Short-term regulation of nitrogenase activity by NH4+ in Rhodobacter capsulatus: multiple in vivo nitrogenase responses to NH4+ addition.

@article{Yakunin1998ShorttermRO,
  title={Short-term regulation of nitrogenase activity by NH4+ in Rhodobacter capsulatus: multiple in vivo nitrogenase responses to NH4+ addition.},
  author={Alexander F Yakunin and Patrick Clark Hallenbeck},
  journal={Journal of bacteriology},
  year={1998},
  volume={180 23},
  pages={6392-5}
}
The photosynthetic bacterium Rhodobacter capsulatus has been shown to carry out nitrogenase "switch-off," a rapid, reversible inhibition of in vivo activity. Here, we demonstrate that highly nitrogen-limited cultures of both the wild-type strain and a draT draG mutant are capable of nitrogenase switch-off while moderately nitrogen-limited cultures show instead a "magnitude" response, with a decrease in in vivo nitrogenase activity that is proportional to the amount of added NH4+. 

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Effect of ammonium on nitrogenase activity in the heterocystous cyanobacterium Anabaena variabilis

  • A. F. Yakunin, O. Y. Troshina, M. Jha, I. N. Gogotov
  • Mikrobiologiya
  • 1992
1 Excerpt

ADPribosylation of dinitrogenase reductase in Rhodobacter capsulatus

  • Y. Jouanneau, C. Roby, C. M. Meyer, P. M. Vignais
  • Biochemistry
  • 1989
1 Excerpt

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