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The Role Of Carbon And Nitrogen Metabolism In The Regulation Of Nitrogen Fixation In Rhizobium Meliloti
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Book Synopsis The Role of Carbon and Nitrogen Metabolism in the Regulation of Nitrogen Fixation in Rhizobium Meliloti by : Brian Noonan
Download or read book The Role of Carbon and Nitrogen Metabolism in the Regulation of Nitrogen Fixation in Rhizobium Meliloti written by Brian Noonan and published by . This book was released on 1992 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen-fixing Leguminous Symbioses by : Michael J. Dilworth
Download or read book Nitrogen-fixing Leguminous Symbioses written by Michael J. Dilworth and published by Springer Science & Business Media. This book was released on 2008-01-18 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nodules produced on legume roots by root-nodule bacteria provide the major nitrogenous input into natural and agricultural systems worldwide. This book provides an in-depth and up-to-the-minute analysis of what is known about this symbiosis, its origins, the process of nodule formation and development, and the biochemistry and genetics of nodular nitrogen fixation. It also reviews the physiology of the root-nodule bacteria themselves, their ecology in both natural and agricultural systems, and how we can introduce new legumes along with the bacteria they require. This book is recommended for scientists working with root nodule bacteria or host legumes, agronomists, forestry scientists, and soil scientists.
Book Synopsis Symbiotic Nitrogen Fixation by : P. Graham
Download or read book Symbiotic Nitrogen Fixation written by P. Graham and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past three decades there has been a large amount of research on biological nitrogen fixation, in part stimulated by increasing world prices of nitrogen-containing fertilizers and environmental concerns. In the last several years, research on plant--microbe interactions, and symbiotic and asymbiotic nitrogen fixation has become truly interdisciplinary in nature, stimulated to some degree by the use of modern genetic techniques. These methodologies have allowed us to make detailed analyses of plant and bacterial genes involved in symbiotic processes and to follow the growth and persistence of the root-nodule bacteria and free-living nitrogen-fixing bacteria in soils. Through the efforts of a large number of researchers we now have a better understanding of the ecology of rhizobia, environmental parameters affecting the infection and nodulation process, the nature of specificity, the biochemistry of host plants and microsymbionts, and chemical signalling between symbiotic partners. This volume gives a summary of current research efforts and knowledge in the field of biological nitrogen fixation. Since the research field is diverse in nature, this book presents a collection of papers in the major research area of physiology and metabolism, genetics, evolution, taxonomy, ecology, and international programs.
Book Synopsis Nitrogen Fixation: Fundamentals and Applications by : Igor A. Tikhonovich
Download or read book Nitrogen Fixation: Fundamentals and Applications written by Igor A. Tikhonovich and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fixation research is presented as a rapidly developing, synergistic area of modern science, using the methods of, and accumulating data from, many fundamental branches of biology and chemistry. These include catalytic mechanisms, protein structure and function, molecular organization of genes and the regulation of their activities, biochemistry of plants and microorganisms, the signalling and surface interactions between organisms, microbial taxonomy and evolution, formal and population genetics, and ecology. The relationships between biological nitrogen fixation research and different branches of applied biology are addressed and analyzed, such as: the monitoring of genetically engineered microorganisms, selection of plant-associated microbes, plant breeding, increasing the protein content of crops, providing ecologically safe food production, and diminishing the chemical pollution of the environment. Immediate impacts and long-term prospects for nitrogen fixation research are presented: both fundamentals and applications.
