The microbial nitrogen cycle

The microbial nitrogen cycle PDF Author: Bess B Ward
Publisher: Frontiers Media SA
ISBN: 2889194124
Category : Microbial ecology
Languages : en
Pages : 175

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Book Description
Nitrogen is an essential element in biological systems, and one that often limits production in both aquatic and terrestrial systems. Due to its requirement in biological macromolecules, its acquisition and cycling have the potential to structure microbial communities, as well as to control productivity on the ecosystem scale. In addition, its versatile redox chemistry is the basis of complex biogeochemical transformations that control the inventory of fixed nitrogen, both in local environments and over geological time. Although many of the pathways in the microbial nitrogen cycle were described more than a century ago, additional fundamental pathways have been discovered only recently. These findings imply that we still have much to learn about the microbial nitrogen cycle, the organisms responsible for it, and their interactions in natural and human environments. Progress in nitrogen cycle research has been facilitated by recent rapid technological advances, especially in genomics and isotopic approaches. In this Research Topic, we reviewed the leading edge of nitrogen cycle research based on these approaches, as well as by exploring microbial processes in modern ecosystems.

The microbial nitrogen cycle

The microbial nitrogen cycle PDF Author: Bess B Ward
Publisher: Frontiers Media SA
ISBN: 2889194124
Category : Microbial ecology
Languages : en
Pages : 175

Get Book

Book Description
Nitrogen is an essential element in biological systems, and one that often limits production in both aquatic and terrestrial systems. Due to its requirement in biological macromolecules, its acquisition and cycling have the potential to structure microbial communities, as well as to control productivity on the ecosystem scale. In addition, its versatile redox chemistry is the basis of complex biogeochemical transformations that control the inventory of fixed nitrogen, both in local environments and over geological time. Although many of the pathways in the microbial nitrogen cycle were described more than a century ago, additional fundamental pathways have been discovered only recently. These findings imply that we still have much to learn about the microbial nitrogen cycle, the organisms responsible for it, and their interactions in natural and human environments. Progress in nitrogen cycle research has been facilitated by recent rapid technological advances, especially in genomics and isotopic approaches. In this Research Topic, we reviewed the leading edge of nitrogen cycle research based on these approaches, as well as by exploring microbial processes in modern ecosystems.

Microbial Control of the Nitrogen Cycle

Microbial Control of the Nitrogen Cycle PDF Author: Lourdes Girard
Publisher: Frontiers Media SA
ISBN: 2889638162
Category :
Languages : en
Pages : 213

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Book Description


Nitrogen in the Marine Environment

Nitrogen in the Marine Environment PDF Author: Edward J. Carpenter
Publisher: Elsevier
ISBN: 1483288293
Category : Science
Languages : en
Pages : 919

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Book Description
Nitrogen in the Marine Environment provides information pertinent to the many aspects of the nitrogen cycle. This book presents the advances in ocean productivity research, with emphasis on the role of microbes in nitrogen transformations with excursions to higher trophic levels. Organized into 24 chapters, this book begins with an overview of the abundance and distribution of the various forms of nitrogen in a number of estuaries. This text then provides a comparison of the nitrogen cycling of various ecosystems within the marine environment. Other chapters consider chemical distributions and methodology as an aid to those entering the field. This book discusses as well the enzymology of the initial steps of inorganic nitrogen assimilation. The final chapter deals with the philosophy and application of modeling as an investigative method in basic research on nitrogen dynamics in coastal and open-ocean marine environments. This book is a valuable resource for plant biochemists, microbiologists, aquatic ecologists, and bacteriologists.

Research on Nitrification and Related Processes, Part A

Research on Nitrification and Related Processes, Part A PDF Author: Martin G. Klotz
Publisher: Academic Press
ISBN: 0123812941
Category : Reference
Languages : en
Pages : 602

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Book Description
State-of-the-art update on methods and protocols dealing with the detection, isolation and characterization of macromolecules and their hosting organisms that facilitate nitrification and related processes in the nitrogen cycle as well as the challenges of doing so in very diverse environments. Provides state-of-the-art update on methods and protocols Deals with the detection, isolation and characterization of macromolecules and their hosting organisms Deals with the challenges of very diverse environments

Metagenomics of the Microbial Nitrogen Cycle

Metagenomics of the Microbial Nitrogen Cycle PDF Author: Diana Marco
Publisher: Caister Academic Press Limited
ISBN: 9781908230485
Category : Science
Languages : en
Pages : 0

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Book Description
The nitrogen (N) cycle is one of the most important nutrient cycles on the planet, and many of its steps are performed by microbial organisms. During the cycling process, greenhouse gases are formed, including nitrous oxide and methane. In addition, the use of nitrogen fertilizers increases freshwater nitrate levels, causing pollution and human health problems. A greater knowledge of the microbial communities involved in nitrogen transformations is necessary to understand and counteract nitrogen pollution. This book - written by renowned researchers who are specialized in the most relevant and emerging topics in the field - provides comprehensive information on the new theoretical, methodological, and applied aspects of metagenomics and other 'omics' approaches used to study the microbial N cycle. The book provides a thorough account of the contributions of metagenomics to microbial N cycle background theory. It also reviews state-of-the-art investigative methods and explores new applications in water treatment, agricultural practices, climate change, among others. The book is recommended for microbiologists, environmental scientists, and anyone interested in microbial communities, metagenomics, metatranscriptomics, and metaproteomics of the microbial N cycle.

