Note: Intro -- Preface -- Acknowledgments -- Contents -- Editor and Contributors -- Chapter 1: Introduction to Plant Hormones and Climate Change -- 1 Introduction -- 2 Plant Hormones -- 3 General Concepts of Phytohormone Synthesis, Perception, and Signaling -- 4 Phytohormones in Plant Growth, Development, and Stress Response -- 4.1 Auxins -- 4.2 Cytokinins -- 4.3 Gibberellins -- 4.4 Abscisic Acid -- 4.5 Ethylene -- 4.6 Salicylates -- 4.7 Jasmonates -- 4.8 Brassinosteroids -- 4.9 Strigolactones -- 5 Conclusions and Future Perspectives -- References -- Chapter 2: The Complex Interaction Between Elevated CO2 and Hormones on the Control of Plant Growth -- 1 Introduction -- 2 Elevated CO2 and Abscisic Acid Interaction in the Control of Stomatal Dynamics -- 3 Convergence of Elevated CO2 and Hormone Signaling in the Control of Stomatal Dynamics -- 4 Elevated CO2 and Hormones Control Stomatal Development -- 5 Sugar Signaling Controls Plant Hormones at Elevated CO2 -- 6 The Effect of Elevated [CO2] on Plant Growth Is Growth Habit and Age Dependent -- 7 Hormonal Responses of Plants to Biotic and Abiotic Stresses Under Elevated [CO2] -- 8 Elevated [CO2] and Hormonal Responses of Plant Abiotic Stresses: Drought, Heat, and Soil Salinity -- 9 Elevated [CO2] and Hormonal Responses of Plant Biotic Stresses: Pathogens and Insects -- 10 Conclusions -- References -- Chapter 3: Role of Plant Hormones in Plant Response to Elevated CO2 Concentrations: Above- and Below-ground Interactions -- 1 Introduction -- 2 Elevated Atmospheric CO2 Effects on Phytohormones -- 2.1 Auxins and CO2 -- 2.2 Cytokinins and CO2 -- 2.3 Gibberellins (GAs) and CO2 -- 2.4 Jasmonic Acid (JA) and CO2 -- 2.5 Salicylic Acid and CO2 -- 2.6 Abscisic Acid and CO2 -- 2.7 Ethylene and CO2 -- 3 CO2 Movement in Plant Roots and Rhizosphere -- 4 Effects of RZ CO2 Enrichment on Phytohormones. , 5 Conclusions and Future Perspectives -- References -- Chapter 4: The Intriguous Roles of Phytohormones in Plant Response to Ozone Interacting with Other Major Climate Change Stress... -- 1 Climate Change, Ozone, and Plant Life -- 2 Phytohormones and Signaling Molecules Involved in O3-Induced Response -- 2.1 The Role of Ethylene -- 2.2 The Role of Abscisic Acid -- 2.3 The Role of Salicylic Acid -- 2.4 The Role of Jasmonic Acid -- 3 Summary and Future Perspectives -- References -- Chapter 5: Role of Phytohormones in Plant Responses to Acid Rain -- 1 Introduction -- 2 Plant Growth and Development as Influenced by Acid Rain Stress -- 3 Plant Response to Acid Rain-Induced Oxidative Stress -- 4 Gene Expression Profile in Plants Under Acid Rain Stress -- 5 Role of Melatonin in Plant Response to Acid Rain Stress -- 6 Impact of Glutathione in Plants Under Acid Rain Stress -- 7 ABA in Plant Tolerance to Acid Rain Stress -- 8 Conclusions -- References -- Chapter 6: The Role of Plant Hormones in Fruit Response to Photooxidative and Heat Stress -- 1 Introduction -- 2 Reactive Oxygen Species (ROS) and Oxidative Stress in Fruit -- 3 Physiological Responses to Photooxidative Stress (POS) and Heat Stress (HS) in Plants and Fruit -- 4 Phytohormones Signaling in Response to POS and HS: Role of ABA, Jasmonic Acid (JA), and Ethylene -- 5 Conclusions -- References -- Chapter 7: Phytochrome and Hormone Signaling Crosstalk in Response to Abiotic Stresses in Plants -- 1 Introduction -- 2 Heat Stress -- 3 Low-Temperature Stress -- 4 Drought Stress -- 5 Salt Stress -- 6 Concluding Remarks -- References -- Chapter 8: Phytohormone-Mediated Regulation of Heat Stress Response in Plants -- 1 Introduction -- 2 Sensing Thermal Stimuli by Plants -- 2.1 Calcium -- 2.2 Hydrogen Peroxide -- 2.3 Membrane Lipids -- 2.4 Light Receptors -- 2.5 Histones and Stability of Nucleic Acids. , 2.6 Heat Shock Proteins -- 2.7 Methyl Erythritol Cyclodiphosphate -- 2.8 Volatile Compounds -- 2.9 Photosynthesis -- 2.10 Tissue-Specific Heat-Stress Responses -- 3 Thermomorphogenesis -- 4 Phytohormones Involved in Heat Stress Responses -- 4.1 Abscisic Acid -- 4.2 Salicylic Acid -- 4.3 Jasmonic Acid -- 4.4 Ethylene -- 4.5 Auxins -- 4.6 Cytokinins -- 4.7 Gibberellins -- 4.8 Brassinosteroids -- 4.9 Strigolactones -- 5 Conclusion -- References -- Chapter 9: Phytohormones and Cold Stress