Repressor mutant forms of the Azospirillum brasilense NtrC protein.

نویسندگان

  • Luciano F Huergo
  • Marcelo C Assumpção
  • Emanuel M Souza
  • M Berenice R Steffens
  • M Geoffrey Yates
  • Leda S Chubatsu
  • Fábio O Pedrosa
چکیده

The Azospirillum brasilense mutant strains FP8 and FP9, after treatment with nitrosoguanidine, showed a null Nif phenotype and were unable to use nitrate as their sole nitrogen source. Sequencing of the ntrC genes revealed single nucleotide mutations in the NtrC nucleotide-binding site. The phenotypes of these strains are discussed in relation to their genotypes.

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عنوان ژورنال:
  • Applied and environmental microbiology

دوره 70 10  شماره 

صفحات  -

تاریخ انتشار 2004