Sodium uptake in Arabidopsis roots is regulated by cyclic nucleotides.

  title={Sodium uptake in Arabidopsis roots is regulated by cyclic nucleotides.},
  author={Frans J M Maathuis and Dale Sanders},
  journal={Plant physiology},
  volume={127 4},
Sodium uptake from the soil is a major cause of salinity toxicity in plants, yet little is known about the mechanisms that underlie Na(+) influx. We have characterized voltage independent channels (VICs) in Arabidopsis roots that are thought to contribute to Na(+) entry. VICs showed no selectivity among monovalent cations, and their gating was found to be voltage independent. However, VIC open probability showed sensitivity to cyclic nucleotides. The presence of micromolar concentrations of… CONTINUE READING
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Mechanisms of Na  uptake by plant cells

  • A Amtmann, D Sanders
  • Adv Bot Res
  • 1999
5 Excerpts

Root ion channels and salinity

  • SD Tyerman, IM Skerrett
  • Sci Hort
  • 1999
3 Excerpts

Tansley review no . 106 : cyclic nucleotides in higher plants : the enduring paradox

  • RP Newton, L Roef, E Witters, H VanOnckelen
  • New Phytol
  • 1999
2 Excerpts

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