Name: Streptomyces diastaticus subsp. ardesiacus (Baldacci et al. 1955) Pridham et al. 1958 (Approved Lists 1980)

Category: Subspecies

Proposed as: comb. nov.

Basonym: "Actinomyces diastaticus subsp. ardesiacus" Baldacci et al. 1955

Etymology: ar.de.si’a.cus. N.L. masc. adj. ardesiacus, intended to mean slate colored (from Italian n. ardesia, slate)

Gender: masculine

Type strain: CBS 100.56; CGMCC 4.1682; DSM 40934; IFO 15402; JCM 5815; NBRC 15402; NRRL B-1773

Conduct genome-based taxonomy at

16S rRNA gene: AB184653 Analyse FASTA

Effective publication: Pridham TG, Hesseltine CW, Benedict RG. A guide for the classification of streptomycetes according to selected groups; placement of strains in morphological sections. Appl Microbiol 1958; 6:52-79.

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: synonym (and not recommended for medical use)

Correct name: Streptomyces ardesiacus (Baldacci et al. 1955) Komaki and Tamura 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    "Actinomyces diastaticus subsp. ardesiacus" Baldacci et al. 1955	homotypic synonym, not validly published, basonym of name in Approved Lists
    Streptomyces ardesiacus (Baldacci et al. 1955) Komaki and Tamura 2020	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • ❗ Streptomyces diastaticus subsp. ardesiacus is the correct name instead if this subspecies is regarded as a separate subspecies (i.e., if its nomenclatural type is not assigned to another subspecies whose name is validly published, legitimate and not rejected and has priority) within a separate species Streptomyces diastaticus within a separate genus Streptomyces.
  • 😷 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.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this subspecies. The name is on LoRN because of the recorded risk group of the genus.

Parent taxon: Streptomyces diastaticus (Krainsky 1914) Waksman and Henrici 1948 (Approved Lists 1980)

Assigned by: Pridham TG, Hesseltine CW, Benedict RG. A guide for the classification of streptomycetes according to selected groups; placement of strains in morphological sections. Appl Microbiol 1958; 6:52-79.

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Record number: 781611