A molecular framework for light and gibberellin control of cell elongation

  title={A molecular framework for light and gibberellin control of cell elongation},
  author={Miguel de Lucas and Jean-Michel Davi{\`e}re and Mariana Rodr{\'i}guez-Falc{\'o}n and Mariela A Pontin and Juan Manuel Iglesias-Pedraz and S{\'e}verine Lorrain and Christian Fankhauser and Miguel Angel Bl{\'a}zquez and Elena Titarenko and Salom{\'e} Prat},
Cell elongation during seedling development is antagonistically regulated by light and gibberellins (GAs). Light induces photomorphogenesis, leading to inhibition of hypocotyl growth, whereas GAs promote etiolated growth, characterized by increased hypocotyl elongation. The mechanism underlying this antagonistic interaction remains unclear. Here we report on the central role of the Arabidopsis thaliana nuclear transcription factor PIF4 (encoded by PHYTOCHROME INTERACTING FACTOR 4) in the… CONTINUE READING
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