Fig. 3From: Lipid bilayer properties potentially contributed to the evolutionary disappearance of betaine lipids in seed plantsa and b Pressure-distance (dw) and (c) and (d) pressure-bilayer thickness (db) curves of DPPC (blue) and DP-DGTS (orange), measured at 50 °C. The gel phase is shown on graphs A and C, and the fluid phase on graphs B and DBack to article page