|Categories:||Motile; notifiable diseases and bacteria|
|Etymology:||Genus name: fungus shaped.|
Species epithet: chicken poisoning (infecting).
|Type Strain:||PG31 = ATCC 19610 = NCTC 10115.|
||Forms small very typical umbonated colonies ("fried egg appearance"). The macro morphology can be observed in a microscope.|
|Micromorphology:||Very small and flask-shaped. M. gallisepticum has gliding motility on surfaces.|
|Gram +/Gram -:||G-, but is normally not gram stained because the cells will then be fragmented.|
|Metabolism:||Facultatively anaerobic. Glucose fermenter.|
|Fermentation of carbohydrates:||Glucose +|
|Spec. Char.:||Lacks a cell wall.|
|Disease:||Avian mycoplasmosis (Chronic respiratory disease in chickens and infectious sinusitis in turkey).
|Clinical Picture:||Chicken:reduced egg production. Turkey: reduced egg production and swollen paranasal sinuses.|
|Diagnostics:||Cultivation and immunofluorescens, PCR.|
|16S rRNA Seq.:|
||About 125 species have been described within the genus Mycoplasma. M. gallisepticum is rather closely related to M. pneumoniae and these mycoplasmas (the M. pneumoniae cluster) are together with the Ureaplasma cluster and the the hemotropic mycoplasmas included in the phylogenetic pneumoniae group. See phylogenetic tree (Fig. 36:2).|
|Legislation:||Avian mycoplasmosis caused by M. gallisepticum is included in OIE's B-list of major animal diseases. The disease is notifyable in Sweden|
|Comment:||Note that the mycoplasmas have recently been transferred to a new phylum, Tenericutes. Mollicutes do not belong to the phylum Firmicutes any longer.|
|"Dear child has many names" (call it what you will...)|
For a long time, Rhodococcus hoagii was referred to Rhodococcus equi on VetBact, because we experienced some resistance to the name that is now considered to be the correct one, i.e. Rhodococcus hoagii. Now you can find the bacterium in question under the correct name in VetBact, but you can also find the bacterium when searching for the old name.Published 2021-10-10. Read more...