Name: Microtetraspora viridis Nonomura and Ohara 1971 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: vi’ri.dis. L. fem. adj. viridis, green

Gender: feminine

Type strain: ATCC 27103; BCRC 13398; CBS 833.70; CCRC 13398; CIP 105478; DSM 43175; IFO 15238; IMET 9546; JCM 3112; KCTC 9290; NBRC 15238; VKM Ac-1315

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D85467 Analyse FASTA

Effective publication: Nonomura H, Ohara Y. Distribution of actinomycetes in soil. IX. New species of the genus Microbispora and Microtetraspora and their isolation methods. Journal of Fermentation Technology 1971; 49:887-894.

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: Actinomadura viridis (Nonomura and Ohara 1971) Miyadoh et al. 1989

Risk group: 1

• Synonyms:

  • Name	Kind
    Actinomadura viridis (Nonomura and Ohara 1971) Miyadoh et al. 1989	homotypic synonym, validly published under the ICNP
    Actinomadura malachitica Lavrova et al. 1972 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏰ According to Miyadoh et al. (1989), this species is an earlier heterotypic synonym of Actinomadura malachitica Lavrova et al. 1972 (Approved Lists 1980). Publication: Miyadoh S, Anzai H, Amano S, Shomura T. Actinomadura malachitica and Microtetraspora viridis are synonyms and should be transferred as Actinomadura viridis comb. nov. Int. J. Syst. Bacteriol. 1989; 39:152-158.
  • ❗ Microtetraspora viridis 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 Microtetraspora.
  • 😷 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 0 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: Microtetraspora Thiemann et al. 1968 (Approved Lists 1980)

Assigned by: Nonomura H, Ohara Y. Distribution of actinomycetes in soil. IX. New species of the genus Microbispora and Microtetraspora and their isolation methods. Journal of Fermentation Technology 1971; 49:887-894.

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Record number: 778263