Tolerance -- 1 Introduction -- 2 New Players: SLs and BRs Role in Cold Tolerance -- 3 Key Function of Old Players ABA and JA in Cold Tolerance -- 4 ET: A Well-Known Stress-Responsive Player -- 5 Cold Responses Mediated by Growth-Promoting Phytohormones -- 6 Phytohormones Interplay Towards Cold Tolerance -- 7 Perspectives and Future Challenges -- References -- Chapter 10: Drought Stress: Involvement of Plant Hormones in Perception, Signaling, and Response -- 1 Putative Roles of ABA in Drought Stress Response -- 2 ABA-Dependent and ABA-Independent Signaling Pathways Under Drought Stress -- 3 Putative Roles of Auxin in Drought Stress Response -- 4 Role of Auxin Responsive Genes in Drought Stress Response -- 5 Involvement of Auxin Carriers in Drought Stress Response -- 6 Putative Roles of Gibberellin in Drought Stress Response -- 7 Role of GA on Stomata Movement and Other Physiological Responses -- 8 Role of GA in Leaf Senescence and Drought Stress Signaling -- 9 Mediation of Cellular Expansion Under Drought Stress -- 10 Putative Roles of Cytokinin in Drought Stress Response -- 11 Leaf Senescence and Drought Stress Signaling -- 12 Putative Roles of Ethylene in Drought Stress Response -- 13 Involvement of Ethylene in Stomatal Movements -- 14 Putative Roles of Polyamines in Drought Stress Response -- 15 Hormonal Cross Talk Under Drought Stress -- References. , Chapter 11: Involvement of Phytohormones in Flooding Stress Tolerance in Plants -- 1 Introduction -- 2 Roles of Ethylene in Flooding Stress Tolerance -- 2.1 Role of Ethylene in Altering Plants to Low-Oxygen Level -- 2.2 Role of Ethylene in Lysigenous Aerenchyma Formation -- 2.3 Role of Ethylene in Adventitious Root Formation -- 2.4 Role of Ethylene in Control of Shoot/Internode Elongation Under Submergence -- 3 Roles of Auxin in Plant Response to Flooding -- 3.1 Role of Auxin in Aerenchyma Formation -- 3.2 Role of Auxin in Adventitious Root Formation -- 4 Roles of Gibberellin in Plant Response to Flooding -- 4.1 Role of GA in Internode Elongation -- 4.2 Role of GA in Adventitious Root Formation -- 5 Roles of Abscisic Acid in Flooding Stress Tolerance -- 5.1 Role of ABA in Metabolism Response -- 5.2 Role of ABA in Adventitious Root Formation -- 5.3 Role of ABA in Internode Elongation -- 6 Conclusions and Perspectives -- References -- Chapter 12: Roles of Long-Distance Signals in Nitrogen, Phosphorus, and Sulfur Uptake and Sensing in Plants -- 1 Introduction -- 2 Auxin Biosynthesis, Metabolism, Transport, and Signaling -- 3 Cytokinin Biosynthesis, Metabolism, Transport, and Signaling -- 4 Strigolactone Biosynthesis, Metabolism, Transport, and Signaling -- 5 Roles of Long-Distance Signals in Nitrogen Deficiency -- 6 Roles of Long-Distance Signals in Phosphate Deficiency -- 7 Roles of Long-Distance Signals in Sulfur Deficiency -- 8 Conclusions and Perspectives -- References -- Chapter 13: Phytohormone Involvement in Plant Responses to Soil Acidity -- 1 Introduction -- 2 Responses of Plant Hormones to Soil Acidity -- 3 Essential Mineral Nutrients and Plant Hormones in Responses to Soil Acidity -- 4 Aluminum Toxicity and Plant Hormones -- 5 Conclusions -- References. , Chapter 14: Plant Response to Toxic Metals: Emerging Sources, Phytohormone Role, and Tolerance Responses -- 1 Initial Consideration -- 2 Cadmium (Cd) -- 2.1 Nature and Sources -- 2.2 Absorption and Transport -- 2.3 Toxicity Effects -- 2.4 Hormonal Signaling to Cd Toxicity -- 2.5 ABA Role in Cd Tolerance -- 3 Arsenic (As) -- 3.1 Nature and Sources -- 3.2 Absorption and Transport -- 3.3 Toxicity Effects -- 3.4 Initial Considerations on Hormonal Signaling -- 3.5 ABA Role in As Tolerance -- 3.5.1 Inhibition of As Absorption -- 3.5.2 Alterations in As Distribution Between Root and Shoot -- 3.5.3 ABA Promotes Chelation and Vacuolar Sequestration of As -- 4 Lead (Pb) -- 4.1 Nature and Sources -- 4.2 Absorption and Transport -- 4.3 Toxicity Effects -- 4.4 Initial Considerations on Hormonal Signaling -- 4.5 ABA Role in Pb Tolerance -- 5 Aluminum (Al3+) -- 5.1 Nature and Sources -- 5.2 Absorption and Transport -- 5.3 Toxicity Effects -- 5.4 Initial Considerations on Hormonal Signaling -- 5.5 ABA Role in Al Tolerance -- 6 Final Considerations -- References -- Index.