Name: Brevundimonas diminuta (Leifson and Hugh 1954) Segers et al. 1994

Category: Species

Proposed as: comb. nov.

Basonym: Pseudomonas diminuta Leifson and Hugh 1954 (Approved Lists 1980)

Etymology: di.mi.nu’ta. L. masc. perf. part. minutus, small; L. fem. part. adj. diminuta, defective, minute

Pronunciation (Latin), gender: brew-un-DI-mo-nas di-mi-NU-ta, feminine

Type strain: AJ 2067; ATCC 11568; BCRC 11894; CCEB 513; CCRC 11894; CCUG 1187; CCUG 1427; CGMCC 1.1798; CIP 63.27; DSM 7234; IAM 12691; IFO 12697; JCM 2788; LMG 1793; LMG 2089; NBRC 12697; NCAIM B.01118; NCCB 76050; NCIB 9393; NCIMB 9393; NCTC 8545; VKM B-1297

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB021415 Analyse FASTA

Valid publication: Segers P, Vancanneyt M, Pot B, Torck U, Hoste B, Dewettinck D, Falsen E, Kersters K, De Vos P. Classification of Pseudomonas diminuta Leifson and Hugh 1954 and Pseudomonas vesicularis Busing, Doll, and Freytag 1953 in Brevundimonas gen. nov. as Brevundimonas diminuta comb. nov. and Brevundimonas vesicularis comb. nov., respectively. Int J Syst Bacteriol 1994; 44:499-510. 🇧🇪

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 44, part 3 of the IJSB. Int J Syst Bacteriol 1994; 44:853.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Synonyms:

  • Name	Kind
    Pseudomonas diminuta Leifson and Hugh 1954 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Emendations:
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • 🥇 Nomenclatural type of the genus Brevundimonas Segers et al. 1994. Publication: Segers P, Vancanneyt M, Pot B, Torck U, Hoste B, Dewettinck D, Falsen E, Kersters K, De Vos P. Classification of Pseudomonas diminuta Leifson and Hugh 1954 and Pseudomonas vesicularis Busing, Doll, and Freytag 1953 in Brevundimonas gen. nov. as Brevundimonas diminuta comb. nov. and Brevundimonas vesicularis comb. nov., respectively. Int J Syst Bacteriol 1994; 44:499-510. 🇧🇪
  • 😷 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 = 1, note = "+". — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 2, note = "P650 = v". — 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 165 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. 🇬🇧

Parent taxon: Brevundimonas Segers et al. 1994

Assigned by: Segers P, Vancanneyt M, Pot B, Torck U, Hoste B, Dewettinck D, Falsen E, Kersters K, De Vos P. Classification of Pseudomonas diminuta Leifson and Hugh 1954 and Pseudomonas vesicularis Busing, Doll, and Freytag 1953 in Brevundimonas gen. nov. as Brevundimonas diminuta comb. nov. and Brevundimonas vesicularis comb. nov., respectively. Int J Syst Bacteriol 1994; 44:499-510. 🇧🇪

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Record number: 774245