Name: Leifsonia bigeumensis Dastager et al. 2008

Category: Species

Proposed as: sp. nov.

Etymology: bi.geu.men’sis. N.L. fem. adj. bigeumensis, of Bigeum Island, Korea, the source of the soil sample from which the type strain was isolated

Pronunciation (Latin), gender: … bi-ge͡u-MEN-sis, feminine

Type strain: DSM 19322; JCM 16949; KCTC 19268; MSL-27

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EF466124 Analyse FASTA

Valid publication: Dastager SG, Lee JC, Ju YJ, Park DJ, Kim CJ. Leifsonia bigeumensis sp. nov., isolated from soil on Bigeum Island, Korea. Int J Syst Evol Microbiol 2008; 58:1935-1938. 🇰🇷

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 8 of the IJSEM. Int J Syst Evol Microbiol 2008; 58:2473-2474.

Nomenclatural status: validly published under the ICNP

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

Correct name: Leifsonella bigeumensis (Dastager et al. 2008) Gtari et al. 2025

Risk group: 1

• Synonyms:

  • Name	Kind
    Leifsonella bigeumensis (Dastager et al. 2008) Gtari et al. 2025	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Leifsonia bigeumensis 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 Leifsonia.
  • 😷 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 other species in the genus.
  • 🧍 According to Ludwig et al. (2021), this "species affiliates away from the type species, and may be reclassified as Homoserinimonas". Publication: Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218. 🇪🇸
  • 🧍 The epithet bigeumensis in Leifsonia bigeumensis is a "N.L. fem. adj.", not a "N.L. masc. adj." as cited in the paper by Dastager et al. 2008. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷

Parent taxon: Leifsonia Evtushenko et al. 2000

Assigned by: Dastager SG, Lee JC, Ju YJ, Park DJ, Kim CJ. Leifsonia bigeumensis sp. nov., isolated from soil on Bigeum Island, Korea. Int J Syst Evol Microbiol 2008; 58:1935-1938. 🇰🇷

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Record number: 787506