Download or read book Physiological Mechanisms and Adaptation Strategies in Plants Under Changing Environment written by Parvaiz Ahmad and published by Springer Science & Business Media. This book was released on 2013-11-12 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global population is growing at an alarming rate and is anticipated to reach about 9.6 billion by the end of 2050. Addressing the problem of food scarcity for budding population vis-à-vis environmental changes is the main challenge plant biologists face in the contemporary era. Plant growth and productivity are scarce in many areas of the world due to a wide range of environmental stresses. The productive land is dwindling progressively by various natural and anthropogenic means that lead to enormous crop losses worldwide. Plants often experience these stresses and have the ability to withstand them. However, when the stress exceeds the normal tolerance level, plants accumulate organic osmolytes, osmoprotectants, cryoprotectants and antioxidant enzymes, which helps them tolerate these stresses and assist in their acclimatization towards the particular ambiance needed for maintaining their growth and development. Physiological Mechanisms and Adaptation Strategies in Plants Under Changing Environment, Volume 1 discuss drought and temperature stresses and their mitigation through different means. This volume illuminates how plants that are bombarded by diverse and changing environmental stimuli, undergo appropriate physiological alterations that enable their survival. The information covered in the book is also useful in building apposite strategies to counter abiotic and biotic stresses in plants. Written by a diverse group of internationally renowned scholars, Physiological Mechanisms and Adaptation Strategies in Plants Under Changing Environment, Volume 1 is a concise yet comprehensive resource that will be beneficial for the researchers, students, environmentalists and soil scientists of this field.
Download or read book Adaptive Mechanisms in the Ecology of Vision written by S. Archer and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: John Lythgoe was one of the pioneers of the 'Ecology of Vision', a subject that he ably delineated in his classic and inspirational book published some 20 years ago [1]. At heart, the original book aimed generally to identify inter-relationships between vision, animal behaviour and the environment. John Lythgoe excelled at identifying the interesting 'questions' in the ecology of an animal that fitted the 'answers' presented by an analysis of the visual system. Over the last twenty years, however, since Lythgoe's landmark publication, much progress has been made and the field has broadened considerably. In particular, our understanding of the 'adaptive mechanisms' underlying the ecology of vision has reached considerable depths, extending to the molecular dimension, partly as a result of development and application of new techniques. This complements the advances made in parallel in clinically oriented vision research [2]. The current book endeavours to review the progress made in the ecology of vision field by bringing together many of the major researchers presently active in the expanded subject area. The contents deal with theoretical and physical considerations of light and photoreception, present examples of visual system structure and function, and delve into aspects of visual behaviour and communi cation. Throughout the book, we have tried to emphasise one of the major themes to emerge within the ecology of vision: the high degree of adaptability that visual mechanisms are capable of undergoing in response to diverse, and dynamic, environments and behaviours.
Download or read book Bacteria A Treatise on Structure and Function V written by John Robert Sokatch and published by . This book was released on 1979 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Ecophysiology and Adaptation under Climate Change Mechanisms and Perspectives II written by Mirza Hasanuzzaman and published by Springer Nature. This book was released on 2020-06-01 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state-of-the-art in plant ecophysiology. With a particular focus on adaptation to a changing environment, it discusses ecophysiology and adaptive mechanisms of plants under climate change. Over the centuries, the incidence of various abiotic stresses such as salinity, drought, extreme temperatures, atmospheric pollution, metal toxicity due to climate change have regularly affected plants and, and some estimates suggest that environmental stresses may reduce the crop yield by up to 70%. This in turn adversely affects the food security. As sessile organisms, plants are frequently exposed to various environmental adversities. As such, both plant physiology and plant ecophysiology begin with the study of responses to the environment. Provides essential insights, this book can be used for courses such as Plant Physiology, Environmental Science, Crop Production and Agricultural Botany. Volume 2 provides up-to-date information on the impact of climate change on plants, the general consequences and plant responses to various environmental stresses.
