Name: Rickettsiales Gieszczykiewicz 1939 (Approved Lists 1980)

Category: Order

Proposed as: ord. nov.

Etymology: N.L. fem. n. Rickettsia, type genus of the order; L. fem. pl. n. suff. -ales, ending to denote an order; N.L. fem. pl. n. Rickettsiales, the Rickettsia order

Gender: feminine

Type genus: Rickettsia da Rocha-Lima 1916 (Approved Lists 1980)

Effective publication: Gieszczykiewicz M. Zagadniene systematihki w bakteriologii - Zür Frage der Bakterien-Systematic. Bulletin de l'Académie Polonaise des Sciences Série des Sciences Biologiques 1939; 1:9-27.

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

• Emendations:
  • Brenner et al. 1993 Brenner DJ, O'Connor SP, Winkler HH, Steigerwalt AG. Proposals to unify the genera Bartonella and Rochalimaea, with descriptions of Bartonella quintana comb. nov., Bartonella vinsonii comb. nov., Bartonella henselae comb. nov., and Bartonella elizabethae comb. nov., and to remove the family Bartonellaceae from the order Rickettsiales. Int J Syst Bacteriol 1993; 43:777-786. Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 43, part 4 of the IJSB. Int J Syst Bacteriol 1994; 44:184.
    Notes:
    • Emendation accompanied by the inclusion of 2 families in the order.
  • Dumler et al. 2001 Dumler JS, Barbet AF, Bekker CP, Dasch GA, Palmer GH, Ray SC, Rikihisa Y, Rurangirwa FR. Reorganization of genera in the families Rickettsiaceae and Anaplasmataceae in the order Rickettsiales: unification of some species of Ehrlichia with Anaplasma, Cowdria with Ehrlichia and Ehrlichia with Neorickettsia, descriptions of six new species combinations and designation of Ehrlichia equi and 'HGE agent' as subjective synonyms of Ehrlichia phagocytophila. Int J Syst Evol Microbiol 2001; 51:2145-2165. Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 6 of the IJSEM. Int J Syst Evol Microbiol 2002; 52:5-6.

