Plant Pathogenesis

ISBN-13: 9783642661860 / Angielski / Miękka / 2011 / 108 str.

Harry Wheeler

Opis

The Advanced Series in Agricultural Sciences is designed to fill a long-felt need for advanced educational and technological books in the agricultural sciences. These texts, intended primarily for students of agriculture, should also provide up-to-date technical background reading for the many agricultural workers in extension services, educational systems, or international bodies. The editors of Advanced Series in Agricultural Sciences will select key subjects relating to the agricultural environment, agricultural physics and chemistry, soil science, plant sciences, animal sciences, food technology, and agricultural engineering for a critical and synthetic appraisal. An initial theoretical presentation will be used by authors of individual volumes in the series to develop a technical approach including examples and practical solutions to each subject. In addressing the advanced undergraduate and early graduate student of agriculture, selected authors will present the latest information, leavened with the lessons learned from their own experience, on precise and well-defined topics. Such books that widen the horizons of the student of agriculture can serve, too, as useful reference sources for the young specialist in the early years of his career. Many specialists who are involved in teaching agricultural science are isolated from universities and research institutions. This series will bring them up-to-date scientific information, thus keeping them in touch with progress. The basic objective of Advanced Series in Agricultural Sciences is to effect a structural integration of the theoretic and technical approaches to agriculture.

Spis treści

1 Concepts and Definitions.- A. Plant Disease.- B. Pathogens and Parasites.- C. Pathogenicity and Disease Reaction.- D. Problems of Terminology.- 2 Mechanisms of Pathogenesis.- A. Initial Stages of Pathogenesis.- I. Contact.- II. Entry.- B. Mechanisms of Attack.- I. Enzymes.- II. Growth Regulators.- III. Toxins.- 3 Responses of Plants to Pathogens.- A. Pathological Alterations in Structure.- I. The Sequence of Changes in Infected Living Tissues.- II. Pathological Changes in Ultrastructure.- B. Pathological Alterations in Function.- I. Changes in Cell Permeability.- II. Impairment of Water Relations.- III. Effects on Translocation and Mobilization.- C. Pathological Alterations in Metabolism.- I. Changes in Respiration.- II. Effects on Carbon Dioxide Fixation.- III. Nucleic Acids and Proteins.- IV. Phenol Metabolism.- 4 Disease-Resistance Mechanisms.- A. Induced Changes in Disease Reactions.- I. Induced Resistance to Viruses.- II. Induced Resistance to Bacteria.- III. Induced Resistance to Fungi.- B. Phytoalexins.- I. Storage Organ Slices.- II. Legume Pods and Hypocotyls.- III. Evaluation of the Phytoalexin Theory.- C. Lysosomes.- 5 Genetics of Pathogenesis.- A. Genetic Dissection.- B. The Gene-for-Gene-Concept.- I. The Quadratic Check.- C. Biochemistry of Pathogen Specificity.- I. The Role of Selective Pathotoxins.- II. The Role of Cell Wall-Degrading Enzymes.- III. Evidence for Specific Inducers of Resistance.- IV. The Common Antigen Hypothesis.- V. The Phytoalexin-Induction Hypothesis.- VI. Summary.- D. Genetic Vulnerability.- 6 Nature of the Physiological Syndrome.- References.