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Scientific classification
Kingdom: Bacteria
Phylum: Tenericutes
Class: Mollicutes
Order: Mycoplasmatales
Family: Mycoplasmataceae
Freundt 1955

Candidatus Hepatoplasma

The Mycoplasmataceae is a family of bacteria [1] in the order Mycoplasmatales. This family comprises the genera Mycoplasma and Ureaplasma.

In 1967 the Order Mycoplasmatales was incorporated into the class Mollicutes.[2] Many species are sexually transmitted and cause Pelvic inflammatory disease.[3]



Main article: Mycoplasma

Mycoplasma refers to a genus of bacteria that lack a cell wall and possess a three layered cellular membrane.[4] They can be parasitic or saprotrophic. Several species are sexually transmitted and pathogenic in humans. Others are found on cats, dogs, and barnyard fowl.


Ureaplasma is a genus of bacteria belonging to the family Mycoplasmataceae. As the name imples, ureaplasma is urease positive.

It includes the species:

Ureaplasma parvum has been identified as being a commensal in the uterus as part of the microbiome in healthy women of reproductive age.[5][6]

External links[edit]


  1. ^ E.A. Freundt The classification of the pleuropneumonia group of organisms (Borrelomycetales) International Bulletin of Bacteriological Nomenclature and Taxonomy, 1955, 5, 67-78.] (See page 73)
  2. ^ Edward, D.G.; Freundt, E.A. (1967). "Proposal for Mollicutes as name of the class established for the order Mycoplasmatales" (PDF). Int J Syst Bacteriol 17: 269–272. doi:10.1099/00207713-17-3-267. 
  3. ^ Ljubin-Sternak, Suncanica; Mestrovic, Tomislav (2014). "Review: Clamydia trachonmatis and Genital Mycoplasmias: Pathogens with an Impact on Human Reproductive Health". Journal of Pathogens 2014 (183167). doi:10.1155/2014/183167. PMC 4295611. PMID 25614838. 
  4. ^ Ryan KJ, Ray CG (editors) (2004). Sherris Medical Microbiology (4th ed.). McGraw Hill. pp. 409–12. ISBN 0-8385-8529-9. 
  5. ^ Yarbrough, V. L.; Winkle, S.; Herbst-Kralovetz, M. M. (2014). "Antimicrobial peptides in the female reproductive tract: a critical component of the mucosal immune barrier with physiological and clinical implications". Human Reproduction Update 21 (3): 353–377. doi:10.1093/humupd/dmu065. ISSN 1355-4786. PMID 25547201. 
  6. ^ Mor, Gil; Kwon, Ja-Young (2015). "Trophoblast-microbiome interaction: a new paradigm on immune regulation". American Journal of Obstetrics and Gynecology 213 (4): S131–S137. doi:10.1016/j.ajog.2015.06.039. ISSN 0002-9378. PMID 26428492.