Name: Cognatundibacterium jejuense (Kim et al. 2014) Lu et al. 2026

Category: Species

Proposed as: comb. nov.

Basonym: Undibacterium jejuense Kim et al. 2014

Etymology: je.ju.en’se. N.L. neut. adj. jejuense, pertaining to Jeju Island where the type strain was isolated

Pronunciation (Latin), gender: … je-ju-EN-se, neuter

Type strain: DSM 19386; JS4-4; KACC 12607; NBRC 108922

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KC735150 Analyse FASTA

Effective publication: Lu HB, Kong LY, Chen L, Chen GJ, Wang JJ. Isolation of diverse Undibacterium-related strains from alpine lakes and re-examining the taxonomic status of this genus. Syst Appl Microbiol 2025; 48:126661. 🇨🇳

IJSEM list: Oren A, Göker M. Validation list no. 227. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2026; 76:6989.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Undibacterium jejuense Kim et al. 2014	homotypic synonym, validly published under the ICNP

• Notes:
  • 🎓 Name mentioned 0 times in PubMed until 2026-02-03.

Parent taxon: Cognatundibacterium Lu et al. 2026

Assigned by: Lu HB, Kong LY, Chen L, Chen GJ, Wang JJ. Isolation of diverse Undibacterium-related strains from alpine lakes and re-examining the taxonomic status of this genus. Syst Appl Microbiol 2025; 48:126661. 🇨🇳

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Record number: 70396