Anion channels: master switches of stress responses.

  title={Anion channels: master switches of stress responses.},
  author={Melissa Roelfsema and Rainer Hedrich and Dietmar Geiger},
  journal={Trends in plant science},
  volume={17 4},
During stress, plant cells activate anion channels and trigger the release of anions across the plasma membrane. Recently, two new gene families have been identified that encode major groups of anion channels. The SLAC/SLAH channels are characterized by slow voltage-dependent activation (S-type), whereas ALMT genes encode rapid-activating channels (R-type). Both S- and R-type channels are stimulated in guard cells by the stress hormone ABA, which leads to stomatal closure. Besides their role in… CONTINUE READING
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