Terminology Related to Induced Systemic Resistance: Incorrect Use of Synonyms may Lead to a Scientific Dilemma by Misleading Interpretation of Results -- What's Old and What's New in Concepts of Induced Systemic Resistance in Plants, and its Application -- QTL Analysis of Multigenic Disease Resistance in Plant Breeding -- Ultrastructural Studies in Plant Disease Resistance -- The Hypersensitive Response in Plant Disease Resistance -- The Possible Role of PR Proteins in Multigenic and Induced Systemic Resistance -- Chemical Signals in Plant Resistance: Salicylic Acid -- Signaling in Plant Resistance Responses: Divergence and Cross-Talk of Defense Pathways -- The Relationship Between Basal and Induced Resistance in Arabidopsis -- Induced Systemic Resistance Mediated by Plant Growth-Promoting Rhizobacteria (PGPR) and Fungi (PGPF) -- Chemical Signals in Plants: Jasmonates and the Role of Insect-Derived Elicitors in Responses to Herbivores -- Tree Defenses Against Insects -- The Role of Terpene Synthases in the Direct and Indirect Defense of Conifers Against Insect Herbivory and Fungal Pathogens -- Mechanisms Involved in Plant Resistance to Nematodes -- Mechanisms Involved in Induced Resistance to Plant Viruses -- Mechanisms Underlying Plant Tolerance to Abiotic Stresses -- Commercialization of Plant Systemic Defense Activation: Theory, Problems and Successes -- Engineering Plants for Durable Disease Resistance -- Plantibody-Based Disease Resistance in Plants. This comprehensive volume consists of a series of up-to-date reviews, each incorporating current models and knowledge related to mechanisms of resistance either expressed constitutively or induced systemically in plants. Each chapter covers a topic related to the phenomenon of plant resistance to fungal and bacterial pathogens, insects, nematodes, viruses or abiotic stress in plants, as well as the application of this knowledge to protect crops now and in the future. Researchers, upper-level undergraduate and graduate students, and those teaching courses in plant physiology, entomology and plant pathology will find this volume a much needed asset. Featured Topics include: QTL analysis of multigenic disease resistance in plant breeding Ultrastructural studies in plant disease resistance Chemical signals in plant resistance: salicylic acid Signaling in plant resistance responses: divergence and cross-talk of defense pathways Tree defenses against insects Chemical signals in plants: jasmonates and the role of insect-derived elicitors in responses to herbivores Engineering plants for durable disease resistance Commercialization of plant systemic defense activation: theory, problems and successes