|Etymology:||Genus name: fungus shaped.|
Species epithet: from pneumonia of a pig.
|Type Strain:||J = ATCC 25934 = NCTC 10110.|
||Forms small and atypical colonies, which lack a clearly defined nipple (no "fried egg appearance") and should be observed in a microscope.|
|Micromorphology:||Non-motile, very small small and pleomorphic|
|Gram +/Gram -:||G-, but is normally not gram stained because the cells will then be fragmented.|
|Metabolism:||Facultatively anaerobic. M. hyopneumoniae is a glucose fermenter, which lowers the pH in the growth medium.|
|Spec. Char.:||Lacks a cell wall.|
|Disease:||Porcine enzootic pneumonia or enzootic pneumonia in pigs (EPP) or swine enzootic pneumonia (SEP).
|Clinical Picture:||Coughing, poor growth rate and sometimes respiratory distress.|
|16S rRNA Seq.:|
||About 125 species have been described within the genus M. hyopneumoniae is closely related to M. flocculare, M. ovipneumoniae as well as M. dispar and belongs to the M. neurolyticum cluster within the hominis group.|
|Comment:||Note that the mycoplasmas have recently been transferred to a new phylum, Tenericutes.|