Name: Pararhizobium gei (Shi et al. 2016) Zhang et al. 2024

Category: Species

Proposed as: comb. nov.

Basonym: Rhizobium gei Shi et al. 2016

Etymology: ge’i. N.L. gen. neut. n. gei, of the plant genus Geum, refering to the host of origin for the bacterium

Pronunciation, gender: GE-i, neuter

Type strain: CCTCC AB 2013015; KCTC 32301; LMG 27603; ZFJT-2

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KF551166 Analyse FASTA

Effective publication: Zhang YF, Dai YN, Pu JF, Yang XF, Liu HH, Pan H, Tian Y. Pararhizobium qamdonense sp. nov., Isolated from an Alpine Soil in Tibet and the Reclassification of Rhizobium gei Shi et al. 2016 as Pararhizobium gei comb. nov. Curr Microbiol 2023; 81:44.

IJSEM list: Oren A, Göker M. Validation list no. 217. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2024; 74:6275.

Nomenclatural status: validly published under the ICNP

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

Correct name: Rhizobium gei Shi et al. 2016

• Synonyms:

  • Name	Kind
    Rhizobium gei Shi et al. 2016	homotypic synonym, validly published under the ICNP
    "Pararhizobium gei" (Shi et al. 2016) De Lajudie and Young 2017	homotypic synonym, not validly published

• Notes:
  • ❗ Pararhizobium gei 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 Pararhizobium.
  • 🎓 Name mentioned 1 time in PubMed until 2025-06-17.
  • 🙅 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.

Parent taxon: Pararhizobium Mousavi et al. 2016

Assigned by: Zhang YF, Dai YN, Pu JF, Yang XF, Liu HH, Pan H, Tian Y. Pararhizobium qamdonense sp. nov., Isolated from an Alpine Soil in Tibet and the Reclassification of Rhizobium gei Shi et al. 2016 as Pararhizobium gei comb. nov. Curr Microbiol 2023; 81:44.

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Record number: 42042