Name: Orientia Tamura et al. 1995

Category: Genus

Proposed as: gen. nov.

Etymology: Ori.ent’i.a. N.L. fem. n. Orientia, the Orient, the area where the organisms are widely distributed; from L. masc. n. oriens (gen. orientis), the East, Orient

Gender: feminine (stem: Orienti-)

Type species: Orientia tsutsugamushi (Hayashi 1920) Tamura et al. 1995

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Tamura A, Ohashi N, Urakami H, Miyamura S. Classification of Rickettsia tsutsugamushi in a new genus, Orientia gen. nov., as Orientia tsutsugamushi comb. nov. Int J Syst Bacteriol 1995; 45:589-591.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 3 of the IJSB. Int J Syst Bacteriol 1995; 45:881.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Notes:
  • Hoerdt et al. (2020) assigned this genus to the family Ehrlichiaceae Moshkovski 1945 (Approved Lists 1980). Publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468.
  • The type species of this genus has alternatively been placed in the genus [Theileria]. Publication: Hayashi N. Etiology of tsutsugamushi disease. Journal of Parasitology 1920; 7:53-68.
  • The type species of this genus has alternatively been placed in the genus Rickettsia da Rocha-Lima 1916 (Approved Lists 1980). Publication: Ogata N. Aetiologie der Tsutsugamuchi-Krankheit: Rickettsia tsutsugamushi. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, Abteilung I 1931; 122:249-253.
  • This taxon name is occasionally misprinted in some sources as: "Orientsia"; "Orietia"; "Orieutia".
  • The BRCs most frequently used for deposits in this group are: ATCC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 1
Number of child taxa with a validly published name, including synonyms: 1
Total number of child taxa: 6

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Orientia chiloeensis" corrig. Abarca et al. 2020	not validly published	preferred name (not correct name)
    "Candidatus Orientia chiloensis" Abarca et al. 2020	inaccurate spelling	misspelling (and no standing)
    "Candidatus Orientia chuto" Abarca et al. 2020	inaccurate spelling	misspelling (and no standing)
    "Orientia chuto" Izzard et al. 2010	not validly published	synonym (and no standing)
    "Candidatus Orientia mediorientalis" corrig. Abarca et al. 2020	not validly published	preferred name (not correct name)
    Orientia tsutsugamushi (Hayashi 1920) Tamura et al. 1995	validly published under the ICNP	correct name

Parent taxon: Rickettsiaceae Pinkerton 1936 (Approved Lists 1980)

Assigned by: 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.

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Record number: 517303