This book provides extensive and comprehensive information to researchers and academicians who are interested in radionuclide contamination, its sources and environmental impact. It is also useful for graduate and undergraduate students specializing in radioactive-waste disposal and its impact on natural as well as manmade environments. A number of sites are affected by large legacies of waste from the mining and processing of radioactive minerals. Over recent decades, several hundred radioactive isotopes (radioisotopes) of natural elements have been produced artificially, including 90Sr, 137Cs and 131I. Several other anthropogenic radioactive elements have also been produced in large quantities, for example technetium, neptunium, plutonium and americium, although plutonium does occur naturally in trace amounts in uranium ores. The deposition of radionuclides on vegetation and soil, as well as the uptake from polluted aquifers (root uptake or irrigation) are the initial point for their transfer into the terrestrial environment and into food chains. There are two principal deposition processes for the removal of pollutants from the atmosphere: dry deposition is the direct transfer through absorption of gases and particles by natural surfaces, such as vegetation, whereas showery or wet deposition is the transport of a substance from the atmosphere to the ground by snow, hail or rain. Once deposited on any vegetation, radionuclides are removed from plants by the airstre am and rain, either through percolation or by cuticular scratch. The increase in biomass during plant growth does not cause a loss of activity, but it does lead to a decrease in activity concentration due to effective dilution. There is also systemic transport (translocation) of radionuclides within the plant subsequent to foliar uptake, leading the transfer of chemical components to other parts of the plant that have not been contaminated directly.

Cultural landscapes are a product ofthe interactions between humans and natural settings. They are landscapes and seascapes that are shaped by human history and land use. Socioeconomic processes especially, but also environmental changes and natural disturbances, are some of the forces that make up landscape dynamics. To understand and manage such complex landscapes, interdisciplinary and transdisciplinary approaches are necessary, emphasizing the integration of natural and social sciences and considering multiple landscape functions. The spatial patterns of Asian landscapes are strongly related to human activities and their impacts. Anthropogenic patterns and processes have created numerous traditional cultural landscapes throughout the region, and understanding them requires indigenous knowledge. Cultural landscape ecology from a uniquely Asian perspective is explored in this book, as are the management of landscapes and land-use policies. Human-dominated landscapes with long traditions, such as those described herein, provideuseful information for all ecologists, not only in Asia, to better understand the human environmental relationship and landscape sustainability. "

Experience shows that biotic stresses occur with different levels of intensity in nearly all agricultural areas around the world. The occurrence of insects, weeds and diseases caused by fungi, bacteria or viruses may not be relevant in a specific year but they usually harm yield in most years. Global warming has shifted the paradigm of biotic stresses in most growing areas, especially in the tropical countries, sparking intense discussions in scientific forums. This book was written with the idea of collecting in a single publication the most recent advances and discoveries concerning breeding for biotic stresses, covering all major classes of biotic challenges to agriculture and food production. Accordingly, it presents the state-of-the-art in plant stresses caused by all microorganisms, weeds and insects and how to breed for them. Complementing Plant Breeding for Abiotic Stress Tolerance, this book was written for scientists and students interested in learning how to breed for biotic stress scenarios, allowing them to develop a greater understanding of the basic mechanisms of resistance to biotic stresses and develop resistant cultivars.

This volume summarizes recent advances in our understanding of the mechanisms that produce successful symbiotic partnerships involving microorganisms. It begins with a basic introduction to the nature of and mechanistic benefits derived from symbiotic associations. Taking that background knowledge as the starting point, the next sections include chapters that examine representative examples of coevolutionary associations that have developed between species of microbes, as well as associations between microbes and plants. The authors conclude with a section covering a broad range of associations between microbes and invertebrate animals, in which they discuss the spectrum of hosts, with examples ranging from bryozoans and corals to nematodes, arthropods, and cephalopods. Join the authors on this journey of understanding!

Phytoplasmas are a group of bacteria that are capable of multiplying and causing severe diseases in a wide range of plant species and are transported between plants by insect vectors in which the bacteria can also multiply. Phytoplasmas can cause serious and devastating problems for crop plants, especially in developing countries. In Phytoplasmas: Methods and Protocols experts in the field cover topics pertinent to scientists intending to develop a research program on phytoplasmas. The volume opens with an introductory chapter on the importance of phytoplasma diseases, followed by methods for detection and diagnosis as well as techniques for separating and classifying the phytoplasmas into their different taxonomic groups and subgroups. The final chapters cover methods for separating phytoplasma genomic and plasmid DNA from plant DNA for whole genome sequencing. Written in the successful Methods in Molecular Biology (TM) series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Phytoplasmas: Methods and Protocols serves as an ideal guide to plant pathologists and molecular biologists aiming to set up a diagnostics facility for identifying the presence of these pathogens in plants or their insect vectors.

