Genus Orientia
Warning: In the List of Prokaryotic names with Standing in Nomenclature, an arrow (→) only indicates the sequence of valid publication of names and does not mean that the last name in the sequence must be used (see: Introduction).
Number of species, including synonyms, cited in this file: 1
Number of subspecies, including synonyms, cited in this file: 0
Classification (Warning: see also the file "Classification of prokaryotes: Introduction").
For a detailed description of this taxon see Bergey’s Manual of Systematics of Archaea and Bacteria (BMSAB).
Orientia Tamura et al. 1995, gen. nov.
Type species: ¤ Orientia tsutsugamushi (Hayashi 1920) Tamura et al. 1995.
Etymology: N.L. fem. n. Orientia (from L. n. oriens -entis, the East, Orient), the Orient, the area where the organisms are widely distributed.
Valid publication: TAMURA (A.), OHASHI (N.), URAKAMI (H.) and 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.
Original article in IJSEM Online
Orientia tsutsugamushi (Hayashi 1920) Tamura et al. 1995, comb. nov. (Type species of the genus.)
Type strain: (see also Global Catalogue of Microorganisms) Karp = ATCC VR-150.
Sequence accession no. (16S rRNA gene) for the type strain: D38623.
Basonym: ¤ Rickettsia tsutsugamushi (Hayashi 1920) Ogata 1931 (Approved Lists 1980).
Etymology: Japanese n. tsutsugamushi (from two Japanese ideographs transliterated tsutuga something small and dangerous, and mushi a creature, now known to be a mite), popular name of the disease caused by this species, generally interpreted to mean "mite disease"; N.L. gen. n. tsutsugamushi, of a mite disease (of tsutsugamushi).
Other synonyms: "Theileria tsutsugamushi" Hayashi 1920, "Rickettsia orientalis" Nagayo et al. 1930, "Rickettsia akamushi" Kawamura and Imagawa 1931.
Reference: TAMURA (A.), OHASHI (N.), URAKAMI (H.) and 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.
Original article in IJSEM Online
Note: In the paper by Tamura et al. 1995, the type strain is erroneously cited as ATCC VR 150 (without dash).
Reference: TANG (J.): Personal communication (May 30, 2001).