Name: Thermoplasma volcanium Segerer et al. 1988

Category: Species

Proposed as: sp. nov.

Etymology: vol.ca’ni.um. N.L. neut. adj. volcanium, belonging to Volcanus (Vulcan), the Roman god of fire, who lived in a volcano, the origin of isolation of the type strain

Pronunciation (Latin), gender: t^her-mo-PLAS-ma wol-KA-ni-um, neuter

Type strain: ATCC 51530; DSM 4299; GSS1; IFO 15438; JCM 9571; NBRC 15438

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ299215 Analyse FASTA

Effective publication: Segerer A, Langworthy TA, Stetter KO. Thermoplasma acidophilum and Thermoplasma volcanium sp. nov. from solfatara fields. Syst. Appl. Microbiol. 1988; 10:161-171.

IJSEM list: Anonymous. Validation list no. 26. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1988; 38:328-329.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😷 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 45 times in PubMed until 2026-06-11.

Parent taxon: Thermoplasma Darland et al. 1970 (Approved Lists 1980)

Assigned by: Segerer A, Langworthy TA, Stetter KO. Thermoplasma acidophilum and Thermoplasma volcanium sp. nov. from solfatara fields. Syst. Appl. Microbiol. 1988; 10:161-171.

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Record number: 782621