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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mycoplasmopsis felis
Category: In the normal flora
Etymology: Genus name: similar to mycoplasma (fungus shaped).
Species epithet: of cat.
Significance:  [Important]   
Alternative Species Name(s):Mycoplasma felis
Taxonomy:
Phylum
Tenericutes
Class
Mollicutes
Order
Mycoplasmoidales
Family
Metamycoplasmataceae 
Genus
Mycoplasmopsis
Type Strain: CO = ATCC 23391 = NCTC 10160.
Macromorphology (smell):
 
Forms small and typical umbonated colonies ("fried egg appearance"), which can be observed in a microscope.
Micromorphology: Small coccoid to filamentous.
Gram +/Gram -:G-, but is normally not gram stained because the cells will then be fragmented.
Metabolism: Energy source: glucose (pH is decreased).
Catalase/Oxidase:?/-
Spec. Char.: Lacks a cell wall.
Disease:
HostsDiseaseClinical picture
CatConjunctivitisInflammation of conjunctiva
HorseShipping fever (pleuritis)M. felis has sometimes been associated with respiratory diseases in horses.
Genome Sequence:
Acc-noStrainSize (bp)GenomeRef.
AP022325 Myco-2 0 841 695  Nr 172

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
U16758 ATCC 25749 1459  

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. felis is closely related to M. cynos and M. synoviae. See the phylogenetic tree (Fig. 178:2) 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, 172
Updated:2022-01-13

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New families introduced within the order Enterobacterales
Phylogenetic tree for the order <i>Enterobacteriales</i>.

The order Enterobacterales (formerly called Enterobacteriales) previously consisted of bacteria with different properties and phylogenetically, these bacteria were far apart. In order for the taxonomy to be more in line with phylogeny, some of these bacteria have, therefore, been sorted into 6 new families.

Published 2022-04-13. Read more...

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