The main pathway metabolizing acyl-CoAs in sunflower developing seeds is the Kennedy pathway that is located in the ER [55].
This pathway consists of successive acylations of glycerol 3phosphate (G3P) to yield phosphatidic acid (PA), which is dephosphorylated to produce a diacylglycerol (DAG). The glycerolipids PA
and DAG are also the main precursors of the most prevalent
phospholipid species like PC, phosphatidylethanolamine and phosphatidylinositol. The DAGs are also the precursors of TAGs, through
a final acylation reaction catalyzed by the enzyme diacylglycerol:
acyl-CoA acyltransferase (DGAT), as well as the glycosylglycerides.