chapter 1 Occurrence and Properties of Plant Pathogenesis-Related Proteins -- chapter 2 PR-1: A Group of Plant Proteins Induced Upon Pathogen Infection -- chapter 3 Functions and Regulation of Plant -1,3-Glucanases (PR-2) -- chapter 4 Plant Chitinases (PR-3, PR-4, PR-8, PR-11) -- chapter 5 The PR-5 Family: Thaumatin-Like Proteins -- chapter 6 The PR-6 Family: Proteinase Inhibitors in Plant-Microbe and Plant-Insect Interactions -- chapter 7 The Response of Plant Cell Wall HydroxyProfiline-Rich Glycoproteins to Microbial Pathogens and Their Elicitors -- chapter 8 Induction of Peroxidase During Defense Against Pathogens -- chapter 9 Signal Transduction and Pathogen-Induced PR Gene Expression -- chapter 10 The Role of Thionins in the Resistance of Plants -- chapter 11 Ribosome-Inactivating Proteins: Structure, Function, and Engineering -- chapter 12 Plant Defensins -- chapter 13 Expression and Function of PR-Protein Genes in Transgenic Plants.