Name: Desulfomicrobium orale Langendijk et al. 2001

Category: Species

Proposed as: sp. nov.

Etymology: o.ra’le. L. neut. adj. orale, of the mouth

Pronunciation, gender: o-RA-le, neuter

Type strain: DSM 12838; JCM 17150; NY678

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB573871 Analyse FASTA

Valid publication: Langendijk PS, Kulik EM, Sandmeier H, Meyer J, van der Hoeven JS. Isolation of Desulfomicrobium orale sp. nov. and Desulfovibrio strain NY682, oral sulfate-reducing bacteria involved in human periodontal disease. Int J Syst Evol Microbiol 2001; 51:1035-1044.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 3 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:1231-1233.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • 😷 The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — 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 8 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 a putative 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.
  • 🧍 At the time of publication, the type strain was not deposited in two publicly accessible service collections in different countries, and Desulfomicrobium orale Langendijk et al. 2001 was not validly published [Rules 27(3) and 30]. However, according to the Judicial Opinion 81, Desulfomicrobium orale Langendijk et al. 2001 is now considered to be validly published, since deposit in a second culture collection in a different country has been documented. Publication: Euzeby JP, Tindall BJ. Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an opinion. Int J Syst Evol Microbiol 2004; 54:293-301.
  • 🧍 The specific epithet orale is a Neo Latin adjective in the neuter gender, not a Latin noun in the genitive case as cited by Langendijk et al. 2001. Publication: Judicial Commission. Judicial Opinion No. 81. Int J Syst Evol Microbiol 2008; 58:1755-1763.

Parent taxon: Desulfomicrobium Rozanova et al. 1994

Assigned by: Langendijk PS, Kulik EM, Sandmeier H, Meyer J, van der Hoeven JS. Isolation of Desulfomicrobium orale sp. nov. and Desulfovibrio strain NY682, oral sulfate-reducing bacteria involved in human periodontal disease. Int J Syst Evol Microbiol 2001; 51:1035-1044.

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Record number: 775587