Redox Homeostasis in Plants
Redox Homeostasis in Plants

Author: Sanjib Kumar Panda

Publisher: Springer

Published: 2019-04-23

Total Pages: 203

ISBN-13: 331995315X

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This book summarizes the latest research results on the role of reactive oxygen species (ROS) in plants, particularly in many abiotic stresses, and their regulation. Redox homeostasis refers to maintaining a balance of oxidised and reduced state of biomolecules in a biological system for all-round sustenance. In a living system, redox reactions contribute to the generation of reactive oxygen species (ROS), which act as signalling molecules for developmental as well as stress-response processes in plants. It is presumed that, being sessile and an aerobe requiring oxygen for mitochondrial energy production, as well as producing oxygen during photosynthesis, the redox homeostasis process is more complex and regulated in plants than in animals. Any imbalance in the homeostasis is mainly compensated for by the production of various ROS molecules, which, though they can cause severe oxidative damage in excess, can also ideally act as signalling molecules.

Molecular Plant Abiotic Stress
Molecular Plant Abiotic Stress

Author: Aryadeep Roychoudhury

Publisher: John Wiley & Sons

Published: 2019-06-13

Total Pages: 649

ISBN-13: 111946367X

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A close examination of current research on abiotic stresses in various plant species The unpredictable environmental stress conditions associated with climate change are significant challenges to global food security, crop productivity, and agricultural sustainability. Rapid population growth and diminishing resources necessitate the development of crops that can adapt to environmental extremities. Although significant advancements have been made in developing plants through improved crop breeding practices and genetic manipulation, further research is necessary to understand how genes and metabolites for stress tolerance are modulated, and how cross-talk and regulators can be tuned to achieve stress tolerance. Molecular Plant Abiotic Stress: Biology and Biotechnology is an extensive investigation of the various forms of abiotic stresses encountered in plants, and susceptibility or tolerance mechanisms found in different plant species. In-depth examination of morphological, anatomical, biochemical, molecular and gene expression levels enables plant scientists to identify the different pathways and signaling cascades involved in stress response. This timely book: Covers a wide range of abiotic stresses in multiple plant species Provides researchers and scientists with transgenic strategies to overcome stress tolerances in several plant species Compiles the most recent research and up-to-date data on stress tolerance Examines both selective breeding and genetic engineering approaches to improving plant stress tolerances Written and edited by prominent scientists and researchers from across the globe Molecular Plant Abiotic Stress: Biology and Biotechnology is a valuable source of information for students, academics, scientists, researchers, and industry professionals in fields including agriculture, botany, molecular biology, biochemistry and biotechnology, and plant physiology.

Redox Homeostasis Managers in Plants Under Environmental Stresses
Redox Homeostasis Managers in Plants Under Environmental Stresses

Author:

Publisher:

Published: 2016

Total Pages: 0

ISBN-13:

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The production of cellular oxidants such as reactive oxygen species (ROS) is an inevitable con-sequence of redox cascades of aerobic metabolism in plants. This milieu is further aggravated by a myriad of adverse environmental conditions that plants, owing to their sessile life-style, have to cope with during their life cycle. Adverse conditions prevent plants reaching their full genetic potential in terms of growth and productivity mainly as a result of accelerated ROS generation-accrued redox imbalances and halted cellular metabolism. In order to sustain ROS-accrued consequences, plants tend to manage a fine homeostasis between the generation and antioxidants-mediated metabolisms of ROS and its reaction products. Well-known for their involvement in the regulation of several non-stress-related processes, redox related components such as proteinaceous thiol members such as thioredoxin, glutaredoxin, and peroxiredoxin proteins, and key soluble redox-compounds namely ascorbate (AsA) and glutathione (GSH) are also listed as efficient managers of cellular redox homeostasis in plants. The management of the cellular redox homeostasis is also contributed by electron carriers and energy metabolism mediators such as non-phosphorylated (NAD+) and the phosphorylated (NADP+) coenzyme forms and their redox couples DHA/AsA, GSSG/GSH, NAD+/NADH and NADP+/NADPH. Moreover, intracellular concentrations of these cellular redox homeostasis managers in plant cells fluctuate with the external environments and mediate dynamic signaling in pant stress responses. This research topic aims to exemplify new information on how redox homeostasis managers are modulated by environmental cues and what potential strategies are useful for improving cellular concentrations of major redox homeostasis managers. Additionally, it also aims to pro-vide readers detailed updates on specific topics, and to highlight so far unexplored aspects in the current context.

