The Chemistry and Biochemistry of Nitrogen Fixation

The Chemistry and Biochemistry of Nitrogen Fixation

Author: J. Postgate

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 339

ISBN-13: 1468418181

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Understanding of biological nitrogen fixation has advanced with impressive rapidity during the last decade. As befits a developing area of Science, these advances have uncovered information and raised questions which will have, and indeed have had, repercussions in numerous other branches of science and its applications. This 'information explosion', to use one of to-day's cant idioms, was initiated by the discovery, by a group of scientists working in the Central Research laboratories of Dupont de Nemours, U. S. A. , of a reproducibly active, cell-free enzyme preparation from a nitrogen fixing bacterium. Full credit is due to them. But subsequent developments, albeit sometimes quite as impressive, have too often been marked by that familiar disorder of a developing field of research-the scramble to publish. It is a scramble which, at its best, may represent a laudable desire to inform colleagues of the latest developments; yet which too easily develops into an undignified rush for priority, wherewith to impress one's Board of Directors or Grant-giving Institution. This, in miniature, is the tragedy of scientific research to-day: desire for credit causes research to be published in little bulletins, notes and preliminary communications, so that only those intimately involved in the field really know what is happening (and even they may well not see the forest for the trees). Those outside the field, or working in peripheral areas, may glean something of what is going on from reviews and fragments presented at meetings, but the broad pattern of development is often elusive.


Biological Nitrogen Fixation

Biological Nitrogen Fixation

Author: Gary S. Stacey

Publisher: Springer Science & Business Media

Published: 1992-04-30

Total Pages: 960

ISBN-13: 9780412024214

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Phylogenetic classification of nitrogen-fixing organisms. Physiology of nitrogen fixation in free-living heterotrophs. Nitrogen fixation by photosynthetic bacteria. Nitrogen fixation in cyanobacteria. Nitrogen fixation by methanogenic bacteria. Associative nitrogen-fixing bacteria. Actinorhizal symbioses. Ecology of bradyrhizobium and rhizobium. The rhizobium infection process. Physiology of nitrogen-fixing legume nodules: compartments, and functions. Hydrogen cycling in symbiotic bacteria. Evolution of nitrogen-fixing symbioses. The rhizobium symbiosis of the nonlegume parasponia. Genetic analysis of rhizobium nodulation. Nodulins in root nodule development. Plant genetics of symbiotic nitrogen fixation. Molecular genetics of bradyrhizobium symbioses. The enzymology of molybdenum-dependent nitrogen fixation. Alternative nitrogen fixation systems. Biochemical genetics of nitrogenase. Regulation of nitrogen fixation genes in free-living and symbiotic bacteria. Isolated iron-molybdenum cofactor of nitrogenase.


Symbiotic Nitrogen Fixation

Symbiotic Nitrogen Fixation

Author: P. Graham

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 206

ISBN-13: 9401110883

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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.


Biological nitrogen fixation in forest ecosystems: foundations and applications

Biological nitrogen fixation in forest ecosystems: foundations and applications

Author: John C. Gordon

Publisher: Springer Science & Business Media

Published: 1983-09-30

Total Pages: 358

ISBN-13: 9789024728497

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Silvicultural systems and biological nitrogen fixation; Morphology of nitrogen fixers in forest ecosystems; Taxonomy and distribution of non-legume nitrogen-fixing systems; Isolation and culture of nitrogen-fixing organisms; Wheeler, biochemical, physiological and environmental aspects of symbiotic nitrogen fixation; Analysis of nitrogen fixation; Agricultural and horticultural systems: implications for forestry; Nitrogen fixing plants in forest plantation management; Nitrogen fixation in North American forestry: research and application; Application of biological nitrogen fixation in European silviculture; Nitrogen fixation in Southeast Asian forestry: research and practice; Biological nitrogen fixation in forestry: research and practice in Australia and New Zealand.


Biotechnology of Biofertilizers

Biotechnology of Biofertilizers

Author: S. Kannaiyan

Publisher: Alpha Science Int'l Ltd.

Published: 2002

Total Pages: 400

ISBN-13: 9781842650998

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This volume is written with the objective of covering the basic issues in biological nitrogen fixation such as: the physiology, biochemistry and molecular genetics of nitrogen fixation; and the role of signal molecules and host gene expression in nodulation and nitrogen fixation. The book also details recent developments in biofertilizer technology, such as: the immobilization of cyanobacteria; endophytic nitrogen fixation; and solubilization and mobilization of nutrients by phosphobacteria and VA mycorrhiza and their role as bioinoculants.


Biology and Biochemistry of Nitrogen Fixation

Biology and Biochemistry of Nitrogen Fixation

Author: M. J. Dilworth

Publisher: Elsevier Publishing Company

Published: 1991

Total Pages: 456

ISBN-13:

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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.