Regulation of dormancy in barley by blue light and after-ripening: effects on abscisic acid and gibberellin metabolism.

@article{Gubler2008RegulationOD,
  title={Regulation of dormancy in barley by blue light and after-ripening: effects on abscisic acid and gibberellin metabolism.},
  author={Frank Gubler and Trijntje P Hughes and Peter Waterhouse and John Jacobsen},
  journal={Plant physiology},
  year={2008},
  volume={147 2},
  pages={886-96}
}
White light strongly promotes dormancy in freshly harvested cereal grains, whereas dark and after-ripening have the opposite effect. We have analyzed the interaction of light and after-ripening on abscisic acid (ABA) and gibberellin (GA) metabolism genes and dormancy in barley (Hordeum vulgare 'Betzes'). Analysis of gene expression in imbibed barley grains shows that different ABA metabolism genes are targeted by white light and after-ripening. Of the genes examined, white light promotes the… CONTINUE READING
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