Book Synopsis Highlights of Nitrogen Fixation Research by : Esperanza Martínez
Download or read book Highlights of Nitrogen Fixation Research written by Esperanza Martínez and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: For 31 years, the North American Symbiotic Nitrogen Fixation Conference (for merly Rhizobium Conference) has been a forum for scientists and graduate students to discuss their research advances, extending from basic aspects to agricultural appli cations, and dealing with topics ranging from bacterial genetics and metabolism to plant genetics and physiology. Nitrogen fixation, being a major life-supporting process on this planet, has attracted the interest of researchers for more than one century. Nitrogen fixation is responsible for the conversion of "inert" dinitrogen (N ) gas from the atmos z phere into usable ammonia, replacing the fixed nitrogen constantly being lost to the atmosphere by the denitrification process. Worldwide agricultural productivity is deter mined by the availability of fixed nitrogen in all its forms, which the continually increas ing human population depends upon for survival. An international momentum is developing in the use of biofertilizers to improve legume and non-legume crop yields and in the study of genomics in this area. New studies are being undertaken in several laboratories to study novel nitrogen-fixing systems, including non-legume crops. The North American Conferences on Symbiotic Nitrogen Fixation have periodically chronicled the advances in our knowledge of this area. For the first time, this conference was held in Mexico. Thus, all three North Amer ican countries have been hosts for this event. This year conference brought nearly 200 scientists from 18 different countries presenting lectures and over 80 posters.
Book Synopsis Biological Nitrogen Fixation by : Frans J. de Bruijn
Download or read book Biological Nitrogen Fixation written by Frans J. de Bruijn and published by John Wiley & Sons. This book was released on 2015-06-16 with total page 2250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is arguably the most important nutrient required by plants. However, the availability of nitrogen is limited in many soils and although the earth's atmosphere consists of 78.1% nitrogen gas (N2) plants are unable to use this form of nitrogen. To compensate , modern agriculture has been highly reliant on industrial nitrogen fertilizers to achieve maximum crop productivity. However, a great deal of fossil fuel is required for the production and delivery of nitrogen fertilizer. Moreover carbon dioxide (CO2) which is released during fossil fuel combustion contributes to the greenhouse effect and run off of nitrate leads to eutrophication of the waterways. Biological nitrogen fixation is an alternative to nitrogen fertilizer. It is carried out by prokaryotes using an enzyme complex called nitrogenase and results in atmospheric N2 being reduced into a form of nitrogen diazotrophic organisms and plants are able to use (ammonia). It is this process and its major players which will be discussed in this book. Biological Nitrogen Fixation is a comprehensive two volume work bringing together both review and original research articles on key topics in nitrogen fixation. Chapters across both volumes emphasize molecular techniques and advanced biochemical analysis approaches applicable to various aspects of biological nitrogen fixation. Volume 1 explores the chemistry and biochemistry of nitrogenases, nif gene regulation, the taxonomy, evolution, and genomics of nitrogen fixing organisms, as well as their physiology and metabolism. Volume 2 covers the symbiotic interaction of nitrogen fixing organisms with their host plants, including nodulation and symbiotic nitrogen fixation, plant and microbial "omics", cyanobacteria, diazotrophs and non-legumes, field studies and inoculum preparation, as well as nitrogen fixation and cereals. Covering the full breadth of current nitrogen fixation research and expanding it towards future advances in the field, Biological Nitrogen Fixation will be a one-stop reference for microbial ecologists and environmental microbiologists as well as plant and agricultural researchers working on crop sustainability.
Book Synopsis Physiological Limitations and the Genetic Improvement of Symbiotic Nitrogen Fixation by : F. O'Gara
Download or read book Physiological Limitations and the Genetic Improvement of Symbiotic Nitrogen Fixation written by F. O'Gara and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rhizobium species involved in root nodule formation on legume plants are one of the best known groups of micro organisms. The Rhizobium legume symbiosis continues to be of strategic importance particularly in the context of food production. As the world population grows, it is also neces sary to have new developments taking place in crop improve ment. The development and application of new technologies in biological sciences over the past number of years have made the entire area of plant-microbial interaction an exciting and challenging research area to be involved in. In view of the importance of symbiotic nitrogen fixation, it is not surpris ing that it still represents one of the priority areas for commercial development in agricultural biotechnology. Since this symbiosis involves an association between procaryotic and eucaryotic partners, it requires of necessity a co-ordinated and interdisciplinary approach. It was in this spirit that this international conference was organised. The scientific programme was designed to focus on physio logical limitations affecting symbiotic nitrogen fixation and the potential for overcoming such limitations using genetic technologies. Participants were drawn from contractants of the EEC DGVI "Energy in Agriculture" nitrogen fixation prog ramme. The scientific programme was also supplemented with invited scientists from Europe and North America to provide appropriate expertise on the various conference topics.
