Name: Thermoplasma acidophilum corrig. Darland et al. 1970 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: a.ci.do’phi.lum. L. neut. adj. acidum, an acid; from L. adj. acidus -a -um, sour; N.L. neut. adj. suff. -philum, friend, loving; from Gr. neut. adj. philon, friend; N.L. neut. adj. acidophilum, acid-loving

Pronunciation (Latin), gender: t^her-mo-PLAS-ma a-ki-DO-p^hi-lum, neuter

Type strain: AMRC-C 165; ATCC 25905; DSM 1728; IFO 15155; JCM 9062; NBRC 15155

Conduct genome-based taxonomy at

16S rRNA gene: M38637 Analyse FASTA

Effective publication: Darland G, Brock TD, Samsonoff W, Conti SF. A thermophilic, acidophilic mycoplasma isolated from a coal refuse pile. Science 1970; 170:1416-1418.

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

• Synonyms:

  • Name	Kind
    Thermoplasma acidophila Darland et al. 1970 (Approved Lists 1980)	other spelling of name, inaccurate spelling

• Emendations:
  • Segerer et al. 1988 Segerer A, Langworthy TA, Stetter KO. Thermoplasma acidophilum and Thermoplasma volcanium sp. nov. from solfatara fields. Syst. Appl. Microbiol. 1988; 10:161-171.
    Notes:
    • 🧍 As of 2020-09-22 this emendation was not yet included in an IJSEM List of Changes in Taxonomic Opinion.

• Notes:
  • 🥇 Nomenclatural type of the genus Thermoplasma Darland et al. 1970 (Approved Lists 1980). Publication: Darland G, Brock TD, Samsonoff W, Conti SF. A thermophilic, acidophilic mycoplasma isolated from a coal refuse pile. Science 1970; 170:1416-1418.
  • 😷 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 458 times in PubMed until 2026-06-11.

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

Assigned by: Darland G, Brock TD, Samsonoff W, Conti SF. A thermophilic, acidophilic mycoplasma isolated from a coal refuse pile. Science 1970; 170:1416-1418.

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Record number: 782620