Environmental insults such as extremes of temperature, extremes of water status as well as deteriorating soil conditions pose major threats to agriculture and food security. Employing contemporary tools and techniques from all branches of science, attempts are being made worldwide to understand how plants respond to abiotic stresses with the aim to help manipulate plant performance that will be better suited to withstand these stresses. This book on abiotic stress attempts to search for possible answers to several basic questions related to plant responses towards abiotic stresses. Presented in this book is a holistic view of the general principles of stress perception, signal transduction and regulation of gene expression. Further, chapters analyze not only model systems but extrapolate interpretations obtained from models to crops. Lastly, discusses how stress-tolerant crop or model plants have been or are being raised through plant breeding and genetic engineering approaches. Twenty three chapters, written by international authorities, integrate molecular details with overall plant structure and physiology, in a text-book style, including key references.
Содержание
Stress Perception and Signal Transduction.- Abiotic Tolerance and Crop Improvement.- Sensors and Signal Transducers of Environmental Stress in Cyanobacteria.- Stress Signaling I: The Role of Abscisic Acid (ABA).- Stress Signaling II: Calcium Sensing and Signaling.- Stress Signaling III: Reactive Oxygen Species (ROS).- A Biotic or Abiotic Stress?.- Protein Kinases and Phosphatases for Stress Signal Transduction in Plants.- Nitrogen Source Influences Root to Shoot Signaling Under Drought.- Stress Regulation of Gene Expression.- Abiotic Stress Responses: Complexities in Gene Expression.- Promoters and Transcription Factors in Abiotic Stress-Responsive Gene Expression.- Epigenetic Regulation: Chromatin Modeling and Small RNAs.- Physiology and Metabolism.- Ion Homeostasis.- Glutathione Homeostasis: Crucial for Abiotic Stress Tolerance in Plants.- Water Balance and the Regulation of Stomatal Movements.- Responses to Macronutrient Deprivation.- Osmolyte Regulation in Abiotic Stress.- Programmed Cell Death in Plants.- Overcoming Stress.- Varietal Improvement for Abiotic Stress Tolerance in Crop Plants: Special Reference to Salinity in Rice.- Transgenic Approaches.- Marker Assisted Breeding.- Stress, Mutators, Mutations and Stress Resistance.- Systems Biology of Abiotic Stress: The Elephant and the Blind Men.- Global Climate Change, Stress and Plant Productivity.
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