内容

目次

1. Some Basic Concepts and Definitions in Resistance Studies.- 1.1. Why study resistance?.- 1.2. Some working definitions.- References.- 2. Host Range Control and Hon-Host Immunity to Viruses.- 2.1. Introduction.- 2.2. Host range control.- 2.3. Possible mechanisms in non-host immunity.- 2.4. Conclusion.- References.- 3. Non-Host Resistance to Fungi.- 3.1. Introduction: definitions and problems.- 3.2. Microscopy of non-host resistance to fungi.- 3.3. Mechanisms of non-host resistance: general considerations.- 3.4. Mechanisms of resistance dependent on an absence of factors in the potential host.- 3.5. Mechanisms of resistance dependent on the presence or production of factors by the potential host.- 3.6. Conclusions.- References.- 4. Genetics of Host Resistance to Viruses and of Virulence.- 4.1. Introduction.- 4.2. Genetics of resistance: many cases are under simple Mendelian control.- 4.3. Genetic determinants of virulence.- 4.4. Dominance, recessiveness and modifiers: theoretical considerations.- 4.5. Resistance and virulence: the gene-for-gene relationship.- References.- 5. The Genetic Bases of Relationships between Microbial Parasites and Their Hosts.- 5.1. Introduction: an overview of the genetics of hostmicrobial parasite associations.- 5.2. Types and stability of resistance.- 5.3. Detailed consideration of quantitatively inherited resistance and virulence.- 5.4. Detailed consideration of gene-for-gene relationships.- 5.5. Genetics of resistance and complementary virulence above the cultivar level.- 5.6. Conclusion.- References.- 6. Mechanisms Involved in Genetically Controlled Resistance and Virulence: Virus Diseases.- 6.1. Introduction.- 6.2. Disease avoidance.- 6.3. Resistance operating within the plant: virus localizing mechanisms.- 6.4. Resistance mechanisms permitting some spread of virus.- 6.5. Mechanisms of virulence.- References.- 7. Mechanisms by Which Genetically Controlled Resistance and Virulence Influence Host Colonization by Fungal and Bacterial Parasites.- 7.1. Introduction.- 7.2. Passive resistance mechanisms.- 7.3. Active resistance mechanisms.- 7.4. Induction of active resistance mechanisms.- 7.5. Receptors for elictors of active resistance mechanisms.- 7.6. Physiological models to explain gene-for-gene relationships.- 7.7. Conclusion: perspectives and challenges.- References.- 8. Resistance and Pathogenicity: Epidemiological and Ecological Mechanisms.- 8.1. Introduction.- 8.2. Resistance and pathogenicity.- 8.3. Population dynamics and the genetics of epidemics.- 8.4. Topics in resistance and pathogenicity.- 8.5. Topics in fungicide insensitivity.- 8.6. Ecological and evolutionary perspectives.- 8.7. Implications for agriculture.- References.- 9. Mechanisms of Induced Resistance to Virus Disease.- 9.1. Introduction.- 9.2. Resistance induced by localized infections and analogous effects.- 9.3. Resistance induced by systemic infection.- 9.4. Conclusion.- References.- 10. Induced Resistance to Fungal and Bacterial Diseases.- 10.1. Introduction.- 10.2. Inducers of local resistance.- 10.3. The protective response in induced local resistance.- 10.4. Inducers of systemic resistance.- 10.5. The protective response in induced systemic resistance.- References.- 11. Present and Future Prospects for Exploitation of Resistance in Crop Protection by Novel Means.- 11.1. Introduction.- 11.2. Mutagenesis and variation: techniques at the cell and tissue level.- 11.3. Recombinant DNA techniques.- 11.4. The future for chemical controls.- 11.5. Conclusion.- References.