Changes of pH of solutions during perfusion through stem segments: further evidence for hydrogel regulation of xylem hydraulic properties?

@article{Gasc2008ChangesOP,
  title={Changes of pH of solutions during perfusion through stem segments: further evidence for hydrogel regulation of xylem hydraulic properties?},
  author={Antonio M Gasc{\'o} and Emmanuelle Gortan and Sebastiano Salleo and Andrea Nardini},
  journal={Biologia Plantarum},
  year={2008},
  volume={52},
  pages={502-506}
}
Changes in hydraulic conductivity (Kh) and pH were measured in stem segments of laurel (Laurus nobilis L.) during perfusion with iso-osmotic solutions of KCl, NaCl and sucrose. Sucrose had no effect on Kh while 100 mM NaCl or KCl induced up to 22 and 35 % increase of Kh with respect to deionized water, respectively. Increases in Kh were accompanied by a sharp drop in pH from 6.0 (inlet solution) to 5.0 (outlet solution). The same effect was observed with both KCl and NaCl solutions but not in… CONTINUE READING

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