Abstract
ABA affected K+ and solute transport between guard cells and epidermal cells as indicated by K+ staining and plasmolysis. ABA enhanced K+ (86Rb) uptake into epidermal cells. To find out whether the ABA enhanced accumulation of K+ (86Rb) in epidermal cells is active, uptake in the presence of exogenous ATP was studied. These studies hinted that K+ (86Rb) uptake by epidermal cells is a passive process, while its release is an active one. This was verified by applying iodoacetate, which interferes with energy supply. The epidermal cells thus seem to play a role in stomatal movement.
Original language | English |
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Pages (from-to) | 35-38 |
Number of pages | 4 |
Journal | Physiologia Plantarum |
Volume | 55 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 1982 |
ASJC Scopus subject areas
- Physiology
- Genetics
- Plant Science
- Cell Biology