Cover ; volume 1; Title Page ; Copyright ; Contents ; About the Editor ; List of Contributors ; Preface ; Part I Action of Phytohormones in Stress ; Chapter 1 Auxin as a Mediator of Abiotic Stress Responses ; 1.1 Introduction1.2 Auxin: A Short Overview of Appearance, Metabolism, Transport, and Analytics 1.2.1 De Novo Synthesis ; 1.2.2 Reversible and Irreversible Conjugation Pathways ; 1.2.3 IBA to IAA Conversion ; 1.2.4 Degradation Pathways ; 1.2.5 Polar Auxin Transport1.2.6 Analytical Methods in Auxin Identification and Quantification 1.3 How Auxin Homeostasis Shifts with Diverse Abiotic Stresses ; 1.3.1 How the Auxin Pool is Affected by Abiotic Stress? ; 1.3.2 Transcription of Auxin Metabolic Genes under Abiotic Stress1.3.3 What Can We Learn from Functional Analysis Research? 1.4 How Does Auxin Signaling Respond to Abiotic Stress? ; 1.4.1 Brief Overview of Auxin Perception and Signaling1.4.2 Auxin Signaling Attenuation under Stress Conditions: The Importance of miRNA Driven Post-Transcriptional Regulation 1.5 Auxin and Redox State During Abiotic Stress ; 1.6 Auxin-Stress Hormones Crosstalk in Stress Conditions ; 1.6.1 Auxin-ABA Crosstalk ; 1.6.2 Auxin-JA Crosstalk