Name: Ureibacillus thermosphaericus (Andersson et al. 1996) Fortina et al. 2001

Category: Species

Proposed as: comb. nov.

Basonym: Bacillus thermosphaericus Andersson et al. 1996

Etymology: ther.mo.sphae’ri.cus. Gr. masc. adj. thermos, heat; L. masc. adj. sphaericus, spherical; N.L. masc. adj. thermosphaericus, the hot sphere

Pronunciation, gender: t^her-mo-SP^HA͡E-ri-kus, masculine

Type strain: CIP 104857; DSM 10633; HAMBI 1900; LMG 17959; P-11

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB101594 Analyse FASTA

Valid publication: Fortina MG, Pukall R, Schumann P, Mora D, Parini C, Manachini PL, Stackebrandt E. Ureibacillus gen. nov., a new genus to accommodate Bacillus thermosphaericus (Andersson et al. 1995), emendation of Ureibacillus thermosphaericus and description of Ureibacillus terrenus sp. nov. Int J Syst Evol Microbiol 2001; 51:447-455. 🇮🇹

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 2 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:795-796.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Synonyms:

  • Name	Kind
    Bacillus thermosphaericus Andersson et al. 1996	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Ureibacillus Fortina et al. 2001. Publication: Fortina MG, Pukall R, Schumann P, Mora D, Parini C, Manachini PL, Stackebrandt E. Ureibacillus gen. nov., a new genus to accommodate Bacillus thermosphaericus (Andersson et al. 1995), emendation of Ureibacillus thermosphaericus and description of Ureibacillus terrenus sp. nov. Int J Syst Evol Microbiol 2001; 51:447-455. 🇮🇹
  • 😷 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 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 29 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.
  • 🧍 In the paper by Fortina et al. the basonym is erroneously cited as Bacillus thermosphaericus Andersson et al. 1995 (sic). Publication: Andersson M, Laukkanen M, Nurmiaho-Lassila EL, Rainey FA, Niemelä SI, Salkinoja-Salonen M. Bacillus thermosphaericus sp. nov. a new thermophilic ureolytic bacillus isolated from air. Syst. Appl. Microbiol. 1995; 18:203-220.

Parent taxon: Ureibacillus Fortina et al. 2001

Assigned by: Fortina MG, Pukall R, Schumann P, Mora D, Parini C, Manachini PL, Stackebrandt E. Ureibacillus gen. nov., a new genus to accommodate Bacillus thermosphaericus (Andersson et al. 1995), emendation of Ureibacillus thermosphaericus and description of Ureibacillus terrenus sp. nov. Int J Syst Evol Microbiol 2001; 51:447-455. 🇮🇹

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Record number: 782926