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Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mesomycoplasma flocculare
Etymology: Genus name: between other mycoplasmas (fungus shaped).
Species epithet: tuft of wool.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Tenericutes
Class
Mollicutes
Order
Mycoplasmoidales
Family
Metamycoplasmataceae 
Genus
Mesomycoplasma
Type Strain: Ms42 = ATCC 27399 = NCTC 10143.
Macromorphology (smell): Forms small atypical colonies, which lack a defined center. The colonies should be observed in a microscope.
Micromorphology: Coccoid cells.
Gram +/Gram -:G-, but is normally not gram stained because the cells will then be fragmented.
Metabolism: Facultatively anaerobic.
Catalase/Oxidase:
Spec. Char.:
Disease:M. flocculare is an opportunistic pathogen, which may cause pneumonia in combination with other patogens (usually M. hyopneumoniae).
Hosts: Pig.
Clinical Picture:
Genome Sequence:
Acc-noStrainSize (bp)Genome
CP007585 Ms42T 0 778 866 1c + 0 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
L22210 Ms42T 1541 (354..1894) 

Taxonomy/phylogeny:
 
About 15 species have been described within the genus Mesomycoplasma. Mesomycoplasma flocculare is closely related to M. ovipneumoniae, M. hyopneumoniae as well as M. dispar.

Note that the letter M in the phylogenetic tree (Fig. 231:1) 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 reference 164 below.
Reference(s): No. 164
Updated:2021-11-18

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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