Electrical potential differences in cells of barley roots and their relation to ion uptake.

@article{Pitman1971ElectricalPD,
  title={Electrical potential differences in cells of barley roots and their relation to ion uptake.},
  author={M. G. Pitman and Stuart M. Mertz and James S. Graves and Wayne S. Pierce and N. Higinbotham},
  journal={Plant physiology},
  year={1971},
  volume={47 1},
  pages={76-80}
}
Single cell electropotentials of barley (Hordeum vulgare L., cv. ;Compana') root cortex were measured at different external concentrations of KCl in the presence of Ca(2+). The roots were low in salt from seedlings grown on 0.5 mm aerated CaSO(4) solution. Thus, the conditions were equivalent to those used to define the dual mechanisms found with radioactive tracer-labeled ion uptake. In 0.5 mm CaSO(4) alone, there is an increase with time of cell negativity from about -65 millivolts 15 minutes… CONTINUE READING

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