Rhizobium etli CFN 42


Alias: Rhizobium etli CFN42, Rhizobium etli str. CFN 42, Rhizobium etli strain CFN 42

Top Publications

  1. Miranda Rios J, Morera C, Taboada H, Davalos A, Encarnación S, Mora J, et al. Expression of thiamin biosynthetic genes (thiCOGE) and production of symbiotic terminal oxidase cbb3 in Rhizobium etli. J Bacteriol. 1997;179:6887-93 pubmed
    ..This is consistent with the proposition that a purine-related metabolite, 5-aminoimidazole-4-carboxamide ribonucleotide, is a negative effector of the production of the symbiotic terminal oxidase cbb3 in R. etli. ..
  2. Jahn O, Davila G, Romero D, Noel K. BacS: an abundant bacteroid protein in Rhizobium etli whose expression ex planta requires nifA. Mol Plant Microbe Interact. 2003;16:65-73 pubmed
    b>Rhizobium etli CFN42 bacteroids from bean nodules possessed an abundant 16-kDa protein (BacS) that was found in the membrane pellet after cell disruption. This protein was not detected in bacteria cultured in tryptone-yeast extract...
  3. Lopez O, Morera C, Miranda Rios J, Girard L, Romero D, Soberon M. Regulation of gene expression in response to oxygen in Rhizobium etli: role of FnrN in fixNOQP expression and in symbiotic nitrogen fixation. J Bacteriol. 2001;183:6999-7006 pubmed
    Previously, we reported finding duplicated fixNOQP operons in Rhizobium etli CFN42. One of these duplicated operons is located in the symbiotic plasmid (fixNOQPd), while the other is located in a cryptic plasmid (fixNOQPf)...
  4. Duran S, Sánchez Linares L, Huerta Saquero A, Du Pont G, Huerta Zepeda A, Calderon J. Identification of two glutaminases in Rhizobium etli. Biochem Genet. 1996;34:453-65 pubmed
    ..By complementation of the Rhizobium etli LM16 mutant that lacks glutaminase A, we have cloned the gene that codes for this enzyme. ..
  5. Tate R, Riccio A, Caputo E, Iaccarino M, Patriarca E. The Rhizobium etli metZ gene is essential for methionine biosynthesis and nodulation of Phaseolus vulgaris. Mol Plant Microbe Interact. 1999;12:24-34 pubmed
    ..These data and our previous results support the notion that cysteine or glutathione, but not methionine, is supplied by the root cells to bacteria growing inside the plant. ..
  6. Tabche M, Garcia E, Miranda J, Escamilla J, Soberon M. Rhizobium etli cycHJKL gene locus involved in c-type cytochrome biogenesis: sequence analysis and characterization of two cycH mutants. Gene. 1998;208:215-9 pubmed
    ..Our data suggest that CycH may not be essential for the infection process, but is necessary for nitrogen fixation. ..
  7. Zhao S, Sakai A, Zhang X, Vetting M, Kumar R, Hillerich B, et al. Prediction and characterization of enzymatic activities guided by sequence similarity and genome neighborhood networks. elife. 2014;3: pubmed publisher
    ..The synergistic use of sequence similarity networks3 and GNNs will facilitate the discovery of the components of novel, uncharacterized metabolic pathways in sequenced genomes. ..
  8. Tate R, Riccio A, Caputo E, Cermola M, Favre R, Patriarca E. The Rhizobium etli trpB gene is essential for an effective symbiotic interaction with Phaseolus vulgaris. Mol Plant Microbe Interact. 1999;12:926-33 pubmed
    ..These data and histological observations indicate that the lack of tryptophan biosynthesis affects the symbiotic behavior of R. etli. ..
  9. Ferraioli S, Tatè R, Cermola M, Favre R, Iaccarino M, Patriarca E. Auxotrophic mutant strains of Rhizobium etli reveal new nodule development phenotypes. Mol Plant Microbe Interact. 2002;15:501-10 pubmed

