Formation of major lipid families (phospholipids [A], triacylglycerols [B], and other neutral lipids [C] during growth of S. ambofaciens RP181110 (○), NSA205 (□), and NSA228 (▵). Results are means of two independent experiments with standard deviations of 10% for phospholipids, 20% for triacylglycerols, and 30% for other neutral lipids.