Reactive Oxygen Species and Oxidative Damage in Plants Under Stress

✍ Scribed by Dharmendra K. Gupta, José M. Palma, Francisco J. Corpas (eds.)

• Publisher: Springer International Publishing
• Year: 2015
• Tongue: English
• Leaves: 373
• Edition: 1
• Category: Library

✦ Synopsis

This book provides detailed and comprehensive information on oxidative damage caused by stresses in plants with especial reference to the metabolism of reactive oxygen species (ROS).

In plants, as in all aerobic organisms, ROS are common by-products formed by the inevitable leakage of electrons onto O₂ from the electron transport activities located in chloroplasts, mitochondria, peroxisomes and in plasma membranes or as a consequence of various metabolic pathways confined in different cellular loci. Environmental stresses such as heat, cold, drought, salinity, heavy-metal toxicity, ozone and ultraviolet radiation as well as pathogens/contagion attack lead to enhanced generation of ROS in plants due to disruption of cellular homeostasis. ROS play a dual role in plants; at low concentrations they act as signaling molecules that facilitate several responses in plant cells, including those promoted by biotic and abiotic agents. In divergence, at high levels they cause damage to cellular constituents triggering oxidative stress. In either case, small antioxidant molecules and enzymes modulate the action of these ambivalent species.

✦ Table of Contents

Front Matter....Pages i-xii
Production Sites of Reactive Oxygen Species (ROS) in Organelles from Plant Cells....Pages 1-22
What Do the Plant Mitochondrial Antioxidant and Redox Systems Have to Say Under Salinity, Drought, and Extreme Temperature?....Pages 23-55
ROS as Key Players of Abiotic Stress Responses in Plants....Pages 57-82
Redox Regulation and Antioxidant Defence During Abiotic Stress: What Have We Learned from Arabidopsis and Its Relatives?....Pages 83-113
ROS Signaling: Relevance with Site of Production and Metabolism of ROS....Pages 115-125
Heavy Metal-Induced Oxidative Stress in Plants: Response of the Antioxidative System....Pages 127-163
Arsenic and Chromium-Induced Oxidative Stress in Metal Accumulator and Non-accumulator Plants and Detoxification Mechanisms....Pages 165-189
Phytochelatin and Oxidative Stress Under Heavy Metal Stress Tolerance in Plants....Pages 191-217
General Roles of Phytochelatins and Other Peptides in Plant Defense Mechanisms Against Oxidative Stress/Primary and Secondary Damages Induced by Heavy Metals....Pages 219-245
Role of Polyphenols as Antioxidants in Native Species from Argentina Under Drought and Salinization....Pages 247-267
Reactive Oxygen Species and Plant Disease Resistance....Pages 269-303
Modulation of the Ascorbate–Glutathione Cycle Antioxidant Capacity by Posttranslational Modifications Mediated by Nitric Oxide in Abiotic Stress Situations....Pages 305-320
ROS–RNS–Phytohormones Network in Root Response Strategy....Pages 321-339
Relationship Between Changes in Contents of Nitric Oxide and Amino Acids Particularly Proline in Plants Under Abiotic Stress....Pages 341-352
Transgenic Plants and Antioxidative Defense: Present and Future?....Pages 353-370

✦ Subjects

Plant Physiology; Plant Biochemistry; Oxidative Stress; Plant Breeding/Biotechnology