Book excerpt: This volume, contributed to by a group of 46 research scientists and engineers, focuses on the integration of two aspects of plant biotechnology - the basic plant science and applied bioprocess engineering. Included in this book are 17 chapters, each dealing with specific topics of current interest with three coherent themes of: plant gene expression, regulation and manipulation; plant cell physiology and metabolism and their regulation; and bioprocess engineering and bioreactor performance of plant cell cultures. All of these topics are integrated into a main theme of "enabling plant biotechnology" relevant to the production of secondary metabolites. This book will be of great value to all plant cell biologists and molecular geneticists, and all those interested in the integration of plant science and bioprocess engineering for development of enabling technology relevant to the production of plant secondary metabolites.