Name: Pyramidobacter piscolens Downes et al. 2009

Category: Species

Proposed as: sp. nov.

Etymology: pisc’o.lens. L. masc. n. piscis (gen. piscis), fish; L. pres. part. olens, smelling; N.L. masc. part. adj. piscolens, smelling of fish

Pronunciation (Latin), gender: … PISK-o-lens, masculine

Type strain: CCUG 55836; DSM 21147; JCM 16336; W5455

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EU379932 Analyse FASTA

Valid publication: Downes J, Vartoukian SR, Dewhirst FE, Izard J, Chen T, Yu WH, Sutcliffe IC, Wade WG. Pyramidobacter piscolens gen. nov., sp. nov., a member of the phylum 'Synergistetes' isolated from the human oral cavity. Int J Syst Evol Microbiol 2009; 59:972-980. 🇬🇧

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 5 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:1853-1855.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 🥇 Nomenclatural type of the genus Pyramidobacter Downes et al. 2009. Publication: Downes J, Vartoukian SR, Dewhirst FE, Izard J, Chen T, Yu WH, Sutcliffe IC, Wade WG. Pyramidobacter piscolens gen. nov., sp. nov., a member of the phylum 'Synergistetes' isolated from the human oral cavity. Int J Syst Evol Microbiol 2009; 59:972-980. 🇬🇧
  • 😷 The risk group for Germany has been imported on 2023-10-29. 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 19 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 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. 🇬🇧

Parent taxon: Pyramidobacter Downes et al. 2009

Assigned by: Downes J, Vartoukian SR, Dewhirst FE, Izard J, Chen T, Yu WH, Sutcliffe IC, Wade WG. Pyramidobacter piscolens gen. nov., sp. nov., a member of the phylum 'Synergistetes' isolated from the human oral cavity. Int J Syst Evol Microbiol 2009; 59:972-980. 🇬🇧

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Record number: 787877