Mechanism of Plant Hormone Signaling under Stress, 2 Volume Set
Mechanism of Plant Hormone Signaling under Stress, 2 Volume Set

Author: Girdhar K. Pandey

Publisher: John Wiley & Sons

Published: 2017-04-24

Total Pages: 1114

ISBN-13: 1118888928

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Bei vielen physiologischen und Entwicklungsprozessen sowie bei Stressreaktionen spielen Hormonsignale, die Pflanzen aussenden, eine große Rolle. Mit Aufkommen der neuen post-genomischen Molekulartechnologien sind auch unsere Möglichkeiten, die Wirkung von Hormonsignalen auf die Genexpression und adaptive Prozesse zu verstehen, heute einzigartig. Wenn wir die molekularen Grundlagen dieser Prozesse entschlüsseln, ergeben sich für die Entwicklung neuer Pflanzenbiotechnologien und verbesserter Varianten von Kulturpflanzen große Chancen. Die Themen dieses Buches legen den Schwerpunkt auf die Genomik und funktionale Aspekte der Genomik. Damit lassen sich globale Veränderungen und Veränderungen auf Ebene des gesamten Genoms unter spezifischen Stressbedingungen verstehen. Mit funktionalen Werkzeugen der Genomik kann der Mechanismus von Phytohormonsignalen in Verbindung mit den zugehörigen Zielgenen systematischer definiert werden. Die integrierte Analyse von Phytohormonsignalen bei einzelnen oder mehreren Stressbedingungen ist unter Umständen für die Entwicklung stresstoleranter Kulturpflanzen eine außergewöhnliche Möglichkeit. Mechanism of Plant Hormone Signaling Under Stress beschreibt die jüngsten Fortschritte und zeigt, wie heutige Erkenntnisse in der wissenschaftlichen Erforschung von Pflanzen und Kulturpflanzen Anwendung finden. Dieses Buch ist für Pflanzenbiologen, Biologen, die sich mit Stressfaktoren beschäftigen, Forscher im Bereich Pflanzenbiotechnologie, Studenten und Dozenten überaus nützlich.

Heat Shock Proteins in Signaling Pathways
Heat Shock Proteins in Signaling Pathways

Author: Alexzander A. A. Asea

Publisher:

Published: 2019

Total Pages: 482

ISBN-13: 9783030039530

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This edited volume offers an insightful overview of contemporary research on signaling pathways. These signaling processes are the comprehensive mechanisms by which all cellular organisms communicate internally and externally with their microenvironment. The volume is focused on heat shock proteins (HSP), which are uniquely involved in a number of critical signaling pathways. Errors in signaling pathways and in the processing of cellular information are known to be responsible for the majority of diseases including cancer, inflammatory and neurological disorders. The knowledge gained from better understanding these mechanisms can help in elucidating disease processes and will assist in development and design of novel targeted treatment therapies to combat human diseases and disorders. Key basic and clinical research laboratories from major universities, academic medical hospitals, biotechnology and pharmaceutical laboratories around the world have contributed chapters that review present research activity and importantly project the field into the future. The book is a must read for graduate students. medical students, basic science researchers and postdoctoral scholars in the fields of Translational Medicine, Clinical Research, Human Physiology, Biotechnology, Cell & Molecular Medicine, Pharmaceutical Scientists and Researchers involved in Drug Discovery.

Oxidative Stress
Oxidative Stress

Author: Helmut Sies

Publisher: Academic Press

Published: 2019-11-07

Total Pages: 878

ISBN-13: 0128196963

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Oxidative Stress: Eustress and Distress presents current knowledge on oxidative stress within the framework of redox biology and translational medicine. It describes eustress and distress in molecular terms and with novel imaging and chemogenetic approaches in four sections: - A conceptual framework for studying oxidative stress. - Processes and oxidative stress responses. Signaling in major enzyme systems (oxidative eustress), and damaging modification of biomolecules (oxidative distress). - The exposome addresses lifelong exposure and impact on health, nutrient sensing, exercise and environmental pollution. - Health and disease processes, including ischemia-reperfusion injury, developmental and psychological disorders, hepatic encephalopathy, skeletal muscle disorders, pulmonary disease, gut disease, organ fibrosis, and cancer. Oxidative Stress: Eustress and Distress is an informative resource useful for active researchers and students in biochemistry, molecular biology, medicinal chemistry, pharmaceutical science, nutrition, exercise physiology, analytical chemistry, cell biology, pharmacology, clinical medicine, and environmental science. - Characterizes oxidative stress within the framework of redox biology, redox signaling, and medicine - Empowers researchers and students to quantify specific reactants noninvasively, identify redox biomarkers, and advance translational studies - Features contributions from international leaders in oxidative stress and redox biology research

