Nickel resistance determinants in bradyrhizobium strains from nodules of the endemic New Caledonia legume Serianthes calycina.

نویسندگان

  • Clémence Chaintreuil
  • Frédéric Rigault
  • Lionel Moulin
  • Tanguy Jaffré
  • Joël Fardoux
  • Eric Giraud
  • Bernard Dreyfus
  • Xavier Bailly
چکیده

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.

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عنوان ژورنال:
  • Applied and environmental microbiology

دوره 73 24  شماره 

صفحات  -

تاریخ انتشار 2007