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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mycoplasmopsis pulmonis
Category: Motile
Etymology: Genus name: similar to mycoplasma (fungus shaped).
Species epithet: of the lung.
Significance:  [Of minor importance]   
Alternative Species Name(s):Mycoplasma pulmonis
Taxonomy:
Phylum
Tenericutes
Class
Mollicutes
Order
Mycoplasmoidales
Family
Metamycoplasmataceae 
Genus
Mycoplasmopsis
Type Strain: PG34 = ATCC 19612 = NCTC 10139.
Macromorphology (smell): Forms small and very typical umbonated colonies ("fried egg appearance"), which can be observed in a microscope.
Micromorphology: Very small and pleomorphic or flask-shaped. This bacterium is motile and can glide on surfaces.
Gram +/Gram -:G-, but is normally not gram stained because the cells will then be fragmented.
Metabolism: Facultatively anaerobic. Energy source: glucose (pH is decreased).
Catalase/Oxidase:?/-
Spec. Char.: Lacks a cell wall.
Disease:
HostsDiseaseClinical picture
Mouse and ratsMurine respiratory mycoplasmosis (MRM)Lesions such as suppurative (pus forming) rhinitis, otitis media, tracheitis, and bronchopneumonia
RatsGenital infectionPurulent endometritis, salpingitis, and perioophoritis
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_002771 UAB CTIP 0 963 879 1c + 0 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AF125582 PG34T 1 468 

Taxonomy/phylogeny:
 
Mycoplasmopsis is the largest genus among mollicutes of veterinary importance and about 55 species have been described so far within this genus. See the phylogenetic tree (Fig. 33:1) 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 has now been 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:2022-01-13

News

New names of taxa within the classification category phylum

During October 2021, an article was published by A. Oren och G.M. Garrity, in which new names are proposed for a number of taxa within the classification category phylum. This has resulted in many discussions in social media about whether it was really necessary to make these changes, which have created confusion among microbiologists and other professionals who come into contact with bacteriology.

Published 2022-09-28. Read more...

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