Bradyoxetin, a unique chemical signal involved in symbiotic gene regulation.

  title={Bradyoxetin, a unique chemical signal involved in symbiotic gene regulation.},
  author={John Loh and Russell W Carlson and William S. York and Gary Stacey},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={99 22},
Bradyrhizobium japonicum is a symbiotic bacterium that nodulates soybean. Critical for the infection and establishment of this symbiosis are the bacterial nodulation genes (nod, nol, noe), which are induced in the presence of plant produced isoflavones. Transcription of the nodulation genes is also controlled in a population density-dependent fashion. Expression of the nod genes is maximal at low population densities, and decreases significantly at higher culture densities. Population density… CONTINUE READING

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