The Protein Phosphatase 7 Regulates Phytochrome Signaling in Arabidopsis

  title={The Protein Phosphatase 7 Regulates Phytochrome Signaling in Arabidopsis},
  author={Thierry Genoud and Marcela Beatriz Trevi{\~n}o Santa Cruz and Tea Kulisi{\'c} and Francesca Sparla and Christian Fankhauser and J. -P. M{\'e}traux},
  journal={PLoS ONE},
  pages={257 - 271}
The psi2 mutant of Arabidopsis displays amplification of the responses controlled by the red/far red light photoreceptors phytochrome A (phyA) and phytochrome B (phyB) but no apparent defect in blue light perception. We found that loss-of-function alleles of the protein phosphatase 7 (AtPP7) are responsible for the light hypersensitivity in psi2 demonstrating that AtPP7 controls the levels of phytochrome signaling. Plants expressing reduced levels of AtPP7 mRNA display reduced blue-light… CONTINUE READING


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Calmodulinbinding protein phosphatase PP7 is involved in thermotolerance in Arabidopsis

  • Liu H-T, Li G-L, H Chang, Sun D-Y, Zhou R-G
  • Plant Cell and Env
  • 2006
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