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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mycoplasmopsis synoviae
Etymology: Genus name: fungus shaped.
Species epithet: of joint fluid.
Significance:Worldwide distribution.
  [Important]   
Alternative Species Name(s):Mycoplasma synoviae
Taxonomy:
Phylum
Tenericutes
Class
Mollicutes
Order
Mycoplasmatales
Family
Metamycoplasmataceae 
Genus
Mycoplasmopsis
Type Strain: WVU 1853 = ATCC 25204 = NCTC 10124.
Macromorphology (smell): Forms small colonies where some are very typical umbonated ("fried egg appearance") and some lack the "yolk". The macro morphology can be observed in a microscope.
Micromorphology: Very small and pleomorphic. Nonmotile.
Gram +/Gram -:G-, but is normally not gram stained because the cells will then be fragmented.
Catalase/Oxidase:
Fermentation of carbohydrates: Glucose +
Spec. Char.: Lacks a cell wall. Optimal growth temperature: 37°C.
Disease:
HostsDiseaseClinical picture
Chicken and turkeyInfectious synovitis (avian mycoplasmosis or infectious sinusitis)Subclinical or mild respiratory symptoms. Lame and stiff gait. Decreased egg production and eggshell apex abnormalities (EAA).
Genome Sequence:
Acc-noStrainSize (bp)Genome
 53 0 799 476 1c + 1c 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
X52083 WVU 1853T 1538 

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. synoviae is related to M. cynos och M. felis. See the phylogenetic tree (Fig. 214:1) 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:2022-01-20

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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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