Seeds of two Wrightia species, i.e. W. tinctoria and W. coccinea, synthesize triacylglycerols containing isoricinoleoyl (9-hydroxy-cw12-octadecenoyl, 9-OH-A18:l) moieties as the major lipid constituents. Seed maturation is accompanied by lipid accumulation and steep increase in the level of 9-OH-A 18:l in the total lipids, while relative proportions of palmitic (16:0), oleic (18:1), and linolei...