Aquaporin regulation under salt and osmotic stress in the halophyte mesembryanthemum crystallinum L.

It is evident that plant aquaporins should play a dynamic role in maintaining cellular water homeostasis under conditions that necessitate modifications in water flux, including drought- and salt-stress. Changes in water uptake and allocation would be required to balance alterations in cellular osmotic potential and therefore, both plasma membrane and vacuolar membrane (tonoplast) aquaporin activity and/or expression must be tightly regulated