The sigma factor sigma s affects antibiotic production and biological control activity of Pseudomonas fluorescens Pf-5.

@article{Sarniguet1995TheSF,
  title={The sigma factor sigma s affects antibiotic production and biological control activity of Pseudomonas fluorescens Pf-5.},
  author={Alain Sarniguet and Jan Kraus and Marcella D. Henkels and Andrea Muehlchen and Joyce E Loper},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1995},
  volume={92 26},
  pages={
          12255-9
        }
}
Pseudomonas fluorescens Pf-5, a rhizosphere-inhabiting bacterium that suppresses several soilborne pathogens of plants, produces the antibiotics pyrrolnitrin, pyoluteorin, and 2,4-diacetylphloroglucinol. A gene necessary for pyrrolnitrin production by Pf-5 was identified as rpoS, which encodes the stationary-phase sigma factor sigma s. Several pleiotropic effects of an rpoS mutation in Escherichia coli also were observed in an RpoS- mutant of Pf-5. These included sensitivities of stationary… CONTINUE READING
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