Manipulation of the apoplastic pH of intact plants mimics stomatal and growth responses to water availability and microclimatic variation.

@article{Wilkinson2008ManipulationOT,
  title={Manipulation of the apoplastic pH of intact plants mimics stomatal and growth responses to water availability and microclimatic variation.},
  author={Sally Wilkinson and William J. Davies},
  journal={Journal of experimental botany},
  year={2008},
  volume={59 3},
  pages={619-31}
}
The apoplastic pH of intact Forsythiaxintermedia (cv. Lynwood) and tomato (Solanum lycopersicum) plants has been manipulated using buffered foliar sprays, and thereby stomatal conductance (g(s)), leaf growth rate, and plant water loss have been controlled. The more alkaline the pH of the foliar spray, the lower the g(s) and/or leaf growth rate subsequently measured. The most alkaline pH that was applied corresponds to that measured in sap extracted from shoots of tomato and Forsythia plants… CONTINUE READING