Crop Responses and Adaptations to Temperature Stress
This book discusses Mechanisms of Chilling Injury and Tolerance, Root System Functions During Chilling Temperatures, and Strategies for Coping with Heat Stress.
Abstract
Contents * About the Editor * Contributors * Preface * Chapter 1. Mechanisms of Chilling Injury and Tolerance * Introduction * Maize Seedlings Serve As a Model System * Chilling Induces Oxidative Stress in the Tissues * Mechanisms of Chilling Responses * Antioxidant Gene Expression Responsive to Chilling Stress * Possible Roles of Hydrogen Peroxide in Signaling Mechanisms * Summary of Chilling Stress and Tolerance Mechanisms in Maize * Genetic Engineering of Chilling (Cold) Tolerance * Concluding Remarks * Chapter 2. Chilling Effects on Active Oxygen Species and Their Scavenging Systems in Plants * An Oxygenated Environment * Active Oxygen Species * Active Oxygen Scavenging Systems * Chilling Effects on Plants * Chilling Effects on Photosynthesis and Active Oxygen Species Production * Effects of Chilling on Antioxidant Systems * Conclusions * Chapter 3. Root System Functions During Chilling Temperatures: Injury and Acclimation * Introduction * Chilling Inhibition of Root Growth * Water Relations During Chilling * Mineral Uptake * Circadian Rhythms * Hormones in Chilled Roots * Root System Acclimation * Conclusion * Chapter 4. Mechanisms of Cold Acclimation * Introduction * Control of Water Status * Control of Cell Dehydration * Membrane Stabilization * Induction of Cryoprotective Proteins * Molecular Changes Related to Protein Synthesis * Cold-Induced Gene Products of Unknown Function * Regulation of Molecular Adaptations to Cold * Conclusion * Chapter 5. Signal Transduction Under Low Temperature Stress * Introduction * Low-Temperature Control of Gene Expression * Genetic Dissection of Signal Pathways * Engineering Freezing-Tolerant Crops * Chapter 6. Mechanisms of Thermotolerance in Crops * Introduction * Impact of High Temperature on Crops * Defense Mechanisms Against High-Temperature-Induced Damage * Molecular Strategies for Enhancing Thermotolerance in Crops * Conclusions and Perspectives * Chapter 7. Control of the Heat Shock Response in Crop Plants * Introduction * Expression of HSPs Following Stress and During Development * The Impact of Heat Shock on Transcription * Effects of Heat Shock on Protein Yield * Heat-Induced Changes in the Translational Machinery of Crop Plants * HSP mRNAs Escape Heat Shock-Induced Translational Repression * Regulation of RNA Degradatory Machinery Following Heat Shock * Conclusions * Chapter 8. The Effects of Heat Stress on Cereal Yield and Quality * Introduction * Effects of High Temperature on Yield * Effects of High Temperature on Quality * Strategies for Coping with Heat Stress * Conclusions * Index * Reference Notes Included