Name: Microtetraspora pusilla (Nonomura and Ohara 1971) Kroppenstedt et al. 1991

Category: Species

Proposed as: comb. nov.

Basonym: Actinomadura pusilla Nonomura and Ohara 1971 (Approved Lists 1980)

Etymology: pu.sil’la. L. fem. adj. pusilla, very small, referring to the aerial mycelium of the organism

Pronunciation, gender: pu-SIL-la, feminine

Type strain: ATCC 27296; BCRC 11619; CBS 262.72; CCRC 11619; CECT 3284; CIP 106954; DSM 43357; IFO 14684; IMET 9586; JCM 3144; KCTC 9278; NBRC 14684; NCIB 11116; NCIMB 11116; NRRL B-16126; VKM Ac-1508

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D85491 Analyse FASTA

Effective publication: Kroppenstedt RM, Stackebrandt E, Goodfellow M. Taxonomic revision of the actinomycete genera Actinomadura and Microtetraspora. Syst. Appl. Microbiol. 1990; 13:148-160.

IJSEM list: Anonymous. Validation list no. 37. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1991; 41:331.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Nonomuraea pusilla corrig. (Nonomura and Ohara 1971) Zhang et al. 1998

Risk group: 1

• Synonyms:

  • Name	Kind
    Nonomuraea pusilla corrig. (Nonomura and Ohara 1971) Zhang et al. 1998	homotypic synonym, validly published under the ICNP
    Actinomadura pusilla Nonomura and Ohara 1971 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Nonomuria pusilla (Nonomura and Ohara 1971) Zhang et al. 1998	homotypic synonym, inaccurate spelling

• Notes:
  • ❗ Microtetraspora pusilla 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 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 2 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: Kroppenstedt RM, Stackebrandt E, Goodfellow M. Taxonomic revision of the actinomycete genera Actinomadura and Microtetraspora. Syst. Appl. Microbiol. 1990; 13:148-160.

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Record number: 778254