This volume presents the most recent studies on mRNA polyadenylation in plants. Chapters are divided into three sections covering recent development of the use of bioinformatics tools in the field. numerous molecular, biochemical, and methods used to characterize polyadenylation sites on a genome-wide scale. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls. Some are specific for plant research, but most can be adopted for research in other organisms. Authoritative and practical, Polyadenylation in Plants: Methods and Protocols provides scientists with a wide range of methods to study mRNA 3'-end formation in plants.

This volume focuses on various approaches to studying long non-coding RNAs (lncRNAs), including techniques for finding lncRNAs, localization, and observing their functions. The chapters in this book cover how to catalog lncRNAs in various plant species; determining subcellular localization; protein interactions; structures; and RNA modifications. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and innovative, Plant Long Non-Coding RNAs: Methods and Protocols is a valuable resource that aids researchers in understanding the functions of lncRNAs in different plant species, and helps them explore currently uncharted facets of plant biology.

This two-volume book is a valuable resource to students, researchers, scientists, commercial producers, consultants and policymakers interested in agriculture or plant sciences particularly in date palm biotechnology. Date Palm Biotechnology Protocols, Volume 1: Tissue Culture and Applications is comprised of 27 chapters covering adventitious organogenesis, somatic embryogenesis, contamination, hyperhydricity, acclimatization, cell suspension, protoplast and bioreactors, genetic transformation secondary metabolites, and abiotic stress. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Date Palm Biotechnology Protocols, Volume 1: Tissue Culture and Applications aims to supplement the previous volume and to provide precise stepwise protocols in the field of date palm biotechnology.

This three-book set is devoted to the prominent bays of the Western North America. The first volume describes San Francisco Bay - a shallow estuary surrounded by a large population center. The forces that built it began with plate tectonics and involved the collision of the Pacific and North American plates and the subduction of the Juan de Fuka plate. Gold mining during the California gold rush sent masses of slit into the Bay. The second volume is devoted to San Diego Bay, which is also a shallow estuary surrounded by a large human population center that influenced the Bay. The third volume describes Puget Sound - a different sort of bay - a complex fjord-estuary system, but also surrounded by several large population centers. The watershed is enormous, covering nearly 43,000 square kilometers with thousands of rivers and streams. Geological forces, volcanos, Ice Ages, and changes in sea levels make the Sound a biologically dynamic and fascinating environment, as well as a productive ecosystem. Key Features Summarizes a complex geological, geographical, and ecological history Reviews how the San Diego Bay has changed and will likely change in the future Examines the different roles of various drivers of Bay ecosystem function Includes the role of humans-both first people and modern populations-on the Bay Explores San Diego Bay as an example of general bay ecological and environmental issues

This volume illustrates the complex root system, including the various essential roles of roots as well as their interaction with diverse microorganisms localized in or near the root system.

Following initial chapters describing the anatomy and architecture as well as the growth and development of root systems, subsequent chapters focus on the various types of root symbiosis with bacteria and fungi in the rhizosphere. A third section covers the physiological strategies of roots, such as nitrate assimilation, aquaporins, the role of roots in plant defense responses and in response to droughts and salinity changes. The book s final chapters discuss the prospects of applied engineering of roots, i.e., inventing new root structures or functions through genetic modification, but also with conventional breeding and manipulation of root symbionts. The budding field of root engineering is expected to promote a second green revolution."

Steppes form one of the largest biomes. Drastic changes in steppe ecology, land use and livelihoods came with the emergence, and again with the collapse, of communist states. Excessive ploughing and vast influx of people into the steppe zone led to a strong decline in nomadic pastoralism in the Soviet Union and China and in severely degraded steppe ecosystems. In Mongolia nomadic pastoralism persisted, but steppes degraded because of strongly increased livestock loads. After the Soviet collapse steppes regenerated on huge tracts of fallow land. Presently, new, restorative steppe land management schemes are applied. On top of all these changes come strong effects of climate change in the northern part of the steppe zone. This book gives an up-to-date overview of changes in ecology, climate and use of the entire Eurasian steppe area and their effects on livelihoods of steppe people. It integrates knowledge that so far was available only in a spectrum of locally used languages.

