Name: Rhodobacter johrii Girija et al. 2010

Category: Species

Proposed as: sp. nov.

Etymology: joh’ri.i. N.L. gen. masc. n. johrii, of B. N. Johri, an eminent and well-known Indian microbiologist

Pronunciation, gender: JOH-ri-i, masculine

Type strain: DSM 18678; JA192; JCM 14543; MTCC 8172

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AM398152 Analyse FASTA

Valid publication: Girija KR, Sasikala Ch, Ramana ChV, Sproer C, Takaichi S, Thiel V, Imhoff JF. Rhodobacter johrii sp. nov., an endospore-producing cryptic species isolated from semi-arid tropical soils. Int J Syst Evol Microbiol 2010; 60:2099-2107.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 60, part 9 of the IJSEM. Int J Syst Evol Microbiol 2010; 60:2695-2696.

Nomenclatural status: validly published under the ICNP

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

Correct name: Cereibacter johrii (Girija et al. 2010) Hördt et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    Cereibacter johrii (Girija et al. 2010) Hördt et al. 2020	homotypic synonym, validly published under the ICNP
    Luteovulum johrii (Girija et al. 2010) Suresh et al. 2020	homotypic synonym, validly published under the ICNP
    "Luteovulum johrii" (Girija et al. 2010) Suresh et al. 2019	homotypic synonym, not validly published

• Notes:
  • ❗ Rhodobacter johrii 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 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 9 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: Girija KR, Sasikala Ch, Ramana ChV, Sproer C, Takaichi S, Thiel V, Imhoff JF. Rhodobacter johrii sp. nov., an endospore-producing cryptic species isolated from semi-arid tropical soils. Int J Syst Evol Microbiol 2010; 60:2099-2107.

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Record number: 788753