Name: Ensifer mexicanus Lloret et al. 2011

Category: Species

Proposed as: sp. nov.

Etymology: me.xi.ca’nus. N.L. masc. adj. mexicanus, of or belonging to Mexico, where the strains were isolated

Pronunciation (Latin), gender: EN-si-fer me-xi-KA-nus, masculine

Type strain: ATCC BAA-1312; CFN ER1001; CIP 109033; DSM 18446; HAMBI 2910; ITTG R7; LMG 23932

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: DQ411930 Analyse FASTA

Effective publication: Lloret L, Ormeno-Orrillo E, Rincon R, Martinez-Romero J, Rogel-Hernandez MA, Martinez-Romero E. Ensifer mexicanus sp. nov. a new species nodulating Acacia angustissima (Mill.) Kuntze in Mexico. Syst Appl Microbiol 2007; 30:280-290. 🇲🇽

IJSEM list: Euzeby JP. Validation list no. 138. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2011; 61:475-476.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Sinorhizobium mexicanum (Lloret et al. 2011) Kuzmanović et al. 2022	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 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 2 times in PubMed until 2026-06-11.

Parent taxon: Ensifer Casida 1982

Assigned by: Lloret L, Ormeno-Orrillo E, Rincon R, Martinez-Romero J, Rogel-Hernandez MA, Martinez-Romero E. Ensifer mexicanus sp. nov. a new species nodulating Acacia angustissima (Mill.) Kuntze in Mexico. Syst Appl Microbiol 2007; 30:280-290. 🇲🇽

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Record number: 780940