This book highlights the advances in essential oil research, from the plant physiology perspective to large-scale production, including bioanalytical methods and industrial applications. The book is divided into 4 sections. The first one is focused on essential oil composition and why plants produce these compounds that have been used by humans since ancient times. Part 2 presents an update on the use of essential oils in various areas, including food and pharma industries as well as agriculture. In part 3 readers will find new trends in bioanalytical methods. Lastly, part 4 presents a number of approaches to increase essential oil production, such as in vitro and hairy root culture, metabolic engineering and biotechnology. Altogether, this volume offers a comprehensive look at what researchers have been doing over the last years to better understand these compounds and how to explore them for the benefit of the society.

Arabidopsis Protocols, Third Edition compiles some of the most recent methodologies developed to exploit the Arabidopsis genome. These methodologies cover from the guided access to public resources, to genetic, cell biology, biochemical and physiological techniques, including both those that are widely used as well as those novel techniques likely to open up new avenues of knowledge in the future. In addition, considering the recent unparalleled progress of the "omics" tools in Arabidopsis, leading experts have contributed sections on genome, transcriptome, proteome, metabolome and other whole-system approaches. Arabidopsis thaliana is acknowledged as the most important plant model system by the scientific community and Arabidopsis research has fundamentally influenced our understanding of the basic biology and ecology of plants. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Arabidopsis Protocols, Third Edition seeks to serve both experienced researchers and beginners with its detailed methodologies on this burgeoning scientific field.

This book describes various aspects of modern microbiology including microbial enzymes, secondary metabolites, next-generation sequencing, microbial-based biopesticides, microbial-based cancer therapies, biodiesel, and microbial products from fermentation, biodegradation, bioremediation and wastewater treatment. Further, it explains how and why microbes play an important role in preserving the welfare of living beings and the environment. Many bacteria play a significant part in cleaning our environment by detoxifying various xenobiotic compounds, while several microbes produce secondary metabolites that are useful to human beings. The book is divided into 15 chapters that cover various aspects of microorganism-based biotechnology, including recent methodologies such as advanced molecular techniques, as well developments in classical microbiological techniques. The authors also explain how the latest and classical techniques are being used in modern-day microbial biotechnology. All chapters were written by experts from prominent universities, research laboratories, and institutes around the globe. Above all, they focus on recent advances in microbial technology that promote the welfare of living beings and the environment.

Soil salinity is destroying several hectares of arable land every minute. Because remedial land management cannot completely solve the problem, salt tolerant crops or plant species able to remove excessive salt from the soil could contribute significantly to managing the salinity problem. The key to engineering crops for salt tolerance lies in a thorough understanding of the physiological mechanisms underlying the adaptive responses of plants to salinity. Plant Salt Tolerance: Methods and Protocols describes recent advances and techniques employed by researchers to understand the molecular and ionic basis of salinity tolerance and to investigate the mechanisms of salt stress perception and signalling in plants. With chapters written by leading international scientists, this book covers nearly 30 different methods, such as microelectrode and molecular methods, imaging techniques, as well as various biochemical assays. Written in the highly successful Methods in Molecular Biology (TM) series format, chapters contain introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Plant Salt Tolerance: Methods and Protocols serves as an essential read for every student or researcher tackling various aspects of the salinity problem.

The book focuses on the principles and practices of tropical maize improvement with special emphasis on early and extra-early maize to feed the increasing population in Sub-Saharan Africa. It highlights the similarities and differences between results obtained in temperate regions of the world and WCA in terms of corroboration or refutation of genetic principles and theory of maize breeding. The book is expected to be of great interest to maize breeders, advanced undergraduates, graduate students, professors and research scientists in the national and international research institutes all over the world, particularly Sub-Saharan Africa. It will also serve as a useful reference for agricultural extension and technology transfer systems, Non-governmental Organizations (NGOs) and Community-Based Organizations (CBOs), seed companies and community-based seed enterprises, policy makers, and all those who are interested in generating wealth from agriculture and alleviating hunger and poverty in Sub-Saharan Africa.

