This manual is principally concerned with the relatively complex small molecules produced by plants, which are important as drugs, fine chemicals, fragrances, flavours and biologically-active dietary constituents. In a series of thematic essays, it covers the key aspects of their role in plant ecology, their metabolism in the plant, their discovery, characterization and use and their significance in the diet. Biotechnology, including prospects for the genetic engineering of metabolic pathways, for biotransformations and also for the production of biologically-active proteins, is the focus of...