Name: Sulfolobus acidocaldarius Brock et al. 1972 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: a.ci.do.cal.da.ri.us. L. neut. adj. acidum, an acid; from L. masc. adj. acidus, sour; L. masc. adj. caldarius, pertaining to warm or hot; N.L. masc. adj. acidocaldarius, organism living in acid-hot environments

Gender: masculine

Type strain: ATCC 33909; DSM 639; IFO 15157; JCM 8929; NBRC 15157

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D14876 Analyse FASTA

Effective publication: Brock TD, Brock KM, Belly RT, Weiss RL. Sulfolobus: a new genus of sulfur-oxidizing bacteria living at low pH and high temperature. Arch Mikrobiol 1972; 84:54-68.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Sulfolobus Brock et al. 1972 (Approved Lists 1980). Publication: Brock TD, Brock KM, Belly RT, Weiss RL. Sulfolobus: a new genus of sulfur-oxidizing bacteria living at low pH and high temperature. Arch Mikrobiol 1972; 84:54-68.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — 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 665 times in PubMed until 2024-03-28.

Parent taxon: Sulfolobus Brock et al. 1972 (Approved Lists 1980)

Assigned by: Brock TD, Brock KM, Belly RT, Weiss RL. Sulfolobus: a new genus of sulfur-oxidizing bacteria living at low pH and high temperature. Arch Mikrobiol 1972; 84:54-68.

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Record number: 782310