Book Synopsis Advances in Plant Nitrogen Metabolism by : Peerzada Yasir Yousuf
Download or read book Advances in Plant Nitrogen Metabolism written by Peerzada Yasir Yousuf and published by CRC Press. This book was released on 2022-12-19 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Plant Nitrogen Metabolism is a thoughtful, provocative, and up-to-date volume that presents important physiological, biochemical, and molecular perspectives of the nitrogen metabolism in plants and regulatory networks underlying it. The book is an attempt to team up with global leading research experts working in the field of plant nitrogen metabolism to compile an up-to-date and wide-ranging volume. The main purpose of this book is to present information on the most recent developments including the different modern approaches and methodologies that are being currently employed in the field of plant nitrogen metabolism. We trust that this comprehensive volume will familiarize readers with the detailed mechanisms of nitrogen metabolism and its regulation and the current trends in this field of study. The book offers comprehensive coverage of the most essential topics, including: Role of nitrogen and its assimilation in plants Recycling and remobilization of nitrogen during senescence Role of phytohormones in nitrogen metabolism Biological nitrogen fixation Nitrogen biofertilizers: role in sustainable agriculture Effect of stress on plant nitrogen metabolism Reactive nitrogen species (RNS) in plants Nitrogen toxicity in plants, symptoms, and safeguards Nitrogen metabolism enzymes: structure, role, and regulation Regulatory RNAs and their role in nitrogen metabolism of diazotrophs As a pivotal contribution to the field, this volume is an invaluable and up-to-date foundation for plant physiologists, plant biochemists, geneticists, molecular biologists, agronomists, environmental researchers, and students of plant science. The book can also be used for the coursework of research and master's students.
Book Synopsis Regulation of Carbon and Nitrogen Metabolism in Rhizobium Leguminosarum by : Emma Mary Lodwig
Download or read book Regulation of Carbon and Nitrogen Metabolism in Rhizobium Leguminosarum written by Emma Mary Lodwig and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and Biochemistry of Nitrogen Fixation by : M. J. Dilworth
Download or read book Biology and Biochemistry of Nitrogen Fixation written by M. J. Dilworth and published by Elsevier Publishing Company. This book was released on 1991 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a wide-ranging critical evaluation by international experts of the state of knowledge in the whole field of biological nitrogen fixation. It includes coverage of the chemistry of N2 reduction, the biochemistry and molecular biology of the molybdenum and vanadium nitrogenases. There is review of the whole range of organisms fixing N2, including the free-living and symbiotic organisms (bacteria, cyanobacteria, actinomycetes). Detailed consideration is given to the ecology and agricultural use of the root nodule bacteria, the molecular biology and biochemistry of nodule formation and fuction. The practicability of extending symbiotic N2-fixation to other systems or to greater efficiency is examined.
Book Synopsis Legume Nitrogen Fixation in a Changing Environment by : Saad Sulieman
Download or read book Legume Nitrogen Fixation in a Changing Environment written by Saad Sulieman and published by Springer. This book was released on 2015-04-24 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world population will grow more rapidly during the few coming years. This must be accompanied by a parallel increase in the agricultural production to secure adequate food. Sustainability considerations mandate that alternatives to chemical nitrogen fertilizers must be urgently sought. Biological nitrogen (N2) fixation, a microbiological process which converts atmospheric N2 into a plant-usable form, offers this alternative. Among these renewable sources, N2-fixing legumes offer an economically attractive and ecologically sound means of reducing external inputs and improving internal resources. Environmental factors such as drought, elevated temperature, salinity, soil acidity and rising CO2 are known to dramatically affect the symbiotic process and thus play a part in determining the actual amount of nitrogen fixed by a given legume in the field. Understanding how nodule N2 fixation responds to the environment is crucial for improving legume production and maintaining sustainability in the context of global change. In this thoughtful and provocative new Brief, we provide critical information on how current and projected future changes in the environment will affect legume growth and their symbiotic N2 fixing capabilities. Each section reviews the main drivers of environmental change on the legume performance that include drought, elevated temperature, salinity and rising CO2, and soil acidity. Importantly we discuss the molecular approaches to the analysis of the stress response in legumes and the possible biotechnological strategies to overcome their detrimental effects.
