Reactive Oxygen Species and Antioxidant Systems in Plants.

• Main Author: Khan, M. Iqbal R.
• Other Authors: Khan, Nafees A.
• Format: Electronic eBook
• Language: English
• Published: Singapore : Springer Singapore, 2017.
• Subjects: Plants > Effect of stress on > Molecular aspects.; Active oxygen.; elektronické knihy; electronic books
• ISBN: 9789811052545; 9789811052538
• Physical Description: 1 online resource (336 pages)

The present edited book is an attempt to update the state of art of the knowledge on metabolism of ROS and antioxidants and their relationship in plant adaptation to abiotic stresses involving physiological, biochemical and molecular processes. The chapters are much focused on the current climate is...

Table of Contents:

• Preface; Contents; Contributors; 1: An Introduction to Antioxidants and Their Roles in Plant Stress Tolerance: ; 1.1 Introduction; 1.1.1 Antioxidant Defence Mechanism; 1.1.2 Types of Antioxidants; 1.1.2.1 Primary or Natural Antioxidants; 1.1.2.2 Secondary or Synthetic Antioxidants; 1.2 Natural Antioxidants; 1.2.1 Antioxidant Enzymes; 1.2.1.1 Superoxide Dismutase; 1.2.1.2 Catalase; 1.2.1.3 Peroxidases; Guaiacol Peroxidase; Ascorbate Peroxidase (APX); 1.3 Halliwell-Asada Cycle; 1.3.1 Glutathione Reductase; 1.3.2 Monodehydroascorbate Reductase (MDHAR); 1.3.3 Dehydroascorbate Reductase (DHAR).
• 2.3 ROS Generation Sites in Plant Cells2.3.1 Chloroplast; 2.3.2 Mitochondria; 2.3.3 Endoplasmic Reticulum; 2.3.4 Peroxisomes; 2.3.5 Apoplast; 2.3.6 Plasma Membranes; 2.3.7 Cell Wall; 2.4 Oxidative Damage to Biomolecules; 2.4.1 Lipids; 2.4.2 Proteins; 2.4.3 DNA; 2.5 Antioxidative Defence System in Plants; 2.5.1 Enzymatic Antioxidants; 2.5.1.1 Superoxide Dismutase (SOD); 2.5.1.2 Catalase (CAT); 2.5.1.3 Ascorbate Peroxidase (APX); 2.5.1.4 Monodehydroascorbate Reductase (MDHAR); 2.5.1.5 Dehydroascorbate Reductase (DHAR); 2.5.1.6 Glutathione Reductase (GR); 2.5.1.7 Guaiacol Peroxidase (GPX).
• 2.5.2 Non-enzymatic Antioxidants2.5.2.1 Ascorbic Acid (AA); 2.5.2.2 Reduced Glutathione (GSH); 2.5.2.3 Tocopherols; 2.5.2.4 Carotenoids; 2.5.2.5 Proline; 2.5.2.6 Flavonoids; 2.6 Detoxification by Antioxidative Machinery Under Stressful Environments; 2.7 Conclusion and Future Prospects; References; 3: Biotechnological Perspective of Reactive Oxygen Species (ROS)-Mediated Stress Tolerance in Plants; 3.1 Introduction; 3.2 Antioxidants Involved in Scavenging Pathways by Regulating Molecular and Physiological Approaches; 3.2.1 Enzymatic ROS; 3.2.1.1 Superoxide Dismutase (SOD).
• 3.2.1.2 Ascorbate Peroxidise (APX)3.2.1.3 Monodehydroascorbate Reductase (MDHAR); 3.2.1.4 Dehydroascorbate Reductase (DHAR); 3.2.1.5 Glutathione Reductase (GR); 3.2.2 Non-enzymatic ROS Scavengers; 3.2.2.1 Ascorbate; 3.2.2.2 Glutathione; 3.3 ROS Generation Sites in a Plant Cell; 3.3.1 Chloroplast; 3.3.2 Mitochondria; 3.3.3 Peroxisome; 3.3.4 Plasma Membrane; 3.3.5 Cell Wall; 3.3.6 Apoplast; 3.3.7 Endoplasmic Reticulum; 3.4 ROS Chemistry and Effect Under Abiotic Stress; 3.4.1 Singlet Oxygen (1O2); 3.4.2 Superoxide Radical (O2- ); 3.4.3 Hydrogen Peroxide (H2O2).