Phytochromes, cryptochromes, phototropin: photoreceptor interactions in plants.

  title={Phytochromes, cryptochromes, phototropin: photoreceptor interactions in plants.},
  author={Jorge Jos{\'e} Casal},
  journal={Photochemistry and photobiology},
  volume={71 1},
In higher plants, natural radiation simultaneously activates more than one photoreceptor. Five phytochromes (phyA through phyD), two cryptochromes (cry1, cry2) and phototropin have been identified in the model species Arabidopsis thaliana. There is light-dependent epistasis among certain photoreceptor genes because the action of one pigment can be affected by the activity of others. Under red light, phyA and phyB are antagonistic, but under far-red light, followed by brief red light, phyA and… CONTINUE READING


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