Book Synopsis Physiological Limitations and the Genetic Improvement of Symbiotic Nitrogen Fixation by :
Download or read book Physiological Limitations and the Genetic Improvement of Symbiotic Nitrogen Fixation written by and published by . This book was released on 1988 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of host plant energy supply on nitrogen fixation; Carbon metabolism and the exclange of metabolites between symbionts in legume nodules; Bacterial catabolism of nitrogen contaning compounds in symbiotic nitrogen fixation; Studies on the Rhizobium-pea symbiosis: the role of malate dehydrogenase and the effect of the plant on the efficiency of the nitrogenase reaction; Energetics of symbiotic nitrogen fixation: the relationships between oxygen, malate and hydrogen; Rhizobium strain effect on nitrogen accumulation unpea relates to PEA carboxylase activity in nodules and asparagine in root bleeding sap. Flavanoid-rhizobium interactions; Peribacteroid membrane stability and phytoalexin production in legume nodules; Limitations and benefits of oxygen diffusion control in legume nodules; Factors controlling legume nitrogen fixation and their measurement in the field; Inhibition of symbiotic nitrogen fixation by nitrate; Variations in nodulation ability by strains of R. trifolii in the presence of nitrate; Positive and negative aspects of denitrification in Rhizobium-legume associations; Competition between nodulating and non-nodulating Rhizobium strains: delay of nodulation; Effect of soil pH on nitrogenase activity, crop yield and Rhizobium multiplication; Dicarboxylic acid utilization and nitrogen fixation efficiency in Rhizobium-legume symbiosis; Regulation of nitrogen fixation in the Rhizobium meliloti-alfafa symbiosis; Structure and regulation of fix genes from Rhizobium meliloti; Organization and expression of hydrogen-uptake (hu) genes of Rhizobium leguminosarum; Two classes of Rhizobium genes requiredfor the nodulation of legumes; The role of nodulins in root nodule development.
Book Synopsis Genetic Engineering for Nitrogen Fixation by : Alexander Hollaender
Download or read book Genetic Engineering for Nitrogen Fixation written by Alexander Hollaender and published by Springer. This book was released on 1977-09 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overview of nitrogen fixation; Plasmids as vectors for gene cloning; The nitrogen fixation cistrons of Klebsiella pneumoniae; Transformation of nitrogen-fixation genes in Azotobacter; Genetic hybridization of root-nodule bacteria (Rhizobium); Genetic mapping of Rhizobium meliloti using RP4; Nitrogen fixation (NIF) regulatory mutants of Klebsiella: determination of the energy cost of N2 fixation in vivo; Cloning nitrogen fixing genes from Klebsiella pneumoniae in vitro and the isolation of NIF promoter mutants affecting glutamine synthetase regulation; The development of a molecular cloning system in higher plants; The ti-plasmid of Agrobacterium tumefaciens, a natural vector for the introduction of NIF genes in plants?; The incorporation and expression of agrobacterium plasmid genes in crown gall tumors; Engineered plant cell or fungal association with bacteria that fix nitrogen; Uptake of the nitrogen fixing blue-green alga Gloeocapsa by plant protoplasts; The azolla-anabaena azollae symbiosis; Nitrogen fixation by Azolla in rice fields; Lectins as determinants of specificity in legume-rhizobium symbiosis; Plant protoplast fusion and hybridization; Biochemistry of nitrogenase; Energy coupling efficiency of symbiotic nitrogen fixation; Approaches for increasing phorosynthetic efficiency efficiency; Rate-limiting steps in biological photoproductivity; Photosynthesis and symbiotic nitrogen fixation in Phaseolus vulgaris L.; Use of RP4 plasmids carrying bacteriophage Mu insertions in nitrogen fixing bacteria. Genetic control of symbiotic nitrogen fixation in soybean; Glutamine synthetase control of nitrogen fixation in Rhizobia; Introduction of potential sex factors into Rhizobium japonicum; Antibiotic resistance in Rhizobium japonicum: implications for safety and interpretation of NIF transfer from Rhizobium; Limitations to field application of Rhizobium inoculants; Fast reaction kinetics of ferredoxin; Transient intermediate species in the oxidation of hydrazine; Recombinant DNA guidelines for nitrogen fixation in plant sciences - roundtable summary; Potential associated nitrogen fixing systems - roundtable; Physiological studies of Spirillum lipoferum; N2 fixation associated with non-leguminous; Taxonomic studies of Spirillum lipoferum; Use of 15N-enriched soil to study N2 fixation in grasses; Panel on public impact issues summarized; Environmental impact; Genetic engineering of nitrogen fixations (NIF); Legal aspects of recombinant DNA research; Agricultural productivity and biological nitrogen fixation, an international view.
