Mechanism of Cd and Cu action on the tonoplast proton pumps in cucumber roots.

@article{Kabaa2013MechanismOC,
  title={Mechanism of Cd and Cu action on the tonoplast proton pumps in cucumber roots.},
  author={Katarzyna Kabała and Małgorzata Janicka-Russak and Agnieszka Anklewicz},
  journal={Physiologia plantarum},
  year={2013},
  volume={147 2},
  pages={207-17}
}
The effect of Cd and Cu on the tonoplast proton pumps, V-ATPase (EC 3.6.3.14) and V-PPase (EC 3.6.1.1) was investigated in cucumber roots subjected to 10 µM metals for 3 and 6 days. Both hydrolytic and transporting activities of V-ATPase as well as V-PPase increased under copper stress. In contrast, all activities examined were inhibited after the exposure of plants to cadmium. Cd and Cu changed the efficiency of coupling between proton transport and ATP hydrolysis whereas H(+) /PP(i… CONTINUE READING