|Category:||Primarily of interest in human medicin|
|Etymology:||Genus name: Named after Howard T. Ricketts, who showed which organism caused Rocky Mountain spotted fever, which resulted in his death|
Species epithet:from Switzerland.
|Significance:||[Of minor importance]|
|Type Strain:||C3 = ATCC VR-1375|
|Macromorphology (smell):||Cannot be cultivated on cell free substrates (for instance agar plates).|
|Micromorphology:||Pleomorphic rods (0.3-0.5 x 0.8-2.0 µm).|
|Gram +/Gram -:|
|Vector:||Tick (Ixodes ricinus).|
|Disease:||Tick borne rickettsiosis
|16S rRNA Seq.:|
||About 30 species have been described within the genus Ricketsia. This genus is relatively closely related to other genera within the orderRickettsialas (Anaplasma, Ehrlichia and Neorickettsia).|
|Comment:||An evolutionary interesting bacterium, because its ancestors invaded cells and formed the mitochondria by endosymbiosis.|
|New families introduced within the order Enterobacterales|
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...