Oxidative Damage to Plants
Oxidative Damage to Plants

Author: Parvaiz Ahmad

Publisher: Academic Press

Published: 2014-01-29

Total Pages: 666

ISBN-13: 0128004606

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With contributions that review research on this topic throughout the world, Oxidative Damage to Plants covers key areas of discovery, from the generation of reactive oxygen species (ROSs), their mechanisms, quenching of these ROSs through enzymatic and non-enzymatic antioxidants, and detailed aspects of such antioxidants as SOD and CAT. Environmental stress is responsible for the generation of oxidative stress, which causes oxidative damage to biomolecules and hence reduces crop yield. To cope up with these problems, scientists have to fully understand the generation of reactive oxygen species, its impact on plants and how plants will be able to withstand these stresses. - Provides invaluable information about the role of antioxidants in alleviating oxidative stress - Examines both the negative effects (senescence, impaired photosynthesis and necrosis) and positive effects (crucial role that superoxide plays against invading microbes) of ROS on plants - Features contributors from a variety of regions globally

Oxidative Stress and Redox Regulation
Oxidative Stress and Redox Regulation

Author: Ursula Jakob

Publisher: Springer Science & Business Media

Published: 2013-03-15

Total Pages: 488

ISBN-13: 9400757875

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Many physiological conditions such as host defense or aging and pathological conditions such as neurodegenerative diseases, and diabetes are associated with the accumulation of high levels of reactive oxygen species and reactive nitrogen species. This generates a condition called oxidative stress. Low levels of reactive oxygen species, however, which are continuously produced during aerobic metabolism, function as important signaling molecules, setting the metabolic pace of cells and regulating processes ranging from gene expression to apoptosis. For this book we would like to recruit the experts in the field of redox chemistry, bioinformatics and proteomics, redox signaling and oxidative stress biology to discuss how organisms achieve the appropriate redox balance, the mechanisms that lead to oxidative stress conditions and the physiological consequences that contribute to aging and disease.

Reactive Oxygen Species in Plants
Reactive Oxygen Species in Plants

Author: Vijay Pratap Singh

Publisher: John Wiley & Sons

Published: 2017-10-11

Total Pages: 611

ISBN-13: 1119324947

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Describes the basics of ROS metabolism in plants and examines the broad range of ROS signaling mechanisms New discoveries about the effects of reactive oxygen species (ROS) on plants have turned ROS from being considered a bane into a boon, because their roles have been discovered in many plant developmental processes as signaling molecules. This comprehensive book teaches about the role of ROS metabolism in plants and how they affect various developmental processes. It also discusses in detail the advancements made in understanding the ROS signaling. Reactive Oxygen Species in Plants: Boon Or Bane - Revisiting the Role of ROS begins by presenting the basic introduction to ROS and deciphers the detailed knowledge in ROS research. It then examines the broad range of ROS signaling mechanisms as well as how they may be beneficial for plants and human beings. This book also describes both the bane and boon aspects of ROS with their impact on plants, and how the recent revelations have compelled us to rethink ROS turning from stressors to plant regulators. ● Compiles, for the first time, the wholesome knowledge in ROS research and their cellular signaling ● Includes new discoveries and in-depth discussions about the advancements made in the field ● Discusses reactive oxygen species which are involved in a broad range of biological processes Reactive Oxygen Species in Plants: Boon Or Bane - Revisiting the Role of ROS will help scientists to utilize the functions of ROS signaling for plants and also enable readers to gain a deeper knowledge of ROS research and signaling. It is highly recommended for researchers, scientists, and academicians in plant science as well for advanced undergraduate and postgraduate students.

Antioxidants and Antioxidant Enzymes in Higher Plants
Antioxidants and Antioxidant Enzymes in Higher Plants

Author: Dharmendra K. Gupta

Publisher: Springer

Published: 2018-03-10

Total Pages: 306

ISBN-13: 3319750887

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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.