Plasmalemma redox activity and h extrusion in roots of fe-deficient cucumber plants.

  title={Plasmalemma redox activity and h extrusion in roots of fe-deficient cucumber plants.},
  author={Esteban Alc{\'a}ntara and Miguel de la Guardia and F{\'e}lix Romera},
  journal={Plant physiology},
  volume={96 4},
Cucumber plants (Cucumis sativus L.) with incipient Fe deficiency showed increased root capacity to reduce chelated Fe(3+) compared to Fe-sufficient plants. When Fe-ethylenediaminete-traacetate was added to the root medium of the Fe-deficient plants, the reductase activity was associated with acidification of the medium and an increase in the net apparent K(+) efflux. In the presence of the H(+)-ATPase inhibitor N,N'-dicyclohexylcarbodiimide the net apparent H(+) efflux was completely… CONTINUE READING


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