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| Figure 5: Dose-dependent binding of 3H-ouabain to Helix pomatia cell membrane in PS with different tonicity. Binding was measured after 2 h of exposure to 3H-ouabain-containing PS. Cell exposed to hypotonic (o) (0 mM sucrose, p = 0,5); in isotonic (filled diamond) (63 mM sucrose; p=1); and hypertonic (filled circle) (189 mM sucrose; p = 2) PS. The curves were drawn by eye. Both axes are logarithmic [21]. |
