Species ***Rhizobium* *mongolense***

Name: Rhizobium mongolense Van Berkum et al. 1998

Category: Species

Proposed as: sp. nov.

Etymology: mon.go.len’se. N.L. neut. adj. mongolense, pertaining to Inner Mongolia, the region where the bacteria were isolated [probably better: mongoliense]

Pronunciation (Latin), gender: r^hi-ZO-bi-um mon-go-LEN-se, neuter

Type strain: ATCC BAA-116; CIP 106112; HAMBI 2349; LMG 19141; USDA 1844

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: U89817 Analyse FASTA

Valid publication: van Berkum P, Beyene D, Bao G, Campbell TA, Eardly BD. Rhizobium mongolense sp. nov. is one of three rhizobial genotypes identified which nodulate and form nitrogen-fixing symbioses with Medicago ruthenica [(L.) Ledebour]. Int J Syst Bacteriol 1998; 48:13-22. 🇺🇸

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 48, part 1 of the IJSB. Int J Syst Bacteriol 1998; 48:629.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

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. 🇩🇪
  Notes:
  - 🧍 As of 2020-04-15 this emendation was not yet included in an IJSEM List of Changes in Taxonomic Opinion.

Notes:
- 🧬 The phylogenomic assignment score of this taxon is 0.06209 (N = 19).
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Germany has been imported on 2026-08-13. 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 11 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 pathogenicity of other species in the genus.
- 🧍 The small subunit rRNA gene sequences of the type strains for Rhizobium mongolense Van Berkum et al. 1998 and Rhizobium gallicum Amarger et al. 1997 are 99.2% similar. The species Rhizobium gallicum has been proposed after the manuscript of Van Berkum et al. 1998 was accepted for publication. Publication: van Berkum P, Beyene D, Bao G, Campbell TA, Eardly BD. Rhizobium mongolense sp. nov. is one of three rhizobial genotypes identified which nodulate and form nitrogen-fixing symbioses with Medicago ruthenica [(L.) Ledebour]. Int J Syst Bacteriol 1998; 48:13-22. 🇺🇸

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

Child taxa:

Name	Nomenclatural status	Taxonomic status
Rhizobium mongolense subsp. loessense (Wei et al. 2003) Hördt et al. 2020	validly published under the ICNP	correct name
Rhizobium mongolense subsp. mongolense (Van Berkum et al. 1998) Hördt et al. 2020	validly published under the ICNP	correct name

Parent taxon: Rhizobium Frank 1889 (Approved Lists 1980)

Assigned by: van Berkum P, Beyene D, Bao G, Campbell TA, Eardly BD. Rhizobium mongolense sp. nov. is one of three rhizobial genotypes identified which nodulate and form nitrogen-fixing symbioses with Medicago ruthenica [(L.) Ledebour]. Int J Syst Bacteriol 1998; 48:13-22. 🇺🇸

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Record number: 784766

This LPSN page was printed on 2026-09-11 11:09:17

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Species Rhizobium mongolense

Species ***Rhizobium* *mongolense***