Download or read book Adaptation to Life written by George E. Vaillant and published by Harvard University Press. This book was released on 2012-08-01 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 1939 and 1942, one of America's leading universities recruited 268 of its healthiest and most promising undergraduates to participate in a revolutionary new study of the human life cycle. The originators of the program, which came to be known as the Grant Study, felt that medical research was too heavily weighted in the direction of disease, and their intent was to chart the ways in which a group of promising individuals coped with their lives over the course of many years. Nearly forty years later, George E. Vaillant, director of the Study, took the measure of the Grant Study men. The result was the compelling, provocative classic, Adaptation to Life, which poses fundamental questions about the individual differences in confronting life's stresses. Why do some of us cope so well with the portion life offers us, while others, who have had similar advantages (or disadvantages), cope badly or not at all? Are there ways we can effectively alter those patterns of behavior that make us unhappy, unhealthy, and unwise? George Vaillant discusses these and other questions in terms of a clearly defined scheme of "adaptive mechanisms" that are rated mature, neurotic, immature, or psychotic, and illustrates, with case histories, each method of coping.
Download or read book Plant Adaptation Strategies in Changing Environment written by Vertika Shukla and published by Springer. This book was released on 2017-12-29 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the crucial aspects of plant adaptation strategies in higher as well as lower plant groups. Stress induced by changing environmental conditions disrupts or alter various physiological and metabolic processes in organisms, however, plants have evolved various defence strategies to cope with external perturbations. The book discusses speciation changes in response to extreme ecological conditions such as cold, heat, aridity, salinity, altitude, incidental UV radiation and high light intensity, which are particularly relevant in the current scenario of global warming. It also explores the effects of human activities and emission of phytotoxic gases. Further, it describes the overall adaptation strategies and the multifaceted mechanisms involved (integrated complex mechanism), ranging from morphological to molecular alterations, focusing on plants’ capabilities to create an inner environment to survive the altered or extreme conditions. This book is a valuable tool for graduate and research students, as well as for anyone working on or interested in adaptation strategies in plants.
Download or read book Physiology and Pathology of Adaptation Mechanisms Neural Neuroendocrine Humoral written by Eörs Bajusz and published by Pergamon. This book was released on 1969 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physiology and Pathology of Adaptation Mechanisms: Neural - Neuroendocrine - Humoral is a collection of papers that covers various aspects of the vital physiologic mechanisms involved in adaptive reactions. The title first covers the development of regulatory processes, and then proceeds to tackling the regulatory and adaptive functions of the pituitary-adrenocortical system. Next, the selection deals with the regulation of adaptive hormones, along with topics about adaptation to environmental temperature variation. The text also deals with the neural, neuroendocrine, and hormonal regulatory a ...
Download or read book Biochemical Adaptation written by Peter W. Hochachka and published by Oxford University Press. This book was released on 2002-01-17 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of biochemical adaption provides fascinating insights into how organisms "work" and how they evolve to sustain physiological function under a vast array of environmental conditions. This book describes how the abilities of organisms to thrive in widely different environments derive from two fundamental classes of biochemical adaptions: modifications of core biochemical processes that allow a common set of physiological functions to be conserved, and "inventions" of new biochemical traits that allow entry into novel habitats. Biochemical Adaptation: Mechanisms and Process in Physiological Evolution asks two primary questions. First, how have the core biochemical systems found in all species been adaptively modified to allow the same fundamental types of physiological processes to be sustained throughout the wide range of habitat conditions found in the biosphere? Second, through what types of genetic and biochemical processes have new physiological functions been fabricated? The primary audience for this book is faculty, senior undergraduates, and graduate students in environmental biology, comparative physiology, and marine biology. Other likely readers include workers in governmental laboratories concerned with environmental issues, medical students interested in some elements of the book, and medical researchers.
Download or read book Algal Adaptation to Environmental Stresses written by L.C. Rai and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Algae, generally held as the principal primary producers of aquatic systems, inhabit all conceivable habitats. They have great ability to cope with a harsh environment, e.g. extremely high and low temperatures, suboptimal and supraoptimal light intensities, low availability of essential nutrients and other resources, and high concentrations of toxic chemicals, etc. A multitude of physiological, biochemical, and molecular strategies enable them to survive and grow in stressful habitats. This book presents a critical account of various mechanisms of stress tolerance in algae, many of which may occur in microbes and plants as well.
