase:+/-
Other Enzymes: Esculinase -, hippuricase +, urease -.
Fermentation of carbohydrates:
D-glucose
+
lactose
v
maltose
+
L-rhamnose
-
sucrose
-
L-arabinose
v
cellobiose
?
D-mannitol
-
salicin
-
trehalose
v
glycerol
+
inulin
?
raffinose
-
D-sorbitol
?
starch
-
Fructose +, mannose -, xylose -.
Spec. Char.:
Disease:Belongs to th normal flora, but can sometimes cause subclinical mastitis
Hosts: Cattle
Clinical Picture:
Genome Sequence:
Acc-noStrainSize (bp)GenomeRef.
AENJ00000000 DSM 20582T 2 522 962  Nr 136

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
D38575 ATCC 7715T 1 411  

Taxonomy/phylogeny:
 
176 species and 13 subspecies are described within the genus Corynebacterium. However, not all names have been approved yet and some species have been affiliated to another genus. The genus Corynebacterium is closely related to the genera Mycobacterium, Nocardia, Rhodococcus and Crossiella.
Updated:2023-03-02

News

New names of bacterial phyla

The taxonomic category phylum was previously not regulated by the International Code of Nomenclature of Prokaryotes (ICNP), but now this has changed and it was decided to revise the names of bacterial phyla. All phyla must be written in italics (which has been done on VetBact also before) and have the ending -ota.

Published 2023-03-01. Read more...
The taxonomy of chlamydias

Species within the family Chlamydiaceae were previously divided into two genera Chlamydia and Chlamydophila. However, the differences between these two genera were not that great and many research groups have not accepted this division. Therefore, the genus Chlamydophila has been returned to the genus Chlamydia and this change has now been incorporated in VetBact

Published 2023-03-15. Read more...

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