This volume is dedicated to Tsune Kosuge in recognition of his distinguished career as 8 plant biochemist and his many contributions to the field of phytochemistry. Those contributions began over thirty years ago during his doctoral research at Berkeley when Professor Kosuge was examining the metabolism of coumarin precursdrs in leaves of Melilotus alba. The several papers resulting from that doctoral thesis were among the first enzymatic studies ever to be performed in the field of natural (secondary) plant products. It should also be noted that during his doctoral research Professor Kosuge...