Name: Williamsia faeni Jones et al. 2010

Category: Species

Proposed as: sp. nov.

Etymology: fae’ni. L. neut. n. faenum, hay; L. gen. neut. n. faeni, of hay, referring to the isolation of the type strain from a hay meadow

Pronunciation (Latin), gender: … FA͡E-ni, feminine

Type strain: DSM 45372; N1350; NCIMB 14575; NRRL B-24794

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: DQ157929 Analyse FASTA

Valid publication: Jones AL, Payne GD, Goodfellow M. Williamsia faeni sp. nov., an actinomycete isolated from a hay meadow. Int J Syst Evol Microbiol 2010; 60:2548-2551. 🇬🇧

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 60, part 11 of the IJSEM. Int J Syst Evol Microbiol 2011; 61:221-222.

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 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 the name to be applied to this species. The name is on LoRN because of the recorded pathogenicity of other species in the genus.
  • 🧍 In the protologue of the paper by Jones et al. 2010, the strains NCIMB 14575 and NRRL B-24794 are erroneously cited as NCIB 14575 and NRRL B24794, respectively. Publication: . Erratum. Int. J. Syst. Evol. Microbiol. 2010; 60:3002. 🇬🇧

Parent taxon: Williamsia Kämpfer et al. 1999

Assigned by: Jones AL, Payne GD, Goodfellow M. Williamsia faeni sp. nov., an actinomycete isolated from a hay meadow. Int J Syst Evol Microbiol 2010; 60:2548-2551. 🇬🇧

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Record number: 788893