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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mycoplasma haemofelis
Etymology: Genus name: fungus shaped.
Species epithet: from the blood of the cat.
Significance:  [Very important]   
Old Species Name(s):Haemobartonella felis, Eperythrozoon felis (rickettsia)
Taxonomy:
Phylum
Tenericutes
Class
Mollicutes
Order
Mycoplasmatales
Family
Mycoplasmataceae 
Genus
Mycoplasma
Type Strain: Not defined
Macromorphology (smell): Cannot be cultivated on artificial media.
Micromorphology: Very small and pleomorphic
Gram +/Gram -:G-, but is normally not gram stained because the cells will then be fragmented.
Catalase/Oxidase:
Spec. Char.: Lacks the cell wall.
Vector: Fleas are supposed to be vectors.
Disease:Feline haemotropic mycoplasmosis or hemolytic anemia in cats.
Hosts: Cat
Clinical Picture: The clinical picture varies from mild (fatigue, eat less) to serious illness and death. Anemia
Genome Sequence:
Acc-noStrainSize (bp)Genome
FR773153 Langford 1 1 147 259 1c + 0 
Two strains have been sequenced.

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
U88563 Ohio-Florida 1402 

Taxonomy/phylogeny:
 
About 125 species have been described within the genus Mycoplasma. M. haemofelis belongs to the hemotropic mycoplasmas and they form a phylogenetic cluster of their own. However, they are distantly related to mycoplasmas within the M. pneumoniae cluster and the Ureaplasma cluster. They are, therefore, included in the phylogenetic pneumoniae group. See phylogenetic tree (Fig. 42:1). It was believed for a long time that the hemotropic mycoplasmas were rickettsias, but by phylogenetic methods among others, it has been proved that they really are mycoplasmas.
Comment:Colonizes the surface of erythrocytes. Note that the mycoplasmas have recently been transferred to a new phylum, Tenericutes.
Updated:2016-01-27

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