More Information


  1. Ortuño Olea L, Durán Vargas S. The L-asparagine operon of Rhizobium etli contains a gene encoding an atypical asparaginase. FEMS Microbiol Lett. 2000;189:177-82 pubmed
    ..The product of the R. etli ansA gene showed no sequence similarity with previously reported microbial asparaginases, this protein seems to be an atypical asparaginase which evolved apart from bacterial and yeast asparaginases. ..
  2. Liang C, Zhu J, Hu R, Ramelot T, Kennedy M, Liu M, et al. Solution NMR structure of RHE_CH02687 from Rhizobium etli: A novel flavonoid-binding protein. Proteins. 2017;85:951-956 pubmed publisher
    ..etli and plants. In addition, our study showed no evidence for a direct interaction between RHE_CH02687 and HtpG, the R. etli homolog of Hsp90. Proteins 2017; 85:951-956. © 2016 Wiley Periodicals, Inc. ..
  3. Zheng H, Mao Y, Zhu Q, Ling J, Zhang N, Naseer N, et al. The quorum sensing regulator CinR hierarchically regulates two other quorum sensing pathways in ligand-dependent and -independent fashions in Rhizobium etli. J Bacteriol. 2015;197:1573-81 pubmed publisher
    ..There are at least three LuxRI-type regulatory systems in Rhizobium etli CFN42: CinRI, RaiRI, and TraRI...
  4. Cubillas C, Vinuesa P, Tabche M, Dávalos A, Vazquez A, Hernandez Lucas I, et al. The cation diffusion facilitator protein EmfA of Rhizobium etli belongs to a novel subfamily of Mn(2+)/Fe(2+) transporters conserved in ?-proteobacteria. Metallomics. 2014;6:1808-15 pubmed publisher
    ..These results indicate that the RHE_CH03072 gene, now designated as emfA, encodes for a bacterial Mn(2+)/Fe(2+) resistance CDF protein, having orthologs in more than 60 ?-proteobacterial species. ..
  5. Reyes1 J, Tabche1 M, Morera C, Girard M, Romero D, Krol E, et al. Expression pattern of Rhizobium etli ccmIEFH genes involved in c-type cytochrome maturation. Gene. 2000;250:149-57 pubmed
    ..The finding of two independent promoters in this gene locus could suggest that the step catalyzed by CcmFH could be a rate-limiting step for c-type cytochrome assembly under certain culture conditions. ..
  6. Calderon J, Huerta Saquero A, Du Pont G, Duran S. Sequence and molecular analysis of the Rhizobium etli glsA gene, encoding a thermolabile glutaminase. Biochim Biophys Acta. 1999;1444:451-6 pubmed
    ..The glsA gene represents the first glutaminase gene cloned and sequenced in prokaryotes. ..
  7. Martinez Salazar J, Romero D. Role of the ruvB gene in homologous and homeologous recombination in Rhizobium etli. Gene. 2000;243:125-31 pubmed
    ..Although the ruvA and ruvB genes are contiguous in R. etli, complementation studies suggest that they are expressed independently...
  8. Tun Garrido C, Bustos P, Gonz lez V, Brom S. Conjugative transfer of p42a from rhizobium etli CFN42, which is required for mobilization of the symbiotic plasmid, is regulated by quorum sensing. J Bacteriol. 2003;185:1681-92 pubmed
    b>Rhizobium etli CFN42 contains six plasmids. Only one of them, p42a, is self-conjugative at high frequency. This plasmid is strictly required for mobilization of the symbiotic plasmid (pSym)...
  9. Encarnaci n S, D valos A, Reyes P rez A, Mora Y, Garc a de los Santos A, Brom S, et al. Only one catalase, katG, is detectable in Rhizobium etli, and is encoded along with the regulator OxyR on a plasmid replicon. Microbiology. 2003;149:1165-76 pubmed publisher
