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Species Rhizobium tropici
Name: Rhizobium tropici Martínez-Romero et al. 1991
Etymology: tro’pi.ci. N.L. gen. masc. n. tropici, of the tropic (of Cancer); from L. masc. adj. tropicus, tropical
Pronunciation, gender: TRO-pi-ki, neuter
Type strain: ATCC 49672; CIAT 899; DSM 11418; HAMBI 1163; IFO 15247; JCM 21072; LMG 9503; NBRC 15247
See detailed strain information at
Conduct genome-based taxonomy at
16S rRNA gene:
D11344
Analyse
FASTA
Valid publication:
Martinez-Romero E, Segovia L, Mercante FM, Franco AA, Graham P, Pardo MA. Rhizobium tropici, a novel species nodulating Phaseolus vulgaris L. beans and Leucaena sp. trees. Int J Syst Bacteriol 1991; 41:417-426. 
IJSEM list:
Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 41, part 2 of the IJSB. Int J Syst Bacteriol 1991; 41:581.
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 0.02328 (N = 21).
- 😷 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 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 245 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.
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🧍 Rhizobium tropici Martínez-Romero et al. 1991, was the first description of a rhizobial species to include 16S rRNA gene-sequence analysis. At that time, in spite of evidence that supported the proposal of two species from the nodule isolates analyzed, such as differences in 16S rRNA gene sequences and low DNA-DNA hybridization values, only one novel species was accepted. However, two types, A and B, were recognized to account for these differences. In 2012, Ribeiro et al. propose to reclassify type A strains in a new species, Rhizobium leucaenae Ribeiro et al. 2012.
Publication:
Ribeiro RA, Rogel MA, Lopez-Lopez A, Ormeno-Orrillo E, Barcellos FG, Martinez J, Thompson FL, Martinez-Romero E, Hungria M. Reclassification of Rhizobium tropici type A strains as Rhizobium leucaenae sp. nov. Int J Syst Evol Microbiol 2012; 62:1179-1184.
Parent taxon: Rhizobium Frank 1889 (Approved Lists 1980)
Assigned by:
Martinez-Romero E, Segovia L, Mercante FM, Franco AA, Graham P, Pardo MA. Rhizobium tropici, a novel species nodulating Phaseolus vulgaris L. beans and Leucaena sp. trees. Int J Syst Bacteriol 1991; 41:417-426.
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Record number: 780381
This LPSN page was printed on 2025-11-15 00:50:13