• Notes:
  • Nomenclatural type of the class Alphabacteria Cavalier-Smith 2002. Publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76.
  • Nomenclatural type of the subclass "Rickettsidae" Ferla et al. 2013. Publication: Ferla MP, Thrash JC, Giovannoni SJ, Patrick WM. New rRNA gene-based phylogenies of the Alphaproteobacteria provide perspective on major groups, mitochondrial ancestry and phylogenetic instability. PLoS One 2013; 8:e83383.
  • Nomenclatural type of the subclass "Rickettsiidae" corrig. Ferla et al. 2013. Publication: Ferla MP, Thrash JC, Giovannoni SJ, Patrick WM. New rRNA gene-based phylogenies of the Alphaproteobacteria provide perspective on major groups, mitochondrial ancestry and phylogenetic instability. PLoS One 2013; 8:e83383.
  • Breed et al. (1948) assigned this order to the class Schizomycetes Nägeli 1857 (Approved Lists 1980). Publication: Burkholder WH. Genus I. Pseudomonas Migula. Bacterial plant pathogens. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 82-150.
  • Breed et al. (1957) assigned this order to the class Microtatobiotes Philip 1956 (Approved Lists 1980). Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • Ferla et al. (2013) assigned this order to the subclass "Rickettsiidae" corrig. Ferla et al. 2013. Publication: Ferla MP, Thrash JC, Giovannoni SJ, Patrick WM. New rRNA gene-based phylogenies of the Alphaproteobacteria provide perspective on major groups, mitochondrial ancestry and phylogenetic instability. PLoS One 2013; 8:e83383.
  • Breed et al. (1948) assigned the family "Chlamydozoaceae" Breed et al. 1948 to this order. Publication: Burkholder WH. Genus I. Pseudomonas Migula. Bacterial plant pathogens. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 82-150.
  • Breed et al. (1957) assigned the family Bartonellaceae Gieszczykiewicz 1939 (Approved Lists 1980) to this order. Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • Breed et al. (1957) assigned the family Chlamydiaceae Rake 1957 (Approved Lists 1980) to this order. Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • Breed et al. (1957) assigned the tribe Wolbachieae Philip 1955 (Approved Lists 1980) to this order. Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • Brenner et al. (1993) assigned the family Anaplasmataceae Philip 1957 (Approved Lists 1980) to this order. Publication: Brenner DJ, O'Connor SP, Winkler HH, Steigerwalt AG. Proposals to unify the genera Bartonella and Rochalimaea, with descriptions of Bartonella quintana comb. nov., Bartonella vinsonii comb. nov., Bartonella henselae comb. nov., and Bartonella elizabethae comb. nov., and to remove the family Bartonellaceae from the order Rickettsiales. Int J Syst Bacteriol 1993; 43:777-786.
  • Brenner et al. (2005) assigned the family Holosporaceae Görtz and Schmidt 2006 to this order. Publication: Görtz HD, Schmidt HJ. Family III. Holosporaceae fam. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 146-149.
  • Hess et al. (2016) assigned the family "Candidatus Paracaedibacteraceae" Hess et al. 2016 to this order. Publication: Hess S, Suthaus A, Melkonian M. "Candidatus Finniella" (Rickettsiales, Alphaproteobacteria), Novel Endosymbionts of Viridiraptorid Amoeboflagellates (Cercozoa, Rhizaria). Appl Environ Microbiol 2016; 82:659-670.
  • Philip (1962) assigned the family "Rickettsaceae" to this order. Publication: Philip CB. Appendix G. Summary of tickborne rickettsioses. Report 2nd Meeting FAOIE Expert Panel on Tick-borne Diseases of Livestock, Cairo. United Nations, Rome, 1962.
  • Thrash et al. (2011) assigned the family "Candidatus Pelagibacteraceae" Thrash et al. 2011 to this order. Publication: Thrash JC, Boyd A, Huggett MJ, Grote J, Carini P, Yoder RJ, Robbertse B, Spatafora JW, Rappe MS, Giovannoni SJ. Phylogenomic evidence for a common ancestor of mitochondria and the SAR11 clade. Sci Rep 2011; 1:13.
  • Wang et al. (2004) assigned the genus "Candidatus Hepatincola" Wang et al. 2004 to this order. Publication: Wang Y, Stingl U, Anton-Erxleben F, Zimmer M, Brune A. ' Candidatus Hepatincola porcellionum' gen. nov., sp. nov., a new, stalk-forming lineage of Rickettsiales colonizing the midgut glands of a terrestrial isopod. Arch Microbiol 2004; 181:299-304.
  • This taxon name is occasionally misprinted in some sources as: "Itickettsiales"; "Rickeftsiales"; "Rickeitsiales"; "Rickellsiales"; "Rickeltsiales"; "Rickensiales"; "Ricketfsiales"; "Ricketkriales"; "Ricketmiales"; "Rickettiales"; "Rickettisales"; "Rickettsialles"; "Ricliettsiales"; "Ricltettsiales"; "Riskettsiales".
  • This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Johansson KE. International Committee on Systematic Bacteriology Subcommittee on the taxonomy of Mollicutes. Minutes of the meetings, 21 and 28 July 1998, Sydney, Australia. Int J Syst Evol Microbiol 2000; 50:1393-1397.
  • The phylogenomic assignment score of this taxon is 0.03943 (N = 7).
  • The BRCs most frequently used for deposits in this group are: ATCC: 49; DSM: 14; CIP: 1.
  • On the Approved Lists of Bacterial Names and on the amended edition of the Approved Lists of Bacterial Names, the author's name Gieszczykiewicz is mis-spelt Gieszczkiewicz (sic). Publication: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
  • This name was mentioned in a Request for an Opinion. Publication: Goker M. Solving the remaining problems with names of classes. Request for an Opinion. Int J Syst Evol Microbiol 2022; 72:5605.

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 6

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Deianiraeaceae" Castelli et al. 2019	not validly published
    Ehrlichiaceae Moshkovski 1945 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Candidatus Midichloriaceae" Montagna et al. 2013	not validly published
    Rickettsiaceae Pinkerton 1936 (Approved Lists 1980)	validly published under the ICNP	correct name
    [Rickettsiales, not assigned to family]	artificial parent node of taxa incertae sedis
    "Candidatus Tenuibacteraceae" Kroer et al. 2016	not validly published

Parent taxon: Alphaproteobacteria Garrity et al. 2006

Assigned by: Garrity GM, Bell JA, Lilburn T. Class I. Alphaproteobacteria class. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1.

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Record number: 5026