Name: Thermus igniterrae Chung et al. 2000

Category: Species

Proposed as: sp. nov.

Etymology: i.gni.ter’rae. L. masc. n. ignis, fire (also as genitive); L. fem. n. terra, land, earth; N.L. gen. fem. n. igniterrae, of the land of fire, referring to Iceland

Pronunciation (Latin), gender: … i-n͡gni-TER-ra͡e, masculine

Type strain: ATCC 700962; DSM 12459; RF-4

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: Y18406 Analyse FASTA

Valid publication: Chung AP, Rainey FA, Valente M, Nobre MF, da Costa MS. Thermus igniterrae sp. nov. and Thermus antranikianii sp. nov., two new species from Iceland. Int J Syst Evol Microbiol 2000; 50:209-217. 🇵🇹

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 1 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:425-426.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• 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:
    • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project.

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 🧬 The phylogenomic assignment score of this taxon is 0.23392 (N = 2).
  • 😷 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. — 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 5 times in PubMed until 2025-06-04.

Parent taxon: Thermus Brock and Freeze 1969 (Approved Lists 1980)

Assigned by: Chung AP, Rainey FA, Valente M, Nobre MF, da Costa MS. Thermus igniterrae sp. nov. and Thermus antranikianii sp. nov., two new species from Iceland. Int J Syst Evol Microbiol 2000; 50:209-217. 🇵🇹

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Record number: 782663