Name: Stygiolobus azoricus Segerer et al. 1991

Category: Species

Proposed as: sp. nov.

Etymology: a.zo’ri.cus. N.L. masc. adj. azoricus, from the Azores, referring to the place of isolation

Gender: masculine

Type strain: DSM 6296; FC6; JCM 9021

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D85520 Analyse FASTA

Valid publication: Segerer AH, Trincone A, Gahrtz M, Stetter KO. Stygiolobus azoricus gen. nov., sp. nov. represents a novel genus of anaerobic, extremely thermoacidophilic archaebacteria of the order Sulfolobales. Int. J. Syst. Bacteriol. 1991; 41:495-501.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 41, part 4 of the IJSB. Int J Syst Bacteriol 1992; 42:192.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Sakai et al. 2022 Sakai HD, Nakamura K, Kurosawa N. Stygiolobus caldivivus sp. nov., a facultatively anaerobic hyperthermophilic archaeon isolated from the Unzen hot spring in Japan. Int J Syst Evol Microbiol 2022; 72:5486. Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 72, part 8 of the IJSEM. Int J Syst Evol Microbiol 2022; 72:5644.

• Notes:
  • 🥇 Nomenclatural type of the genus Stygiolobus Segerer et al. 1991. Publication: Segerer AH, Trincone A, Gahrtz M, Stetter KO. Stygiolobus azoricus gen. nov., sp. nov. represents a novel genus of anaerobic, extremely thermoacidophilic archaebacteria of the order Sulfolobales. Int. J. Syst. Bacteriol. 1991; 41:495-501.
  • 😷 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 7 times in PubMed until 2024-03-27.

Parent taxon: Stygiolobus Segerer et al. 1991

Assigned by: Segerer AH, Trincone A, Gahrtz M, Stetter KO. Stygiolobus azoricus gen. nov., sp. nov. represents a novel genus of anaerobic, extremely thermoacidophilic archaebacteria of the order Sulfolobales. Int. J. Syst. Bacteriol. 1991; 41:495-501.

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Record number: 782278