Name: Porphyromonas uenonis Finegold et al. 2005

Category: Species

Proposed as: sp. nov.

Etymology: ue.no’nis. N.L. gen. masc. n. uenonis, of Ueno, to honor the Japanese microbiologist Kazue Ueno, who has contributed so much to our knowledge of Gram-negative anaerobic rods and anaerobic bacteriology in general

Pronunciation (Latin), gender: por-p^hy-RO-mo-nas u͡e-NO-nis, feminine

Type strain: ATCC BAA-906; CCUG 48615; DSM 23387; JCM 13868; WAL 9902

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB547668 Analyse FASTA

Effective publication: Finegold SM, Vaisanen ML, Rautio M, Eerola E, Summanen P, Molitoris D, Song Y, Liu C, Jousimies-Somer H. Porphyromonas uenonis sp. nov., a pathogen for humans distinct from P. asaccharolytica and P. endodontalis. J Clin Microbiol 2004; 42:5298-5301. 🇺🇸

IJSEM list: Euzeby JP. Validation list no. 102. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2005; 55:547-549.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 2

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 2. — 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 9 times in PubMed until 2026-06-11.
  • 🙆 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 risk group of the species itself.
  • 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Hahnke RL, Meier-Kolthoff JP, Garcia-Lopez M, Mukherjee S, Huntemann M, Ivanova NN, Woyke T, Kyrpides NC, Klenk HP, Goker M. Genome-Based Taxonomic Classification of Bacteroidetes. Front Microbiol 2016; 7:2003. 🇩🇪

Parent taxon: Porphyromonas Shah and Collins 1988

Assigned by: Finegold SM, Vaisanen ML, Rautio M, Eerola E, Summanen P, Molitoris D, Song Y, Liu C, Jousimies-Somer H. Porphyromonas uenonis sp. nov., a pathogen for humans distinct from P. asaccharolytica and P. endodontalis. J Clin Microbiol 2004; 42:5298-5301. 🇺🇸

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Record number: 784672