Polyamines interact with hydroxyl radicals in activating Ca(2+) and K(+) transport across the root epidermal plasma membranes.

@article{ZepedaJazo2011PolyaminesIW,
  title={Polyamines interact with hydroxyl radicals in activating Ca(2+) and K(+) transport across the root epidermal plasma membranes.},
  author={Isaac Zepeda-Jazo and Ana Velarde-Buend{\'i}a and Ren{\'e} Alberto Enr{\'i}quez-Figueroa and Jayakumar Bose and Sergey Shabala and Jes{\'u}s Mu{\~n}iz-Murgu{\'i}a and Igor Pottosin},
  journal={Plant physiology},
  year={2011},
  volume={157 4},
  pages={2167-80}
}
Reactive oxygen species (ROS) are integral components of the plant adaptive responses to environment. Importantly, ROS affect the intracellular Ca(2+) dynamics by activating a range of nonselective Ca(2+)-permeable channels in plasma membrane (PM). Using patch-clamp and noninvasive microelectrode ion flux measuring techniques, we have characterized ionic currents and net K(+) and Ca(2+) fluxes induced by hydroxyl radicals (OH(•)) in pea (Pisum sativum) roots. OH(•), but not hydrogen peroxide… CONTINUE READING

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