Foreword, Preface, Chapter 1. Molecular Recognition Processes Between Plant and Bacterial Pathogens, Introduction, Physical Contact of Plant Cells is Necessary for Bacterial Recognition, Molecules Responsible for Physical Contact, Many Bacterial Pathogens Induce Necrosis on Hosts and Nonhosts, Bacterial Pathogens Grow in Both Host and Nonhost Plants, Bacterial Pathogens Induce Leakage of Nutrients in Both Host and Nonhost Plants, Bacterial Genes Involved in Recognition of Hosts and Nonhosts, Coregulation of hrp, avr and Other Pathogenicity Genes, Transcription of Bacterial Pathogenicity Genes in Planta, Plant-Derived Molecules May Be Involved in Induction of Bacterial Genes, Some Plant Signals May Direct Synthesis of Elicitors, Secretion of Elicitors From Bacterial Cells in Plants, The Role of hrp and avr Genes in Early Recognition Process in Plant-Bacterial Pathogen Interactions, Other Signal Molecules of Bacterial Pathogens, The Signal Transduction System, Systemic Signal Induction, Is Cell Death Involved in Signal Transduction Pathway?, How Pathogens Avoid or Overcome Host Defense Mechanisms Induced by the Signal Transduction System?, Possible Role of Signal Transduction System in Evasion of Host Recognition by Phytopathogenic Bacteria During Pathogenesis, Conclusion, Chapter 2. Host Defense Mechanisms: Cell Wall?the First Barrier and a Source of Defense Signal Molecules, The First Barrier to Bacterial Infection in Plants, Structure of the Plant Cell Wall, Pectic Polysaccharides, Cellulose, Hemicellulos, Cell Wall Proteins, Bacterial Genes Encoding Extracellular Enzymes, Bacterial Genes Regulating Production of Extracellular Enzymes, Bacterial Genes Regulating Secretion o