Name: Rhodobacter azotoformans Hiraishi et al. 1997

Category: Species

Proposed as: sp. nov.

Etymology: a.zo.to.for’mans. French masc. n. azote, nitrogen; L. pres. part. formans, forming; N.L. masc. part. adj. azotoformans, nitrogen forming

Pronunciation (Latin), gender: … a-zo-to-FOR-mans, masculine

Type strain: CIP 105439; IFO 16436; JCM 9340; KA25; NBRC 16436

Conduct genome-based taxonomy at

16S rRNA gene: AB607332 Analyse FASTA

Effective publication: Hiraishi A, Muramatsu K, Ueda Y. Molecular genetic analyses of Rhodobacter azotoformans sp. nov. and related species of phototrophic bacteria. Syst. Appl. Microbiol. 1996; 19:168-177. 🇯🇵

IJSEM list: Anonymous. Validation list no. 61. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1997; 47:601-602.

Nomenclatural status: validly published under the ICNP

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

Correct name: Cereibacter azotoformans (Hiraishi et al. 1997) Hördt et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    "Luteovulum azotoformans" (Hiraishi et al. 1997) Suresh et al. 2019	homotypic synonym, not validly published
    Luteovulum azotoformans (Hiraishi et al. 1997) Suresh et al. 2020	homotypic synonym, validly published under the ICNP
    Cereibacter azotoformans (Hiraishi et al. 1997) Hördt et al. 2020	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Rhodobacter azotoformans 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 Rhodobacter.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — 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 = 1. — 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 23 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 other species in the genus.
  • 🧍 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: Rhodobacter Imhoff et al. 1984

Assigned by: Hiraishi A, Muramatsu K, Ueda Y. Molecular genetic analyses of Rhodobacter azotoformans sp. nov. and related species of phototrophic bacteria. Syst. Appl. Microbiol. 1996; 19:168-177. 🇯🇵

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Record number: 784770