"''Candidatus'' Midichloriaceae" is a family of
bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...
, included in the order
Rickettsiales.
No member of this family has been cultured in the laboratory, so the entire family has been given the status ''
candidatus''.
References
Rickettsiales
{{alphaproteobacteria-stub