Download or read book Nitrogen Fixation with Non Legumes written by K.A. Malik and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diazotrophic bacteria convert atmospheric nitrogen to plant-useable form and this input of nitrogen through biological fixation is of great agronomic importance. The contributions presented in this volume relate to free-living nitrogen fixers and the diazotrophs associated with plants. Symbiotic association of Frankia with non-legumes and cyanobacterial associations are also discussed. Research topics covered in this volume include the biochemistry and genetics of diazotrophs, recent developments in improvement of plant-microbe interactions and their molecular basis, the use of molecular probes in taxonomy and ecology of diazotrophs and reports on field applications, agronomic importance and improvement in methodologies for assessing their contribution to plants. This book provides valuable information not only for researchers working in the field of biological nitrogen fixation but also for biochemistry, molecular biologists, microbiologists and agronomists.

Download or read book Nitrogen Fixation with Non Legumes written by F.A. Skinner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 4th International Symposium on Nitrogen Fixation with Non-Legumes, Rio de Janeiro, Brazil, August 23-28, 1987

Download or read book Nitrogen Fixation with Non Legumes written by P. Uomala and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological fixation of nitrogen by organisms and associations other than those concerned in the legume-Rhizobium symbiosis has attracted increasing attention since the firstintemationalworkshop on the theme at Piracicaba, Brasil, in 1979. Approximately 150 scientists gathered on September 2-8, 1984, at the Hanasaari Cultural Centre near Helsinki, Finland, for the third international meeting on nitrogen fixation with non-legumes. Forty-two papers and 39 posters were presented; 32 of the papers have been broughttogetherin this publication. The Symposium was generously sponsored by the FinnishNational Fund for Research and Development (SITRA) in connection with a large project on biological nitrogenfixation and utilization ofnitrogen extending from 1980 to 1985. The Symposium was organized jointly by SITRA, which dealt with all practical matters very efficiently and with impressive concern for the welfare of the participants, and Societas Biochemica, Biophysica et Microbiologica Fenniae, the society of Finnish microbiologists, which made valuable contributions on scientific matters. As in the previous symposium at Banff, Canada, in 1982 the programme did not involve parallel sessions~ all participants had the opportunity of listening to all presentations. Consequently, the FIN- NIF Symposium profited from a steady audience and the consistency this gave to the discussions. In view of the growing interest in N-fixation with non-legumes and the continuous broadening of the field, such an arrangement may not be possible in the future. I thank all participants for their contributionsto both oral sessions and poster presentations, and hope that this publication will become a frequently quoted source of knowledge.

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.

Download or read book Nitrogen Fixing Bacteria Sustainable Growth of Non legumes written by Dinesh Kumar Maheshwari and published by Springer Nature. This book was released on 2022-10-07 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers aspects of biological nitrogen fixation along with the unique signaling and interaction between the diazotrophic bacteria and plants, especially the non-legumes. Nitrogen is the most important growth-limiting nutrient in the ecosystems and biological nitrogen fixation involving microbial symbionts, mainly rhizobia and legumes holds enormous interest across the globe. However, free-living rhizobacteria of non-legumes especially cereals, also establish themselves within the root system, fixing nitrogen and contributing to plant productivity, soil fertility, and agricultural sustainability. These non-symbiotic nitrogen fixers additionally exhibit various plant growth-promoting traits elevating productivity, fortifying nutrient content, and managing water stress in plants. The recent perspectives highlighting the mechanisms and background of non-symbiotic nitrogen fixation provide answers to unravel the potential of nitrogenase and various spectra of habitats of rhizobia and other diazotrophic bacteria. Further, the application of genetic engineering and the development of nitrogen-fixing cereals can provide a possible solution to the problem of food shortage. The book includes various scientific inputs providing comprehensive knowledge about the emergence of agricultural sustainability through nitrogen-fixing bacteria. The book illustrates the systematic mechanisms involved in biological nitrogen fixation through various illustrations, schematic drawings, and flow charts aiding in better understanding. The chapters elaborate on the physiology and metabolism of plant-bacteria interaction in different crops under diverse environmental conditions. Thus, the volume will provide a holistic scenario helping in advancing the novel plant-microbe interactions, cell-signaling, and plant-molecular interactions. The book will assist the agronomists, microbiologists, ecologists, plant pathologists, molecular biologists, environmentalists, policymakers, conservationists, and NGOs to develop biofertilizers and bioinoculants using various genera of microbes and contribute to the targets of sustainable goals in an eco-friendly manner.

Download or read book Opportunities for Biological Nitrogen Fixation in Rice and Other Non Legumes written by J.K. Ladha and published by Int. Rice Res. Inst.. This book was released on 1997-10-31 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Second Working Group Meeting of the Frontier Project on Nitrogen Fixation in Rice held in Faisalabad, Pakistan, 13-15 October 1996

Download or read book Nitrogen Fixation with Non Legumes written by Frederick Arthur Skinner and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Nitrogen Fixation written by Gary S. Stacey and published by Springer Science & Business Media. This book was released on 1992-04-30 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Symbiotic Nitrogen Fixation in Plants written by P. S. Nutman and published by Cambridge University Press. This book was released on 1976-02-26 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetical aspects and taxonomy; Quality of legume inoculants; Field experiments on nitrogen fixation by nodulated legumes; Legume nitrogen fixation and the environment; Nitrogen fixing symbioses in non-leguminous plants.

