Name: Sinorhizobium medicae Rome et al. 1996

Category: Species

Proposed as: sp. nov.

Etymology: me.di.cae. L. gen. fem. n. medicae, of/from lucern (plant belonging to the genus Medicago)

Gender: neuter

Type strain: 11-3 21a; A 321; HAMBI 2306; ICMP 13798; LMG 19920; NBRC 100384; USDA 1037

Conduct genome-based taxonomy at

16S rRNA gene: AB681159 Analyse FASTA

Valid publication: Rome S, Fernandez MP, Brunel B, Normand P, Cleyet-Marel JC. Sinorhizobium medicae sp. nov., isolated from annual Medicago spp. Int J Syst Bacteriol 1996; 46:972-980.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 46, part 4 of the IJSB. Int J Syst Bacteriol 1997; 47:243-244.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Ensifer medicae (Rome et al. 1996) Young 2003

Risk group: 1

• Synonyms:

  • Name	Kind
    Ensifer medicae (Rome et al. 1996) Young 2003	homotypic synonym, validly published under the ICNP

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • ❗ Sinorhizobium medicae 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 Sinorhizobium.
  • 😷 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 73 times in PubMed until 2025-06-04.

Parent taxon: Sinorhizobium Chen et al. 1988

Assigned by: Rome S, Fernandez MP, Brunel B, Normand P, Cleyet-Marel JC. Sinorhizobium medicae sp. nov., isolated from annual Medicago spp. Int J Syst Bacteriol 1996; 46:972-980.

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Record number: 784909