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Species Rhizobium esperanzae
Name: Rhizobium esperanzae Cordeiro et al. 2017
Etymology: es.pe.ran’zae. N.L. gen. fem. n. esperanzae, of Esperanza, named after Dr Esperanza Martínez-Romero, scientist at the Centre of Genomic Sciences, Cuernavaca, Mexico, who dedicates her life to studies of the diversity of rhizobia, with an emphasis on symbionts of common bean
Pronunciation (Latin), gender: … es-pe-RAN-za͡e, neuter
Type strain: 668; CNPSo 668; LMG 30030; U 10001; UMR 1320; Z87-8
See detailed strain information at
Conduct genome-based taxonomy at
16S rRNA gene:
KC293513
Analyse
FASTA
Valid publication:
Cordeiro AB, Ribeiro RA, Helene LCF, Hungria M. Rhizobium esperanzae sp. nov., a N2-fixing root symbiont of Phaseolus vulgaris from Mexican soils. Int J Syst Evol Microbiol 2017; 67:3937-3945. 
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IJSEM list:
Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 67, part 10 of the IJSEM. Int J Syst Evol Microbiol 2018; 68:3-6.
Nomenclatural status: validly published under the ICNP
Taxonomic status: correct name (and explicitly recommended for medical use)
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Emendations:
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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. 🇩🇪
Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.
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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.
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Notes:
- 🧬 The phylogenomic assignment score of this taxon is 0.14193 (N = 14).
- 😷 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 2 times in PubMed until 2025-06-04.
- 🙆 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.
Parent taxon: Rhizobium Frank 1889 (Approved Lists 1980)
Assigned by:
Cordeiro AB, Ribeiro RA, Helene LCF, Hungria M. Rhizobium esperanzae sp. nov., a N2-fixing root symbiont of Phaseolus vulgaris from Mexican soils. Int J Syst Evol Microbiol 2017; 67:3937-3945. 🇧🇷
Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/rhizobium-esperanzaeLink copied to clipboard
Record number: 796110
This LPSN page was printed on 2026-03-16 08:11:05