Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling.

@article{Hornitschek2012PhytochromeIF,
  title={Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling.},
  author={Patricia Hornitschek and Markus V Kohnen and S{\'e}verine Lorrain and Jacques Rougemont and Karin Ljung and Irene L{\'o}pez-Vidriero and Jos{\'e} Manuel Franco-Zorrilla and Roberto Solano and Martine Trevisan and Sylvain Pradervand and Ioannis Xenarios and Christian Fankhauser},
  journal={The Plant journal : for cell and molecular biology},
  year={2012},
  volume={71 5},
  pages={699-711}
}
Plant growth is strongly influenced by the presence of neighbors that compete for light resources. In response to vegetational shading shade-intolerant plants such as Arabidopsis display a suite of developmental responses known as the shade-avoidance syndrome (SAS). The phytochrome B (phyB) photoreceptor is the major light sensor to mediate this adaptive response. Control of the SAS occurs in part with phyB, which controls protein abundance of phytochrome-interacting factors 4 and 5 (PIF4 and… CONTINUE READING
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