Name: Spiroplasma ixodetis Tully et al. 1995

Category: Species

Proposed as: sp. nov.

Etymology: i.xo.de.tis. N.L. gen. masc. n. ixodetis, of Ixodes, the genus name of Ixodes pacificus ticks, from which the organism was first isolated

Gender: neuter

Type strain: ATCC 33835; DSM 21590; Y32

Conduct genome-based taxonomy at

16S rRNA gene: GU585671 Analyse FASTA

Valid publication: Tully JG, Rose DL, Yunker CE, Carle P, Bove JM, Williamson DL, Whitcomb RF. Spiroplasma ixodetis sp. nov., a new species from Ixodes pacificus ticks collected in Oregon. Int J Syst Bacteriol 1995; 45:23-28.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 1 of the IJSB. Int J Syst Bacteriol 1995; 45:420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1, note = "PI?". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 39 times in PubMed until 2025-06-04.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of other species in the genus.
  • 🧍 Yarza et al. (2013) expected for accession GU585671, originating from the alleged type-strain deposit ATCC 33835, an affiliation with Spiroplasmataceae (Entomoplasmatales) but observed an affiliation with a deep branch in Entomoplasmatales and 86% similarity against Spiroplasma citri. Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.
  • 🧍 The 16S rRNA gene sequence of the type strain shows an unexpected affiliation with a deep branch in Entomoplasmatales (86% similarity against Spiroplasma citri). Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.

Parent taxon: Spiroplasma Saglio et al. 1973 (Approved Lists 1980)

Assigned by: Tully JG, Rose DL, Yunker CE, Carle P, Bove JM, Williamson DL, Whitcomb RF. Spiroplasma ixodetis sp. nov., a new species from Ixodes pacificus ticks collected in Oregon. Int J Syst Bacteriol 1995; 45:23-28.

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Record number: 784940