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Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mycoplasma bovis
Etymology: Genus name: fungus shaped.
Species epithet: of the ox.
Significance:  [Very important]   
Taxonomy:
Phylum
Tenericutes
Class
Mollicutes
Order
Mycoplasmatales
Family
Mycoplasmataceae 
Genus
Mycoplasma
Type Strain: Donetta = ATCC 25523 = NCTC 10131.
Macromorphology (smell):
   
Forms small and very typical umbonated colonies ("fried egg appearance"), which can be observed in a microscope.
Micromorphology: Very small and pleomorphic
Gram +/Gram -:G-, but is normally not gram stained because the cells will then be fragmented.
Metabolism: Facultatively anaerobic. Does not ferment glucose and does not hydrolyze arginine. M. bovis utilizes organic acids och alcohols as energy sources.
Catalase/Oxidase:
Other Enzymes: Urease -
Spec. Char.: Lacks a cell wall.
Disease:Pneumonia (primarily in calves), mastitis, arthritis
Hosts: Cattle
Clinical Picture: Mastitis caused by M. bovis can be subclinical or very severe. It is often associated with loss of milk production and purulent or serous udder exudate.
Genome Sequence:
Acc-noStrainSize (bp)Genome
CP002188 DonettaT 1 003 404 1c + 1c 
Three strains have been sequenced and one plasmid has been found in all three strains

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
U02968 DonettaT 1 519 

Taxonomy/phylogeny:
 
About 125 species have been described within the genus Mycoplasma. M. bovis belongs to the hominis group and is very closely related to M. agalactiae.
Comment:Note that the mycoplasmas have recently been transferred to a new phylum, Tenericutes.
Updated:2021-10-07

News

"Dear child has many names" (call it what you will...)

For a long time, Rhodococcus hoagii was refer­red to Rhodo­coccus equi on VetBact, because we experienced some resistance to the name that is now considered to be the correct one, i.e. Rhodococcus hoagii. Now you can find the bacterium in question under the correct name in VetBact, but you can also find the bacterium when searching for the old name. 

Published 2021-10-10. Read more...

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