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Metals And Micronutrients

Author: D.A. Robb
Publisher: Academic Press
ISBN: 1483289044
Size: 16.59 MB
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Metals and Micronutrients: Uptake and Utilization by Plants contains the contributions of invited speakers at 1981 Easter meeting of the Phytochemical Society of Europe. The meeting brings together chemists, biochemists, physiologists, and agronomists to discuss aspects of phytometallurgy-how plants extract,accumulate, and use metals. The order of chapters in this book is meant to emphasize stages in the sequence, that is, uptake-incorporation-function. This book first describes the process of absorption of metals and micronutrients in plants, as well as the influences of the environment. This text then talks about the aspects of the movement and storage of iron and its incorporation into prosthetic groups. Some ways in which metals are involved in physiological and metabolic processes in plants are explained. This reference material will be valuable to senior undergraduates and postgraduates in this field of interest.

Advances In Plant Physiology Vol 13

Author: Hemantaranjan, A.
Publisher: Scientific Publishers
ISBN: 9386347377
Size: 48.22 MB
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The plant physiology and plant molecular biology research group has evidently endorsed the new directions taken by the treatise to attract the pre-eminent scientists in plant biology/plant sciences. Certainly, the preparation of Volume 13 of the International Treatise Series on Advances in Plant Physiology has been done entirely due to commendable contributions from Scientists of Eminence in unequivocal fields. Unquestionably, our objective is to publish innovative science of value across the broad disciplinary range of the treatise. I restate that this plan has been undertaken with a view to strengthen the indistinguishable efforts to recognize the outcome of meticulous research in some of the very sensible and stirring areas of Plant Physiology-Plant Molecular Physiology/ Biology-Plant Biochemistry for holistic development of the science of agriculture and crop production under changing climate. I am ardent to keep on the exceptionality and the prologue of excellent new ideas ensuring that the treatise calls to the best science done across the full extent of modern plant biology, in general, and plant physiology, in particular. In Volume 13, with inventive applied research, attempts have been made to bring together much needed eighteen review articles by forty-eight contributors especially from premier institutions of India for this volume. All the eighteen review articles have been grouped in five broad sections, which on the whole highlight the necessity to find out evidence from the fields of plant nutriophysiology (physiology of plant mineral nutrients) and abiotic stresses under changing climate along with their control.

Soil Plant Relationships

Author: D.W. Jeffrey
Publisher: Springer Science & Business Media
ISBN: 9401160767
Size: 75.68 MB
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Soil-plant relationships once had a limited meaning. To the student of agriculture it meant creating optimum conditions for plant growth. To the ecologist it meant explaining some plant community distribu tion patterns by correlation with soil type or conditions. This dual view has been greatly expanded at an academic level by the discovery of the ecosystem as a practical working unit. A flood of concepts and information subsequently emerged from the International Biological Programme. At a totally different level of resolution, it is appreciated that certain soil-based ecological problems have a molecular basis, and must be addressed by physiological or biochemical approaches. From ecosystem to molecule we have powerful new tools to increase the flow of ecological data and process it for interpretation. Society is now experiencing a series of adverse global phenomena which demand an appreciation of soil-plant relationships. These include desertification leading to famine, soil degradation accom panying forest destruction, acidification of watersheds and the spasmodic dispersal of radionuclides and other pollutants. It is public policy, not merely to identify problems, but to seek strategies for minimising their ill effects. This book is written as a guide to soil-plant relationships, cen trally oriented towards ecology, but of interest to students of geo graphy and agriculture. For ecology students it will bring together subfields such as microbiology, plant physiology, systematics and pro vide interfaces with animal biology, meteorology and soil science.

Toxic Metals In Soil Plant Systems

Author: S. M. Ross
Publisher: Wiley-Blackwell
ISBN: 9780471942795
Size: 18.65 MB
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While not all metals in Soil--plant systems are inherently toxic, particularly in low concentrations, there is an increasing incidence of metal pollution from aerial fallout, spoils, wastes and agricultural amendments including sewage sludge. Toxic Metals in Soil--Plant Systems discusses the processes of trace-metal cycling in contaminated ecosystems under conditions where their concentrations become toxic through high loading rates, long-term exposure or altered environmental conditions. Other environmental and pedological concentration mechanisms are discussed, including cation exchange and anion adsorption onto different soil materials. The book is divided into two sections; the first part discusses the sources and fates of metals in ecosystems, with an up-to-date review of the processes which control metal speciation in soils, metal uptake mechanisms, and plant responses to toxic metal concentrations in soils. A clear understanding of these processes and their interactions in soil is necessary before it is possible to instigate amelioration and restoration programmes for metal-contaminated land. In the second part of the book, a selection of case studies are presented which discuss metal toxicities and metal cycling in a range of different ecosystems, including managed agricultural systems, deciduous woodland, upland heather moorland, and tropical wetlands. In these studies a number of current issues are addressed, including the setting of toxicity thresholds for safe sewage sludge application to agricultural land, the accumulation of soil metals over time in aerially impacted systems, and metal transfers between ecosystem compartments, which are of particular concern in food crops. Providing an integrated view of toxic metals both in the soil and associated growing plants, this book covers a wide range of topics including agriculture, soil science, ecology and forestry and will be of use to researchers and environmental consultants working in these fields.