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Tolerance, the ability of populations to cope with the chemical stress resulting from toxic contaminants, has been described in many organisms from bacteria to fungi, from phytoplankton to terrestrial flowering plants, and from invertebrates such as worms to vertebrates like fish and amphibians. The building of tolerance, be it by physiological acc
Phytotechnologies: Remediation of Environmental Contaminants highlights the use of natural and inherent traits of plants and associated microbes to exclude, accumulate, or metabolize a variety of contaminants, with the goal of efficiently and sustainably decontaminating the biosphere from unwanted hazardous compounds. Contributed by an international team of authors, the book ensures a balance between theory and practice without compromising the basic conceptual framework of Phytotechnologies. Divided into three major sections, the book: Introduces contaminants and contaminated sites, and also highlights the significance of genus Brassica and vetiver grass species for varied environmental contaminants’ remediation Presents an exhaustive exploration of potential strategies for enhancing plants and associated microbes-mediated environmental contaminants’ remediation Overviews major physiological, biochemical, and genetic-molecular mechanisms responsible for plant tolerance and adaptation to varied environmental contaminants A one-stop source of cutting edge answers and time-saving access, Phytotechnologies: Remediation of Environmental Contaminants is a common platform for engineers, environmental microbiologists, plant physiologists, and molecular biologists with the common aim of sustainable solutions to vital environmental issues. In short, the book provides a conceptual overview of ecosystems approaches and phytotechnologies, and their cumulative significance in relation to various environmental problems and potential solutions.
Environmental contaminants are chemicals that accidentally or deliberately enter the environment, often, but not always, as a result of human activities. Some of these contaminants may have been manufactured for industrial use, and because they are very stable, they do not break down easily. If released to the environment, these contaminants may enter the food chain. Other environmental contaminants are naturally occurring chemicals, but industrial activity may increase their mobility or increase the amount available to circulate in the environment, allowing them to enter the food chain at higher levels than would otherwise occur. Environmental contaminants influence the physiological cell reactions at different and heterogeneous basics and lead to altering in normal cell function primarily at the molecular and biochemical level. Molecular responses to such common environmental stresses have been studied intensively over the last few years, in which there is an intricate network of signaling pathways controlling perception of these environmental stress signals, the generation of second messengers and signal transduction. Recent advances in many areas of plant and microbial research, including genotyping, make scientists optimistic that valuable solutions will be found to allow deployment/commercialization of strategies better able to tolerate these environmental stresses. Environmental remediation was historically viewed as an inherently sustainable activity, as it restores contamination; however, researchers and practitioners are increasingly recognizing that there can be substantial environmental footprints and socioeconomic costs associated with remediation. Sustainability is an imperative in the emerging green and sustainable remediation movement, which is reshaping the entire remediation industry. Understanding the significant roles of sustainable or eco-friendly approaches in mitigating environmental contaminants, the current subject has recently attracted the attention of scientists from across the globe. This comprehensive volume “Sustainable Management of Environmental Contaminants: Eco-friendly Remediation Approaches" highlights the various prospects involved in current scenario. The current volume comprises the chapters from diverse areas dealing with biotechnology, microbial technology, nanotechnology, molecular biology, green and sustainable remediation, etc. I am hopeful that this volume will furnish the requisite of all those who are working or have interest in the current topic.
This book provides an account of the major environmental contaminations present today, and offers detailed insights into their potential remediation through bio-based solutions. Bringing together the work of various international experts in this field, it contains comprehensive reviews on the mechanisms of bioremediation. Moreover, the book discusses the strategies by which bacteria and plants help in the decontamination of environmental pollutants. As such, it represents a valuable resource for a wide audience, including environmental scientists, biochemists, soil scientists, botanists, agronomists and molecular biologists.
This book details the plant-assisted remediation method, “phytoremediation”, which involves the interaction of plant roots and associated rhizospheric microorganisms for the remediation of soil contaminated with high levels of metals, pesticides, solvents, radionuclides, explosives, crude oil, organic compounds and various other contaminants. Each chapter highlights and compares the beneficial and economical alternatives of phytoremediation to currently practiced soil removal and burial practices.
Abstract: The Office of Technology Assessment presents an evaluation of federal and state efforts to control environmental contamination of food by organic chemicals, metals and radioactive substances. Economic impacts are enormous, not only in food loss but health costs. The only sure method of preventing contamination is to prevent release of toxic substances into the environment. The Food and Drug Administration is responsible on the interstate level for identifying and regulating environmental contaminants, which is done by setting tolerance or action levels. However, no policy exists which defines the balance of health hazards, and problems are aggravated by the complexity of the food industry, and lack of coordination by various agencies. Options for the future are to continue in the present mode; amend the Food, Drug and Cosmetic Act to deal specifically with the issues; establish an investigating and monitoring system; and improve federal response to problems.
With its 104 chapters, this Encyclopedia of aquatic ecotoxicology reveals the diversity of issues, problems and challenges that have faced, and are facing today, receiving environments. It also indicates ways by which tools, strategies and future investigations can contribute to correct, minimize, solve and prevent water quality degradation. Structured homogeneously, the chapters convey salient information on historical background, features, characteristics, uses and/or applications of treated topics, often complemented by illustrations and case studies, as well as by conclusions and prospects. This work is most suitable for teaching purposes. Academics, for example, could literally deliver comprehensive lectures to students simply based on chapter outlines and contents. Meet the Authors of the Encyclopedia! Check out 'Meet the Authors' under ADDITIONAL INFORMATION (Right menu).
Aquatic Contamination Authoritative resource presenting techniques and technologies to sustainably neutralize environmental contamination in aquatic plants, microorganisms, and more Two thirds of the Earth is covered with aquatic habitats that play a key role in stabilizing the global environment and providing a wide variety of services to increasing human needs. Nevertheless, anthropogenic activities are rapidly destroying the quality of both fresh and marine waters globally, due to excessive use of chemicals, fertilizers and pollution from suburban and industrial areas eventually making their way into the aquatic world. Aquatic Contamination: Tolerance and Bioremediation presents the broader spectrum of biological applicability of microbes with better understanding of cellular mechanisms for remediation of aquatic contaminants. The book also focuses on practices involved in molecular and genetic approaches, necessary to achieve targets of bioremediation and phytoremediation to solve global water contamination problems. Such approaches pave the way for the utilization of biological assets to design new, efficient, and environmentally sound remediation strategies by inculcating genomic techniques at cellular and molecular levels with model assessment. Aquatic Contamination provides a comprehensive background for readers interested in all perspectives of the contamination of aquatic environs. It covers various research aspects which are being carried out globally to understand simulation models in the assessment of xenobiotics, role of genomics, transgenic plants, and microbial enzymes for degradation and removal of toxic substances in aquatic environs. Key features include: Extensive coverage of interactions between plants, metals and microbes including the influence of biotic and abiotic factors Comprehensive discussion of the details of molecular mechanisms from assimilation to detoxification levels Exploration of the enzymatic approaches of potential plants acting as hyper-accumulators for contaminants in aquatic environs Details of sustainable tools such as transgenic plants for the manipulation of important functional microbial genes to achieve higher certainty of bioremediation Details of advances in tools and models like micro-arrays and simulation models for the complete assessment of xenobiotic compounds from cellular to degradation hierarchies Aquatic Contamination: Tolerance and Bioremediation will be substantially helpful to environmentalists, microbiologists, biotechnologists and scientists, providing essential information on various modern technologies for the remediation of contaminants in aquatic ecosystems.