Diphosphatidylglycerol (cardiolipin) with different fatty acid residues has been synthesised by condensation of 1,2-diacyl-sn-glycero-3-phosphoric acid (obtained, e.g., by the cabbage phospholipase D cleavage of 1,2-dioleyl-sn-glycero-3-phosphocholine or egg phosphatidylcholine) with
1. The distribution of phospholipase D (phosphatidylcholine phosphatido-hydrolase, EC 3.1.4.4) was examined in the tissues of a number of plants and seeds. 2. The highest activities were found in various swollen storage tissues of certain plants: cabbage, central stalk; cauliflower, flower; celery,