Book Synopsis Nitrogen Assimilation by Plants by : J F Morot-Gaudry
Download or read book Nitrogen Assimilation by Plants written by J F Morot-Gaudry and published by CRC Press. This book was released on 2001-01-01 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication contains the most important information acquired over the last twenty years in the area of nitrogen metabolism and envisages new strategies to improve plant species of agronomic value by devising new techniques for growing them.
Book Synopsis Ecological Aspects of Nitrogen Metabolism in Plants by : Joe C. Polacco
Download or read book Ecological Aspects of Nitrogen Metabolism in Plants written by Joe C. Polacco and published by John Wiley & Sons. This book was released on 2011-01-20 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological Aspects of Nitrogen Acquisition covers how plants compete for nitrogen in complex ecological communities and the associations plants recruit with other organisms, ranging from soil microbes to arthropods. The book is divided into four sections, each addressing an important set of relationships of plants with the environment and how this impacts the plant’s ability to compete successfully for nitrogen, often the most growth-limiting nutrient. Ecological Aspects of Nitrogen Acquisition provides thorough coverage of this important topic, and is a vitally important resource for plant scientists, agronomists, and ecologists.
Download or read book Nitrogen Fixation written by M Polsinelli and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fifth International Symposium on Nitrogen Fixation with Non-legumes was held in Florence (Italy) on 10-14 September, 1990. Earlier Symposia of this series were held in Piracicaba (Brazil), Banf Alberta (Canada), Helsinki (Finland) and Rio De Janeiro (Brazil). The Symposium's main objectives were to bring together scientists working in many different fields of nitrogen fixation, to stimulate discussion on this important process and to have an appraisal of the most recent studies concerning nitrogen fixation with non-legumes. The Symposium was attended by 230 scientists from 32 different countries. This volume collects the contributions of 65 lectures and 87 posters, which are an up-to-date account of the state of knowledge on biological nitrogen fixation with non-legumes. The book provides a valuable reference source not only for specialists in nitrogen fixation, but also for researchers working on related aspects of agronomy, biochemistry, genetics, microbiology, molecular biology and plant physiology. It is with great pleasure that we aknowledge the contributions of the authors in assuring the prompt pubblication of this volume. We would also like to express our thanks to Kluwer Academic Publishers B.V. for the publication of these Proceedings. M. Polsinelli R. Materassi M. Vincenzini ORGANIZING COMMITTEE President M. Polsinelli M. Vincenzini Secretary F. Favilli Treasurer E. Galli E. Gallori L. Giovannetti R. Materassi M.P. Nuti M.R. Tredici SCIENTIFIC COMMITTEE M. Bazzicalupo Florence, Italy H. Bothe Cologne, West Germany R.H. Burris Madison, U.S.A.
Book Synopsis Genetic Engineering of Symbiotic Nitrogen Fixation and Conservation of Fixed Nitrogen by : J. M. Lyons
Download or read book Genetic Engineering of Symbiotic Nitrogen Fixation and Conservation of Fixed Nitrogen written by J. M. Lyons and published by Springer. This book was released on 1981-10 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetics and regulation of nitrogen fixation. Plant factors impacting nitrogen assimilation. Nitrogen fixation by nonlegumes. Conservation of fixed nitrogen.
