Mycoplasmatales

Mycoplasmatales
Corn Stunt Spiroplasma in phloem cells. Thick section (0.4 micrometers) observed in a TEM. Magnified 75,000X.
Scientific classification
Domain:	Bacteria
Kingdom:	Bacillati
Phylum:	Mycoplasmatota
Class:	Mollicutes
Order:	Mycoplasmatales Freundt, 1955
Synonyms
Entomoplasmatales Tully et al. 1993 [1]

Mycoplasmatales is an order of bacteria in the class Mollicutes. The order consists of the families Spiroplasmataceae and Mycoplasmataceae. ^[2]

As currently (2025) defined by LPSN, ^[2] this class is synonymous to Entomoplasmatales, a class originally intended to include the arthropod-associated mollicutes. ^[1] Newer phylogenetic studies have found that Entomoplasmatales was not monophyletic like Tully had believed, but paraphyletic. The family Entomoplasmataceae of Tully was also paraphyletic by the exclusion of Mycoplasma. ^[3]

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) ^[4] and National Center for Biotechnology Information (NCBI). ^[5]

16S rRNA based LTP_10_2024 [6] [7] [8]	120 marker proteins based GTDB 09-RS220 [9] [10] [11]
Metamycoplasmataceae Mycoplasmoidales Spiroplasma ~1 Mycoplasmoidaceae Mycoplasmatales Spiroplasma {Spiroplasmataceae} Spiroplasma species-group 2 Mycoplasmataceae " Edwardiiplasma " Williamsoniiplasma " Tullyiplasma " Entomoplasma Mesoplasma Mycoplasma /Entomoplasmataceae /Entomoplasmatales	Mycoplasmatales "Ca. Spiroplasma holothuricola" {MT37} Mycoplasmoidaceae "Ca. Hepatoplasma" {"Hepatoplasmataceae"} Metamycoplasmataceae VBWQ01 Spiroplasma _D Mycoplasmataceae Spiroplasma Spiroplasma _B Spiroplasma _A " Edwardiiplasma " Williamsoniiplasma " Tullyiplasma " Entomoplasma Mesoplasma Mycoplasma

References

1. 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. Tully J.G., Bove J.M., Laigret F. and Whitcomb R.F., Int. J. Syst. Bacteriol., 1993, volume 43, pages 378-385 (article ^{[ permanent dead link ]})
2. "Order: Mycoplasmatales". lpsn.dsmz.de.
3. Gupta, Radhey S.; Son, Jeen; Oren, Aharon (2019). "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. 112 (4): 561–588. doi:10.1007/s10482-018-1188-4. ISSN   0003-6072 . Retrieved 2025-06-11.
4. J.P. Euzéby. "Entomoplasmatales". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2022-09-09.
5. Sayers; et al. "Entomoplasmatales". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2022-09-09.
6. "The LTP" . Retrieved 10 December 2024.
7. "LTP_all tree in newick format" . Retrieved 10 December 2024.
8. "LTP_10_2024 Release Notes" (PDF). Retrieved 10 December 2024.
9. "GTDB release 09-RS220". Genome Taxonomy Database . Retrieved 10 May 2024.
10. "bac120_r220.sp_labels". Genome Taxonomy Database . Retrieved 10 May 2024.
11. "Taxon History". Genome Taxonomy Database . Retrieved 10 May 2024.