Name: Parachlamydia acanthamoebae Everett et al. 1999

Category: Species

Proposed as: sp. nov.

Etymology: a.canth.a.moe’bae. N.L. gen. fem. n. acanthamoebae, of Acanthamoeba taxonomic name of a genus of Acanthamoebidae, of (living in) members of the genus Acanthamoeba

Pronunciation, gender: a-kant^h-a-MO͡E-ba͡e, feminine

Type strain: ATCC VR-1476; Bn9

Conduct genome-based taxonomy at

16S rRNA gene: Y07556 Analyse FASTA

Valid publication: Everett KD, Bush RM, Andersen AA. Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam. nov. and Simkaniaceae fam. nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms. Int J Syst Bacteriol 1999; 49:415-440. 🇺🇸

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 2 of the IJSB. Int J Syst Bacteriol 1999; 49:937-939.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    "Candidatus Parachlamydia acanthamoebae" Amann et al. 1997	homotypic synonym, not pro-validly published

• Emendations:
  • García-López et al. 2019 Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • 🥇 Nomenclatural type of the genus Parachlamydia Everett et al. 1999. Publication: Everett KD, Bush RM, Andersen AA. Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam. nov. and Simkaniaceae fam. nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms. Int J Syst Bacteriol 1999; 49:415-440. 🇺🇸
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — 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 90 times in PubMed until 2025-06-04.
  • 🧍 Parachlamydia acanthamoebae was previously known as "Candidatus Parachlamydia Acanthamoebae " Amann et al. 1997. — In the paper by Everett et al. 1999, the type strain is erroneously cited as ATCC VR 1476 (without dash). — Tang J. Personal communication, 2001-05-30.

Parent taxon: Parachlamydia Everett et al. 1999

Assigned by: Everett KD, Bush RM, Andersen AA. Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam. nov. and Simkaniaceae fam. nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms. Int J Syst Bacteriol 1999; 49:415-440. 🇺🇸

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Record number: 784565