Name: Thermoactinomyces intermedius Kurup et al. 1981

Category: Species

Proposed as: sp. nov.

Etymology: in.ter.me’di.us. L. masc. adj. intermedius, intercalated, intermediate

Pronunciation (Latin), gender: … in-ter-ME-di-us, masculine

Type strain: ATCC 33205; DSM 43846; IFO 14230; JCM 3312; KCTC 9646; NBRC 14230; NRRL B-16979; T-323; VKM Ac-1427

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF138734 Analyse FASTA

Effective publication: Kurup VP, Hollick GE, Pagan EF. Thermoactinomyces intermedius, a new species of amylase negative thermophilic actinomycetes. Science-Ciencia. Bol. Cien. Sur 1980; 7:104-108.

IJSEM list: Anonymous. Validation list no. 6. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1981; 31:215-218.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Notes:
  • 😷 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 19 times in PubMed until 2025-06-04.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.

Parent taxon: Thermoactinomyces Tsiklinsky 1899 (Approved Lists 1980)

Assigned by: Kurup VP, Hollick GE, Pagan EF. Thermoactinomyces intermedius, a new species of amylase negative thermophilic actinomycetes. Science-Ciencia. Bol. Cien. Sur 1980; 7:104-108.

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Record number: 782489