Nitrogen Cycling in Bacteria

Nitrogen Cycling in Bacteria PDF Author: James W. B. Moir
Publisher: Caister Academic Press Limited
ISBN: 9781904455868
Category : Science
Languages : en
Pages : 0

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Book Description
This book aims to provide comprehensive reviews of current nitrogen cycle research and to give a broader perspective on the state of our understanding of this key biogeochemical cycle. With contributions from expert authors from around the world, topics covered include: the archaean N-cycle; redox complexes N-cycle; organisation of respiratory chains in N-cycle processes; Mo-nitrogenase; nitrogen assimilation in bacteria; alternative routes to dinitrogen; nitrite and nitrous oxide reductases; assembly of respiratory proteins; nitric oxide metabolism; denitrification in legume-associated endosymbiotic bacteria; nitrous oxide production in the terrestrial environment; bacterial nitrogen cycling in humans.

The European Nitrogen Assessment

The European Nitrogen Assessment PDF Author: Mark A. Sutton
Publisher: Cambridge University Press
ISBN: 1139501372
Category : Science
Languages : en
Pages : 665

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Book Description
Presenting the first continental-scale assessment of reactive nitrogen in the environment, this book sets the related environmental problems in context by providing a multidisciplinary introduction to the nitrogen cycle processes. Issues of upscaling from farm plot and city to national and continental scales are addressed in detail with emphasis on opportunities for better management at local to global levels. The five key societal threats posed by reactive nitrogen are assessed, providing a framework for joined-up management of the nitrogen cycle in Europe, including the first cost-benefit analysis for different reactive nitrogen forms and future scenarios. Incorporating comprehensive maps, a handy technical synopsis and a summary for policy makers, this landmark volume is an essential reference for academic researchers across a wide range of disciplines, as well as stakeholders and policy makers. It is also a valuable tool in communicating the key environmental issues and future challenges to the wider public.

Nitrogen Fixation

Nitrogen Fixation PDF Author: John Raymond Postgate
Publisher: Cambridge University Press
ISBN: 9780521648530
Category : Science
Languages : en
Pages : 124

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Book Description
This book provides an introductory-level survey of biological nitrogen fixation, covering the role of the process in the global nitrogen cycle as well as its biochemistry, physiology, genetics, ecology, general biology and prospects for its future exploitation.

Nitrification

Nitrification PDF Author: Bess B. Ward
Publisher: American Society for Microbiology Press
ISBN: 1555814816
Category : Science
Languages : en
Pages : 610

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Book Description
A full review of the latest research findings on microbes involved in conventional aerobic nitrification, anaerobic ammonia oxidation, and related processes. • Examines the four principal groups of nitrifying microbes including conventional aerobic bacterial ammonia oxidizers, recently discovered aerobic archaeal ammonia oxidizers, anaerobic ammonia-oxidizing planctomycetes, and nitrite-oxidizing bacteria. • Provides current information on the ecology, phylogeny, biochemistry, molecular biology, and genomics of each group of microbes. • Discusses the latest industrial applications of nitrification and anammox processes, and explores the ecology of nitrification in marine, freshwater, soil, and wastewater environments.

Nitrogen Fixation in Agriculture, Forestry, Ecology, and the Environment

Nitrogen Fixation in Agriculture, Forestry, Ecology, and the Environment PDF Author: Dietrich Werner
Publisher: Springer Science & Business Media
ISBN: 1402035446
Category : Technology & Engineering
Languages : en
Pages : 361

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Book Description
Sustainability has a major part to play in the global challenge of continued development of regions, countries, and continents all around the World and biological nitrogen fixation has a key role in this process. This volume begins with chapters specifically addressing crops of major global importance, such as soybeans, rice, and sugar cane. It continues with a second important focus, agroforestry, and describes the use and promise of both legume trees with their rhizobial symbionts and other nitrogen-fixing trees with their actinorhizal colonization. An over-arching theme of all chapters is the interaction of the plants and trees with microbes and this theme allows other aspects of soil microbiology, such as interactions with arbuscular mycorrhizal fungi and the impact of soil-stress factors on biological nitrogen fixation, to be addressed. Furthermore, a link to basic science occurs through the inclusion of chapters describing the biogeochemically important nitrogen cycle and its key relationships among nitrogen fixation, nitrification, and denitrification. The volume then provides an up-to-date view of the production of microbial inocula, especially those for legume crops.