Many organisms adapt to nutrient limitations by altering their lipid compositions; for instance, microalgae substitute phospholipids with betaine lipids during phosphate starvation, while higher plants resort to glycolipids.
This study compares the physicochemical properties of two types of lipids: dipalmitoylphosphatidylcholine (DPPC) and dipalmitoyl-diacylglyceryl-N,N,N-trimethylhomoserine (DP-DGTS), revealing that DP-DGTS bilayers are thicker and more rigid than DPPC bilayers and have unique electrostatic properties.
The findings help explain the diversity of betaine lipids in marine organisms and the absence of these lipids in seed plants, highlighting