Protein phosphorylation activates the guard cell Ca2+ channel and is a prerequisite for gating by abscisic acid.

@article{Khler2002ProteinPA,
  title={Protein phosphorylation activates the guard cell Ca2+ channel and is a prerequisite for gating by abscisic acid.},
  author={B{\'a}rbara P{\'e}rez K{\"o}hler and Michael R Blatt},
  journal={The Plant journal : for cell and molecular biology},
  year={2002},
  volume={32 2},
  pages={
          185-94
        }
}
Protein phosphorylation and cytosolic-free [Ca2+] ([Ca2+]i) contribute to signalling cascades evoked by the water-stress hormone abscisic acid (ABA) that lead to stomatal closure in higher-plant leaves. ABA activates an inward-rectifying Ca2+ channel at the plasma membrane of stomatal guard cells, promoting Ca2+ entry by shifting the voltage-sensitivity of the channels. Because many of these effects could be mediated by kinase/phosphatase action at the membrane, we examined a role for protein… CONTINUE READING

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References

Publications referenced by this paper.
SHOWING 1-10 OF 55 REFERENCES

Ca2+ channels at the plasma membrane of stomatal guard cells are activated by hyperpolarization and abscisic acid.

  • Proceedings of the National Academy of Sciences of the United States of America
  • 2000
VIEW 24 EXCERPTS
HIGHLY INFLUENTIAL

Membrane voltage initiates Ca2+ waves and potentiates Ca2+ increases with abscisic acid in stomatal guard cells.

  • Proceedings of the National Academy of Sciences of the United States of America
  • 1998
VIEW 17 EXCERPTS
HIGHLY INFLUENTIAL

AKAPs: from structure to function.

  • Trends in cell biology
  • 1999
VIEW 4 EXCERPTS
HIGHLY INFLUENTIAL