Reactive Oxygen Species and Antioxidant Systems in Plants: Role and Regulation under Abiotic Stress

M. Iqbal R. Khan, Nafees A. Khan

• Publisher: Springer
• Year: 2017
• Print ISBN:
  9789811052538
• eBook ISBN:
  9789811052545
• Topic: Biological Sciences
• Subtopic: Physiology
• Index: Biological Sciences

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 issues and how ROS metabolism can manipulate with antioxidant system to accelerate detoxification mechanism. It will enhance the mechanistic understanding on ROS and antioxidants system and will pave the path for agricultural scientists in developing tolerant crops to achieve sustainability under the changing environmental conditions.

The increase in abiotic stress factors has become a major threat to sustainability of crop production. This situation has led to think ways which can help to come out with potential measures; for which it is necessary to understand the influence of abiotic stress factors on crops performance and the mechanisms by which these factors impact plants. It has now become evident that abiotic stress impacts negatively on plant growth and development at every stage of plant's life. Plants adapt to the changing environment with the adjustment at physiological, biochemical and molecular levels. The possible mechanisms involved in the negative effects of abiotic stress factors are excess production of reactive oxygen species (ROS). They alter physiological and molecular mechanisms leading to poor performance of plants. Plants however, are able to cope with these adverse effects by inducing antioxidant systems as the priority. Nevertheless, the dual role of ROS has now been ascertained which provides an evidence for regulation of plant metabolism positively on a concentration-dependent manner. Under conditions of high ROS production, the antioxidant system plays a major role in diminishing the effects of ROS. Thus, ROS production and antioxidant system are interwoven with abiotic stress conditions. The antioxidants have the capacity to hold the stability in metabolism in order to avoid disruption due to environmental disturbances.

Table of contents

• Preface
• Contents
• Contributors
• 1: An Introduction to Antioxidants and Their Roles in Plant Stress Tolerance:
• 2: An Introduction to Reactive Oxygen Species Metabolism Under Changing Climate in Plants
• 3: Biotechnological Perspective of Reactive Oxygen Species (ROS)-Mediated Stress Tolerance in Plants
• 4: ROS Compartmentalization in Plant Cells Under Abiotic Stress Condition
• 5: Reactive Oxygen Species Production and Detoxification During Leaf Senescence
• 6: ROS-Induced Transcription Factors During Oxidative Stress in Plants: A Tabulated Review
• 7: ROS-Induced Signaling and Gene Expression in Crops Under Salinity Stress
• 8: ROS Signaling in Plants Under Heavy Metal Stress
• 9: Effects of Different Metal Stresses on the Antioxidant Defense Systems of Medicinal Plants
• 10: Responses, Adaptation, and ROS Metabolism in Plants Exposed to Waterlogging Stress
• 11: Role of Reactive Oxygen Species in Water-Deficit Stress Response
• 12: Contribution of Glutathione in Heavy Metal Stress Tolerance in Plants
• 13: Production of Antioxidant and Oxidant Metabolites in Tomato Plants Infected with Verticillium dahliae Under Saline Conditions