Name: Ochrobactrum pseudogrignonense Kämpfer et al. 2007

Category: Species

Proposed as: sp. nov.

Etymology: pseu.do.gri.gno.nen’se. Gr. neut. adj. pseudes, false; N.L. neut. adj. grignonense, a bacterial species epithet; N.L. neut. adj. pseudogrignonense, a false (Ochrobactrum) grignonense

Gender: neuter

Type strain: CCUG 30717; CIP 109451; DSM 22354

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AM422371 Analyse FASTA

Valid publication: Kampfer P, Scholz HC, Huber B, Falsen E, Busse HJ. Ochrobactrum haematophilum sp. nov. and Ochrobactrum pseudogrignonense sp. nov., isolated from human clinical specimens. Int J Syst Evol Microbiol 2007; 57:2513-2518.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 57, part 11 of the IJSEM. Int J Syst Evol Microbiol 2008; 58:313-314.

Nomenclatural status: validly published under the ICNP

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

Correct name: Brucella pseudogrignonensis (Kämpfer et al. 2007) Hördt et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    Brucella pseudogrignonensis (Kämpfer et al. 2007) Hördt et al. 2020	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Ochrobactrum pseudogrignonense 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 Ochrobactrum.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — 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 15 times in PubMed until 2025-06-04.
  • 🙅 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 pathogenicity 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 2022; 168:0.
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020). Publication: 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.

Parent taxon: Ochrobactrum Holmes et al. 1988

Assigned by: Kampfer P, Scholz HC, Huber B, Falsen E, Busse HJ. Ochrobactrum haematophilum sp. nov. and Ochrobactrum pseudogrignonense sp. nov., isolated from human clinical specimens. Int J Syst Evol Microbiol 2007; 57:2513-2518.

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Record number: 786918