The aim of this manual is to provide a comprehensive guide to the methods involved in collecting, preparing and screening plants for bioactive properties for manipulating key ruminal fermentation pathways and against gastrointestinal pathogens. The manual will better equip the reader with methodological approaches to initiate screening programmes to test for bioactivity in native plants and find natural alternatives to chemicals for manipulating ruminal fermentation and gut health. The manual provides isotopic and non-isotopic techniques to efficiently screen plants or plant parts for a range of potential bioactives for livestock production. Each chapter has been contributed by experts in the field and methods have been presented in a format that is easily reproducible in the laboratory. It is hoped that this manual will be of great value to students, researchers and those involved in developing efficient and environmentally friendly livestock production systems."

This book presents the genetics and genomics of Jatropha, which is used for biofuel, and shows how plant genomics can be used to improve plant breeding. The utilization of plant biofuels is a promising solution to global issues such as the depletion of fossil fuels and resources and climate change. Jatropha curcas L. (jatropha) is a species of shrub belonging to the Euphorbiaceae family. Native to Mesoamerica, it is now grown widely in tropical and subtropical areas in America, Africa and Asia. The seed oil of Jatropha is a suitable source for biodiesel or bio jet fuel, and since it is not edible and can grow in semi-arid lands unsuitable for the cultivation of food crops, its production does not compete with that of food to inflate its price. The characteristics of this promising biofuel plant, however, have not been fully exploited in terms of breeding, mainly because of the lack of information on its genetics and genomics. The structure of the whole genome of Jatropha is analyzed, providing insights into on the plant's genetic system and accelerating the molecular breeding process.

New Zealand, with its long isolation from other lands and latitudes extending from subtropical to sub Antarctic, has a unique flora and highly diverse vegetation. This book is a comprehensive description of that vegetation, ranging from its origins to the major communities within which the plants exist. The text, supported by over 300 photographs, maps and diagrams, has made an outstanding contribution to the understanding of the biology of these islands. This is a reprint of the volume originally published in 1991. Chapters 1 - 4 describe the New Zealand environment, flora and fauna. They discuss the origin, relationships, life forms and reproductive aspects of the indigenous vegetation. Chapter 5 is a synopsis of vegetation types, habitat classes and environmental processes; it also serves to define the terms that are described in the book. Chapter 6 contains an outline of the geographic divisions of the country. Chapters 7 - 9 offer expanded descriptions of plant communities, preceded, where appropriate, by information on their structure and characteristic species and genera. The concluding chapters discuss ecologic functions and processes. Vegetation of New Zealand is an essential book for botanists, ecologists, conservationists and others who love New Zealand's plants, animals and landscapes. There will also be a large audience outside New Zealand. Its natural vegetation is unique; because of this and the longevity of its evolutionary history, it has always attracted considerable global interest. "The breadth of scholarship displayed by Peter Wardle is impressive. The book as a whole is remarkably readable; testimony to that comes from this reviewer who read all 672 pages in one day and was still captivated at the end " Annals of Botany "A simple title and a great achievement. This is a great book and a major achievement by the author. It will be a source book for many years to come." Vegetation "This book is a magnificent successor to Cockayne's original Vegetation in New Zealand." Biological Conservation

A subgroup of homeobox genes, which play an important role in the developmental processes of a variety of multicellular organisms, Hox genes have been shown to play a critical role in vertebrate pattern formation. Hox genes can be thought of as general purpose control genes that is, they are similar in many organisms and direct the same processes in a variety of organisms, from mouse, to fly, to human.
* Provides researchers an overview and synthesis of the latest research findings and contemporary thought in the area.
* Inclusion of chapters that discuss the evolutionary development of a wide variety of organisms.
* Gives researchers and clinicians insight into how defective Hox genes trigger developmental abnormalities in embryos.

This book summarizes the latest information and the status quo of radish genome studies to stimulate innovations and improvements in breeding techniques and to promote further advances in the field. Radish (Raphanus sativus) is a member of the Brassicaceae family and is cultivated worldwide. Its varieties have been diversified in terms of size, shape, and the color of their roots and bio-components. Thanks to the development of high-throughput molecular techniques using next generation sequencers, complete genomes of cultivated and wild radish plants have been sequenced and published with annotations of predicted genes and single nucleotide polymorphism (SNP) information between radish cultivars and accessions. These, together with the construction of a high-density genetic map of radish and profiling of expression sequences in radish organs, have accelerated genetic studies, such as the identification of genes or loci associated with root development, pungent components, and plant disease resistance. Providing an overview of these advances, this book is a valuable resource for scientists involved in plant genetic research and crop breeding.