Name: Mycoplasmataceae Freundt 1955 (Approved Lists 1980)

Category: Family

Proposed as: fam. nov.

Etymology: My.co.plas.ma.ta’ce.ae. N.L. neut. n. Mycoplasma, type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Mycoplasmataceae, the Mycoplasma family

Pronunciation, gender: my-ko-plas-ma-TA-ke-a͡e, feminine

Type genus: Mycoplasma Nowak 1929 (Approved Lists 1980)

Effective publication: Freundt EA. The classification of the Pleuropneumonia group of organisms (Borrelomycetales). International Bulletin of Bacteriological Nomenclature and Taxonomy 1955; 5:67-78.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Entomoplasmataceae Tully et al. 1993	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Tully et al. 1993 Tully JG, Bové JM, Laigret F, Whitcomb RF. Revised taxonomy of the class Mollicutes: proposed elevation of a monophyletic cluster of arthropod-associated mollicutes to ordinal rank (Entomoplasmatales ord. nov.), with provision for familial rank to separate species with nonhelical morphology (Entomoplasmataceae fam. nov.) from helical species (Spiroplasmataceae), and emended descriptions of the order Mycoplasmatales, family Mycoplasmataceae. Int. J. Syst. Bacteriol. 1993; 43:378-385. Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 43, part 2 of the IJSB. Int J Syst Bacteriol 1993; 43:625.
  • Gupta et al. 2018 Gupta RS, Sawnani S, Adeolu M, Alnajar S, Oren A. Phylogenetic framework for the phylum Tenericutes based on genome sequence data: proposal for the creation of a new order Mycoplasmoidales ord. nov., containing two new families Mycoplasmoidaceae fam. nov. and Metamycoplasmataceae fam. nov. harbouring Eperythrozoon, Ureaplasma and five novel genera. Antonie Van Leeuwenhoek 2018; 111:1583-1630. Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 1 genus in the family.
    • ⊖ Emendation accompanied by the removal of 2 genera from the family.
  • Gupta et al. 2019 Gupta RS, Son J, Oren A. A phylogenomic and molecular markers based taxonomic framework for members of the order Entomoplasmatales: proposal for an emended order Mycoplasmatales containing the family Spiroplasmataceae and emended family Mycoplasmataceae comprised of six genera. Antonie Van Leeuwenhoek 2019; 112:561-588. Oren A, Garrity GM. List of changes in taxonomic opinion no. 30. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:1850-1851.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 5 genera in the family.

• Notes:
  • 🧕 Tully et al. (1993) assigned this family to the order Entomoplasmatales Tully et al. 1993. Publication: Tully JG, Bové JM, Laigret F, Whitcomb RF. Revised taxonomy of the class Mollicutes: proposed elevation of a monophyletic cluster of arthropod-associated mollicutes to ordinal rank (Entomoplasmatales ord. nov.), with provision for familial rank to separate species with nonhelical morphology (Entomoplasmataceae fam. nov.) from helical species (Spiroplasmataceae), and emended descriptions of the order Mycoplasmatales, family Mycoplasmataceae. Int. J. Syst. Bacteriol. 1993; 43:378-385.
  • 🧒 Chen et al. (2013) assigned the genus "Schizoplasma" Furness et al. 1968 to this family. Publication: Chen Z, Ji W, Wang Y, Yan Y, Zhu H, Shao X, Xu J. Epidemiology and associations with climatic conditions of Mycoplasma pneumoniae and Chlamydophila pneumoniae infections among Chinese children hospitalized with acute respiratory infections. Ital J Pediatr 2013; 39:34.
  • 🧒 Robertson et al. (2002) assigned the genus Ureaplasma Shepard et al. 1974 (Approved Lists 1980) to this family. Publication: Robertson JA, Stemke GW, Davis JWJ, Harasawa R, Thirkell D, Kong F, Shepard MC, Ford DK. Proposal of Ureaplasma parvum sp. nov. and emended description of Ureaplasma urealyticum (Shepard et al. 1974) Robertson et al. 2001. Int J Syst Evol Microbiol 2002; 52:587-597.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Mycoplasrnutaceae"; "Mycoplusmutuceue".
  • 🎰 The BRCs most frequently used for deposits in this group are: ATCC: 177; NCTC: 142; DSM: 63; NBRC: 27; CIP: 27; IFO: 24; CCUG: 6; MCCM: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 5
Number of child taxa with a validly published name, including synonyms: 6
Total number of child taxa: 10

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    [Asterococcus]	preliminary entry that lacks crucial information
    "Edwardiiplasma" Gupta et al. 2019	not validly published	synonym
    Entomoplasma Tully et al. 1993	validly published under the ICNP	correct name
    Haemobartonella Tyzzer and Weinman 1939 (Approved Lists 1980)	validly published under the ICNP	correct name
    Mesoplasma Tully et al. 1993	validly published under the ICNP	correct name
    "Candidatus Moeniiplasma" Naito et al. 2017	not validly published	pro-correct name
    Mycoplasma Nowak 1929 (Approved Lists 1980)	validly published under the ICNP, conserved name	correct name
    Tullyiplasma Gupta et al. 2025	validly published under the ICNP	synonym
    "Candidatus Vermiplasma" Murakami et al. 2015	not validly published	pro-correct name
    Williamsoniiplasma Gupta et al. 2019	validly published under the ICNP	correct name

Parent taxon: Mycoplasmatales Freundt 1955 (Approved Lists 1980)

Assigned by: Gupta RS, Son J, Oren A. A phylogenomic and molecular markers based taxonomic framework for members of the order Entomoplasmatales: proposal for an emended order Mycoplasmatales containing the family Spiroplasmataceae and emended family Mycoplasmataceae comprised of six genera. Antonie Van Leeuwenhoek 2019; 112:561-588.

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Record number: 916