Download or read book Genetics of Adaptation written by Rodney Mauricio and published by Springer Science & Business Media. This book was released on 2005-07-20 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: An enduring controversy in evolutionary biology is the genetic basis of adaptation. Darwin emphasized "many slight differences" as the ultimate source of variation to be acted upon by natural selection. In the early 1900’s, this view was opposed by "Mendelian geneticists", who emphasized the importance of "macromutations" in evolution. The Modern Synthesis resolved this controversy, concluding that mutations in genes of very small effect were responsible for adaptive evolution. A decade ago, Allen Orr and Jerry Coyne reexamined the evidence for this neo-Darwinian view and found that both the theoretical and empirical basis for it were weak. Orr and Coyne encouraged evolutionary biologists to reexamine this neglected question: what is the genetic basis of adaptive evolution? In this volume, a new generation of biologists have taken up this challenge. Using advances in both molecular genetic and statistical techniques, evolutionary geneticists have made considerable progress in this emerging field. In this volume, a diversity of examples from plant and animal studies provides valuable information for those interested in the genetics and evolution of complex traits.
Download or read book Adaptation and Natural Selection written by George Christopher Williams and published by Princeton University Press. This book was released on 2018-10-30 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological evolution is a fact—but the many conflicting theories of evolution remain controversial even today. When Adaptation and Natural Selection was first published in 1966, it struck a powerful blow against those who argued for the concept of group selection—the idea that evolution acts to select entire species rather than individuals. Williams’s famous work in favor of simple Darwinism over group selection has become a classic of science literature, valued for its thorough and convincing argument and its relevance to many fields outside of biology. Now with a new foreword by Richard Dawkins, Adaptation and Natural Selection is an essential text for understanding the nature of scientific debate.
Download or read book Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria written by Frans J. de Bruijn and published by John Wiley & Sons. This book was released on 2016-07-13 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bacteria in various habitats are subject to continuously changing environmental conditions, such as nutrient deprivation, heat and cold stress, UV radiation, oxidative stress, dessication, acid stress, nitrosative stress, cell envelope stress, heavy metal exposure, osmotic stress, and others. In order to survive, they have to respond to these conditions by adapting their physiology through sometimes drastic changes in gene expression. In addition they may adapt by changing their morphology, forming biofilms, fruiting bodies or spores, filaments, Viable But Not Culturable (VBNC) cells or moving away from stress compounds via chemotaxis. Changes in gene expression constitute the main component of the bacterial response to stress and environmental changes, and involve a myriad of different mechanisms, including (alternative) sigma factors, bi- or tri-component regulatory systems, small non-coding RNA’s, chaperones, CHRIS-Cas systems, DNA repair, toxin-antitoxin systems, the stringent response, efflux pumps, alarmones, and modulation of the cell envelope or membranes, to name a few. Many regulatory elements are conserved in different bacteria; however there are endless variations on the theme and novel elements of gene regulation in bacteria inhabiting particular environments are constantly being discovered. Especially in (pathogenic) bacteria colonizing the human body a plethora of bacterial responses to innate stresses such as pH, reactive nitrogen and oxygen species and antibiotic stress are being described. An attempt is made to not only cover model systems but give a broad overview of the stress-responsive regulatory systems in a variety of bacteria, including medically important bacteria, where elucidation of certain aspects of these systems could lead to treatment strategies of the pathogens. Many of the regulatory systems being uncovered are specific, but there is also considerable “cross-talk” between different circuits. Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria is a comprehensive two-volume work bringing together both review and original research articles on key topics in stress and environmental control of gene expression in bacteria. Volume One contains key overview chapters, as well as content on one/two/three component regulatory systems and stress responses, sigma factors and stress responses, small non-coding RNAs and stress responses, toxin-antitoxin systems and stress responses, stringent response to stress, responses to UV irradiation, SOS and double stranded systems repair systems and stress, adaptation to both oxidative and osmotic stress, and desiccation tolerance and drought stress. Volume Two covers heat shock responses, chaperonins and stress, cold shock responses, adaptation to acid stress, nitrosative stress, and envelope stress, as well as iron homeostasis, metal resistance, quorum sensing, chemotaxis and biofilm formation, and viable but not culturable (VBNC) cells. Covering the full breadth of current stress and environmental control of gene expression studies and expanding it towards future advances in the field, these two volumes are a one-stop reference for (non) medical molecular geneticists interested in gene regulation under stress.
