Species Abiotrophia adiacens

Name: Abiotrophia adiacens corrig. (Bouvet et al. 1989) Kawamura et al. 1995

Category, proposed as: species, comb. nov.

Basonym: Streptococcus adjacens Bouvet et al. 1989

Etymology: ad’ia.cens. L. fem. part. adj. adiacens, adjacent, indicating that this organism can grow as satellite colonies adjacent to other bacterial growth

Pronunciation (Latin), gender: a-bi-o-TRO-p^hi-a AD-ia-kens, feminine

Type strain: ATCC 49175; CCUG 27809; CIP 103.243; DSM 9848; GaD; LMG 14496; NCTC 13000

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: MK330556 Analyse FASTA

Valid publication: Kawamura Y, Hou XG, Sultana F, Liu S, Yamamoto H, Ezaki T. Transfer of Streptococcus adjacens and Streptococcus defectivus to Abiotrophia gen. nov. as Abiotrophia adiacens comb. nov. and Abiotrophia defectiva comb. nov., respectively. Int J Syst Bacteriol 1995; 45:798-803. 🇯🇵

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 4 of the IJSB. Int J Syst Bacteriol 1996; 46:364-365.

Nomenclatural status: validly published under the ICNP

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

Correct name: Granulicatella adiacens corrig. (Bouvet et al. 1989) Collins and Lawson 2000

Risk group: 2

• Synonyms:

  • Name	Kind
    Granulicatella adiacens corrig. (Bouvet et al. 1989) Collins and Lawson 2000	homotypic synonym, validly published under the ICNP
    Streptococcus adiacens corrig. Bouvet et al. 1989	homotypic synonym, validly published under the ICNP
    Streptococcus adjacens Bouvet et al. 1989	homotypic synonym, inaccurate spelling

• Notes:
  • ❗ Abiotrophia adiacens 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 Abiotrophia.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — 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 20 times in PubMed until 2026-06-11.
  • 🙅 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 the species itself.
  • 🧍 The spelling of the specific epithet is adiacens in Abiotrophia adiacens (new combination) and adjacens in Streptococcus adjacens (basonym). Y. Kawamura et al. used adiacens because the IJSB editor recommended to use i instead of j. — Frederiksen W. Personal communication, unspecified date.

Parent taxon: Abiotrophia Kawamura et al. 1995

Assigned by: Kawamura Y, Hou XG, Sultana F, Liu S, Yamamoto H, Ezaki T. Transfer of Streptococcus adjacens and Streptococcus defectivus to Abiotrophia gen. nov. as Abiotrophia adiacens comb. nov. and Abiotrophia defectiva comb. nov., respectively. Int J Syst Bacteriol 1995; 45:798-803. 🇯🇵

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.772466Copy to clipboardLink copied to clipboard

Record number: 772466

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31