Name: Microellobosporia grisea (Konev et al. 1967) Pridham 1970 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Microechinospora grisea" Konev et al. 1967

Etymology: gri’se.a. M.L. fem. adj. grisea, gray

Pronunciation (Latin), gender: … GRI-se-a, feminine

Type strain: ATCC 19618; DSM 43035; IFM 1243; IFO 12518; IMET 43494; JCM 3066; KCC 3066; KCC A-66; KCTC 9178; NBRC 12518; NCIMB 9918; RIA 554; RIA 897; VKM Ac-1226

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB184100 Analyse FASTA

Effective publication: Pridham TG. New names and new combinations in the order Actinomycetales Buchanan 1917. Bulletin of the United States Department of Agriculture 1970; 1424:1-55.

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 pseudoechinosporeus Goodfellow et al. 1986

Risk group: 1

• Synonyms:

  • Name	Kind
    Streptomyces pseudoechinosporeus Goodfellow et al. 1986	homotypic synonym, validly published under the ICNP
    "Microechinospora grisea" Konev et al. 1967	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • ❗ Microellobosporia grisea is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Microellobosporia.
  • 😷 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 11 times in PubMed until 2025-06-04.
  • 🙅 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 species. The name is on LoRN because of the recorded risk group of the genus.

Parent taxon: Microellobosporia Cross et al. 1963 (Approved Lists 1980)

Assigned by: Pridham TG. New names and new combinations in the order Actinomycetales Buchanan 1917. Bulletin of the United States Department of Agriculture 1970; 1424:1-55.

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Record number: 778149