The importance of protein-protein interactions in biological systems is a rapidly emerging research theme and the revolution that is taking place in our understanding of plant genomics is enabling us to make exciting discoveries that have implications for both the fundamental and applied plant sciences. This book provides, at research and professional level, an overview of our current understanding of the significance of protein-protein interactions in plant biology. Each chapter considers the biochemical mechanism of the protein-protein interaction and its functional significance, and draws comparisons with similar interactions in animal cells.