Download or read book Webvision written by Helga Kolb and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surviving Hypoxia written by Peter W. Hochachka and published by CRC Press. This book was released on 2022-11-30 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surviving Hypoxia: Mechanisms of Control and Adaptation is a synthesis of findings and thoughts concerning hypoxia. The thermodynamics of hypoxia are discussed in detail, including acid-base balance and self-pollution resulting from the accumulation of anaerobic end-products. The book focuses on descriptions and discussions of common facets, contrasting solutions in a variety of physiological hypoxia defense strategies, including those shown by plants, invertebrates, and vertebrates. Special treatment is given to the distinctive problems that hypoxia presents to vulnerable organs such as the kidney, liver, and brain. It also addresses pathological events in addition to protective mechanisms. Clinical implications of basic research are examined in the book, which provides new insights into underlying pathological processes occuring in hypoxic-induced organ failure and indicates new paths for successful clinical intervention. Surviving Hypoxia: Mechanisms of Control and Adaptation is an excellent reference for all researchers interested in the physiological effects of hypoxia, underlying pathological events, and protective mechanisms.
Download or read book Interactions and Adaptation Strategies of Marine Organisms written by Andrew D. Naumov and published by Springer Science & Business Media. This book was released on 1997-12-31 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a refereed selection of the proceedings of the 31st European Marine Biology Symposium, held in St. Petersburg, Russia, in September 1996. State-of-the-art reviews and studies on adaptational processes in marine organisms such as adaptations to fluctuations in salinity, temperature, oxygen and pollutants which are reflected in different types of ecophysiological responses and interactions of marine organisms, including predation, parasitism, intraspecific competition and epibiosys were presented at the symposium proceedings. Research from both eastern and western Europe contributed to this project and during the symposium differences in scientific approaches and views between these two groups became apparent. The contents of this volume reflect these differences. Researchers and students in marine biology as well as those involved in coastal management and environmental studies will find this volume of interest.
Download or read book Eckert Animal Physiology written by David J. Randall and published by Macmillan. This book was released on 2002 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic animal physiology text focuses on comparative examples that illustrate the general principles of physiology at all levels of organisation—from molecular mechanisms to regulated physiological systems to whole organisms in their environment. This textbook is an authoritative and complete guide to the field of animal physiology which uses a threefold approach to teaching. The Comparative Approach emphasises basic mechanisms but allows patterns of physiological function in different species to demonstrate how evolution creates diversity. This approach encourages students to appreciate the underlying principles that govern physiological systems. The Experimental Emphasis helps students to understand the process of scientific discovery and shows how our knowledge of physiology continually increases and finally the Integrative Approach presents information about specific physiological systems at all levels of organisation, from molecular interactions to interactions between an organism and its environment.n included.
Download or read book Psychopathology of Human Adaptation written by George Serban and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Undoubtedly this symposium will prove to be an important landmark in the development of our understanding of the psychopathology of human adaptation in general, as well as of the general adaptation syndrome and stress in particular. It was organized to give an opportunity to an international group of experts on adaptation and stress research to present summaries of their research that could then later be exhaustively analyzed. The carefully structured program brings out three major aspects of adapta tion to stress in experimental animals and man. The first section deals with the neurophysiology of stress responses, placing major emphasis upon the neuroanatomical and neurochemical aspects involved. The second section is devoted to the psychology and psychopathology of adaptive learning, motivation, anxiety, and stress. The third section examines the role played by stress in the pathogenesis of mental diseases. Many of the relevant subjects receive particularly detailed attention. Among these, the following are especially noteworthy: The existence of reward and drive neurons. Constitutional differences in physiological adaptations to stress and d- tress. Motivation, mood, and mental events in relation to adaptive processes. Peripheral catecholamines and adaptation to underload and overload. Selective corticoid and catecholamine responses to various natural stimuli. The differentiation between eustress and distress. Resistance and overmotivation in achievement-oriented activity. The dynamics of conscience and contract psychology. Sources of stress in the drive for power. Advances in the therapy of psychiatric illness. The application of experimental studies on learning to the treatment of neuroses.
