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Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mycoplasmopsis bovis
Etymology: Genus name: similar to mycoplasma (fungus shaped).
Species epithet: of the ox.
Significance:  [Very important]   
Alternative Species Name(s):Mycoplasma bovis
Taxonomy:
Phylum
Tenericutes
Class
Mollicutes
Order
Mycoplasmoidales
Family
Metamycoplasmataceae 
Genus
Mycoplasmopsis
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:
 
Mycoplasmopsis is the largest genus among mollicutes of veterinary importance and about 55 species have been described so far within this genus. M. bovis is closely related to M. agalactiae. See the phylogenetic tree (Fig. 34:3) where M can mean Mycoplasma, Mesomycoplasma, Metamycoplasma, Mycoplasmoides or Mycoplasmopsis.
Comment:Based on whole genome sequencing, the taxonomy of mycoplasmas has recently undergone a comprehensive revision. The new taxonomy is about to be introduced in VetBact, but it will still be possible to search for the alternative species names. Read more about the revised taxonomy of the mollicutes under the Term list of VetBact and see also reference 164 below.
Reference(s): No. 164
Updated:2021-12-02

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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