    ..Additionally, the katG promoter region contained sequence motifs characteristic of OxyR binding sites, suggesting a possible regulatory mechanism for katG expression...
  10. Gonz lez V, Bustos P, Ram rez Romero M, Medrano Soto A, Salgado H, Hern ndez Gonz lez I, et al. The mosaic structure of the symbiotic plasmid of Rhizobium etli CFN42 and its relation to other symbiotic genome compartments. Genome Biol. 2003;4:R36 pubmed publisher
    ..We report the complete sequence of the symbiotic plasmid of Rhizobium etli CFN42, a microsymbiont of beans, and a comparison with other SGC sequences available. ..
  11. Guill n Navarro K, Ara za G, Garc a de los Santos A, Mora Y, Dunn M. The Rhizobium etli bioMNY operon is involved in biotin transport. FEMS Microbiol Lett. 2005;250:209-19 pubmed publisher
    ..We show that the bioMNY operon is transcriptionally repressed by biotin. An analysis of the competitiveness of the wild-type strain versus the bioM mutant showed that the mutant had a diminished capacity to form nodules on bean plants...
  12. Ram rez Romero M, Masulis I, Cevallos M, Gonz lez V, D vila G. The Rhizobium etli sigma70 (SigA) factor recognizes a lax consensus promoter. Nucleic Acids Res. 2006;34:1470-80 pubmed publisher
  13. Corvera A, Prom D, Prom J, Mart nez Romero E, Romero D. The nolL gene from Rhizobium etli determines nodulation efficiency by mediating the acetylation of the fucosyl residue in the nodulation factor. Mol Plant Microbe Interact. 1999;12:236-46 pubmed publisher
    ..We also performed plant assays that indicate that acetylation of the fucose conditions efficient nodulation by R. etli of some Phaseolus vulgaris cultivars, as well as of an alternate host (Vigna umbellata)...
  14. Bittinger M, Milner J, Saville B, Handelsman J. rosR, a determinant of nodulation competitiveness in Rhizobium etli. Mol Plant Microbe Interact. 1997;10:180-6 pubmed publisher
    ..etli. Moreover, we established that a single gene affects nodulation competitiveness, competitive growth in the rhizosphere, and cell surface hydrophobicity...
  15. Cevallos M, Encarnaci n S, Leija A, Mora Y, Mora J. Genetic and physiological characterization of a Rhizobium etli mutant strain unable to synthesize poly-beta-hydroxybutyrate. J Bacteriol. 1996;178:1646-54 pubmed
    ..In symbiosis with Phaseolus vulgaris, the PHB-negative mutant induced nodules that prolonged the capacity to fix nitrogen...
  16. V zquez M, D valos A, de las Pe as A, S nchez F, Quinto C. Novel organization of the common nodulation genes in Rhizobium leguminosarum bv. phaseoli strains. J Bacteriol. 1991;173:1250-8 pubmed
    ..leguminosarum bv. phaseoli type I strains. Despite the separation, the coordination of the expression of these genes seems not to be altered...
  17. Gonz lez Pasayo R, Mart nez Romero E. Multiresistance genes of Rhizobium etli CFN42. Mol Plant Microbe Interact. 2000;13:572-7 pubmed publisher
    ..Multidrug resistance genes emrAB from Escherichia coli complemented an rmrA mutant from R. etli for resistance to high concentrations of naringenin...
  18. Ingram B, Sohlenkamp C, Geiger O, Raetz C. Altered lipid A structures and polymyxin hypersensitivity of Rhizobium etli mutants lacking the LpxE and LpxF phosphatases. Biochim Biophys Acta. 2010;1801:593-604 pubmed publisher
    ..Therefore, the dephosphorylation of lipid A molecules in R. etli is not required for nodulation but may instead play a role in protecting the bacteria from cationic antimicrobial peptides or other immune responses of plants...