Reactive Oxygen Species and Antioxidants in Higher Plants - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Reactive Oxygen Species and Antioxidants in Higher Plants write by S. Dutta Gupta. This book was released on 2010-09-15. Reactive Oxygen Species and Antioxidants in Higher Plants available in PDF, EPUB and Kindle. Providing basic information on reactive oxygen species (ROS), this volume describes new developments in the action of ROS, the role of antioxidants, and the mechanisms developed to scavenge free radical associated cellular damage. It illustrates the chemistry of ROS, ROS signaling, antioxidative defense systems, transgene approaches in scavenging ROS, and the role of oxidative stress in plant recalcitrance and hyperhydricity as well as how plants orchestrate their response to morphogenesis. It also includes a brief account of the use of medicinal plants for natural antioxidants, emphasizing biochemical details.
Reactive Oxygen Species and Antioxidants in Higher Plants
Reactive Oxygen Species and Antioxidants in Higher Plants - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Reactive Oxygen Species and Antioxidants in Higher Plants write by S. Dutta Gupta. This book was released on 2010-09-15. Reactive Oxygen Species and Antioxidants in Higher Plants available in PDF, EPUB and Kindle. Providing basic information on reactive oxygen species (ROS), this volume describes new developments in the action of ROS, the role of antioxidants, and the mechanisms developed to scavenge free radical associated cellular damage. It illustrates the chemistry of ROS, ROS signaling, antioxidative defense systems, transgene approaches in scavenging R
Antioxidants and Antioxidant Enzymes in Higher Plants
Antioxidants and Antioxidant Enzymes in Higher Plants - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Antioxidants and Antioxidant Enzymes in Higher Plants write by Dharmendra K. Gupta. This book was released on 2018-03-10. Antioxidants and Antioxidant Enzymes in Higher Plants available in PDF, EPUB and Kindle. This book provides an overview of antioxidants and antioxidant enzymes and their role in the mechanisms of signaling and cellular tolerance under stress in plant systems. Major reactive oxygen species (ROS)-scavenging/modulating enzymes include the superoxide dismutase (SOD) that dismutates O2 into H2O2, which is followed by the coordinated action of a set of enzymes including catalase (CAT), ascorbate peroxidase (APX), glutathione peroxidase (GPX) and peroxiredoxins (Prx) that remove H2O2. In addition to the ROS scavenging enzymes, a number of other enzymes are found in various subcellular compartments, which are involved in maintaining such redox homeostasis either by directly scavenging particular ROS and ROS-byproducts or by replenishing antioxidants. In that respect, these enzymes can be also considered antioxidants. Such enzymes include monodehydroascorbate reductase (MDAR), dehydroascorbate reductase (DHAR), glutathione reductase (GR), alternative oxidases (AOXs), peroxidases (PODs) and glutathione S-transferases (GSTs). Some non-enzymatic antioxidants, such as ascorbic acid (vitamin C), carotenes (provitamin A), tocopherols (vitamin E), and glutathione (GSH), work in concert with antioxidant enzymes to sustain an intracellular steady-state level of ROS that promotes plant growth, development, cell cycles and hormone signaling, and reinforces the responses to abiotic and biotic environmental stressors. Offering a unique compilation of information on antioxidants and antioxidant enzymes, this is a valuable resource for advanced students and researchers working on plant biochemistry, physiology, biotechnology, and signaling in cell organelles, and those specializing in plant enzyme technology.
Antioxidants and Reactive Oxygen Species in Plants
Antioxidants and Reactive Oxygen Species in Plants - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Antioxidants and Reactive Oxygen Species in Plants write by Nicholas Smirnoff. This book was released on 2008-04-15. Antioxidants and Reactive Oxygen Species in Plants available in PDF, EPUB and Kindle. Reactive oxygen species (ROS) are produced during the interaction of metabolism with oxygen. As ROS have the potential to cause oxidative damage by reacting with biomolecules, research on ROS has concentrated on the oxidative damage that results from exposure to environmental stresses and on the role of ROS in defence against pathogens. However, more recently, it has become apparent that ROS also have important roles as signalling molecules. A complex network of enzymatic and small molecule antioxidants controls the concentration of ROS and repairs oxidative damage, and research is revealing the complex and subtle interplay between ROS and antioxidants in controlling plant growth, development and response to the environment. This book covers these new developments, generally focussing on molecular and biochemical details and providing a point of entry to the detailed literature. It is directed at researchers and professionals in plant molecular biology, biochemistry and cell biology, in both the academic and industrial sectors.
Reactive Oxygen Species and Antioxidant Systems in Plants: Role and Regulation under Abiotic Stress
Reactive Oxygen Species and Antioxidant Systems in Plants: Role and Regulation under Abiotic Stress - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Reactive Oxygen Species and Antioxidant Systems in Plants: Role and Regulation under Abiotic Stress write by M. Iqbal R. Khan. This book was released on 2017-08-02. Reactive Oxygen Species and Antioxidant Systems in Plants: Role and Regulation under Abiotic Stress available in PDF, EPUB and Kindle. 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.
