title: Nickel resistance determinants in bradyrhizobium strains from nodules of the endemic New Caledonia legume Serianthes calycina.
abstract: Bradyrhizobium strains, isolated in New Caledonia from nodules of the endemic legume Serianthes calycina growing in nickel-rich soils, were able to grow in the presence of 15 mM NiCl2. The genomes of these strains harbored two Ni resistance determinants, the cnr and nre operons. By constructing a cnrA mutant, we demonstrated that the cnr operon determines the high nickel resistance in Bradyrhizobium strains.
authors.affiliation: LSTM, Campus International de Baillarguet, TA A-82/J, 34398 Montpellier Cedex 5, France. clemence.chaintreuil@mpl.ird.fr
authors.forename: Clémence
authors.initials: C
authors.lastname: Chaintreuil
authors.forename: Frédéric
authors.initials: F
authors.lastname: Rigault
authors.forename: Lionel
authors.initials: L
authors.lastname: Moulin
authors.forename: Tanguy
authors.initials: T
authors.lastname: Jaffré
authors.forename: Joël
authors.initials: J
authors.lastname: Fardoux
authors.forename: Eric
authors.initials: E
authors.lastname: Giraud
authors.forename: Bernard
authors.initials: B
authors.lastname: Dreyfus
authors.forename: Xavier
authors.initials: X
authors.lastname: Bailly
mesh_terms: D000900:Anti-Bacterial Agents / Q000378:metabolism / Q000633:toxicity*; D001426:Bacterial Proteins / Q000235:genetics; D020369:Bradyrhizobium / Q000187:drug effects* / Q000235:genetics* / Q000302:isolation & purification; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D024881:Drug Resistance, Bacterial / Q000235:genetics*; D007887:Fabaceae / Q000382:microbiology; D008969:Molecular Sequence Data; D016296:Mutagenesis; D050505:Mutant Proteins / Q000235:genetics; D009510:New Caledonia; D009532:Nickel / Q000378:metabolism / Q000633:toxicity*; D009876:Operon; D017422:Sequence Analysis, DNA
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D004269:DNA, Bacterial; D050505:Mutant Proteins; C022838:nickel chloride; D009532:Nickel