Species Rhodothermus bifroesti

Name: Rhodothermus bifroesti Bergsten et al. 2022

Category, proposed as: species, sp. nov.

Etymology: bi.froes’ti. N.L. gen. neut. n. bifroesti, named after the burning rainbow bridge Bifröst in Norse mythology

Pronunciation (Latin), gender: r^ho-do-T^HER-mus bi-FRO͡ES-ti, masculine

Type strain: 7401; CIP 111906; DSM 112103; ISCAR-7401

Conduct genome-based taxonomy at

16S rRNA gene: MW901484 Analyse FASTA

Valid publication: Bergsten P, Vannier P, Mougeolle A, Rigaud L, Marteinsson VT. Rhodothermus bifroesti sp. nov., a thermophilic bacterium isolated from the basaltic subsurface of the volcanic island Surtsey. Int J Syst Evol Microbiol 2022; 72:5214. 🇮🇸

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 72, part 1 of the IJSEM. Int J Syst Evol Microbiol 2022; 72:5292.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 1 time in PubMed until 2026-06-11.

Parent taxon: Rhodothermus Alfredsson et al. 1995

Assigned by: Bergsten P, Vannier P, Mougeolle A, Rigaud L, Marteinsson VT. Rhodothermus bifroesti sp. nov., a thermophilic bacterium isolated from the basaltic subsurface of the volcanic island Surtsey. Int J Syst Evol Microbiol 2022; 72:5214. 🇮🇸

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Record number: 25839