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.

Download or read book Nitrogen Fixation with Non legumes written by and published by . This book was released on 1998 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inoculation of Legumes and Nonlegumes with Nitrogen fixing and Other Bacteria written by F. Löhnis and published by . This book was released on 1928 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods for Evaluating Biological Nitrogen Fixation written by F. J. Bergersen and published by John Wiley & Sons. This book was released on 1980 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cultivation of diazotrophic microorganisms. Measurement of nitrogen fixation by direct means. Measurement of nitrogen fixation by indirect means. Methods for legumes in glasshouses and controlled environment cabinets. Non-legumes nodule systems. Methods for studying nitrogenase. Methods for studying enzymes involved in metabolism related to nitrogenase. Preparation and experimental use of leghaemoglobin. Methods for identifying strains of diazotrophs. Genetic studies with diazotrophs. Experiments with crop and pasture legumes: principles and practice. Production and quality control of legume inoculants. Forage grasses and grain crops. Nitrogen fixation in natural plant communities and soils. Sytems involving blue-green algae (cyanobacteria).

Download or read book Biological Nitrogen Fixation for Sustainable Agriculture written by J.K. Ladha and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical fertilizers have had a significant impact on food production in the recent past, and are today an indispensable part of modern agriculture. On the other hand, the oil crisis of the 1970s and the current Middle East problems are constant reminders of the vulnerability of our fossil fuel dependent agriculture. There are vast areas of the developing world where N fertilizers are neither available nor affordable and, in most of these countries, balance of payment problems have resulted in the removal of N fertilizer subsidies. The external costs of environmental degradation and human health far exceed economic concerns. Input efficiency of N fertilizer is one of the lowest and, in turn, contributes substantially to environmental pollution. Nitrate in ground and surface waters and the threat to the stability of the ozone layer from gaseous oxides of nitrogen are major health and environmental concerns. The removal of large quantities of crop produce from the land also depletes soil of its native N reserves. Another concern is the decline in crop yields under continuous use of N fertilizers. These economic, environmental and production considerations dictate that biological alternatives which can augment, and in some cases replace, N fertilizers must be exploited. Long-term sustainability of agricultural systems must rely on the use and effective management of internal resources. The process of biological nitrogen fixation offers and economically attractive and ecologically sound means of reducing external nitrogen input and improving the quality and quantity of internal resources. In this book, we outline sustainability issues that dictate an increased use of biological nitrogen fixation and the constraints on its optimal use in agriculture.

Download or read book Nitrogen Fixation with Nonlegumes written by F. A. Skinner and published by . This book was released on 1986 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen Fixation with Non legumes written by N. A. Hegazi and published by . This book was released on 1994 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen fixation-past and future. Free-living diazotrophs and photosynthetic bacteria. Free-living diazotrophs and photosynthetic bacteria: an indroction to the session. Poole, physiology of N2 fixation relating to N, 02, H2 status in free-living heterotrophs. Ammonium assimilatory pathways and electron transport system in acetobacter diazotrophicus. Nif-plasmid spread in agricultural soil, as influenced by sugars and their metabolites. Effect of NAD+ in nitrigen fixing rhodospirillum rubrum. Biological dinitrogen fixation in lake Edku, Alexandrina, Egypt. Nitrogenase acitivity(C2H2 reduction) in upper Egyptiansoils amended with wheat straw: Effects of soil moisture and pO2. Nitrogenase activity of free-living diazotrophs under pesticide treatment.Interaction of diazotrophs with other microorganisms. Mixed inocula of azospirillum and other organisms: an introduction to the session. Azospirillum and related organisms: ecological, physiological, biochemical and aspects. Occurrence of diazotrophic bacteria and vesicular- arbuscular mycorrhizal fugi associated with cassava(manihot esculenta crants). Identification of Azoarcus spp.,grassassociated diazotrophs, by analysis of partial 16S rDNA sequences. Nitrogenase, cellulase and pectinase activity in sugar cane roots inoculated together with V.A. mycorrhiza and nitrogen-fixing bacteria. Evalation of N2-fixed by wheat plants grown in sandy soils using tracer techniques. Free-living and symbiotic cyanobacteria: an introduction to the session. Nitrogenase in the marine non-heterocystous cyanobacterium Trichodesmium - a review. N2-fixation in the filamentous cyanobacterium Oscillatoria chalybea measured by mass spectrometry. A global nitrogen regulator in the cyanobacteria. Photosynthesis and nitrogenase activity in Synechocystis and anabaena. Environmental factors regulating the effect of ammonium on nitrogenase activity in cyanobacteria from rice fields. Indole-3-acetic(IAA))) in the azolla-anabaena symbiosis. Potential role of Azolla as green manure for rice in nile delta under different levels of inorganic fertilization. First evidence for the cutinic nature of the envelope at the interface of azolla and its endophytes. Function of paracrystalline phycobiliproteis and phycobilisomes in the diazotrophic synechocystis sp. strain BO 8402 and a derivative strain BO 9201. The induction of dinitrogen fixation in diluted cultures of the filamentous cyanobacterium nostoc 6720. Rice yeld and resistance to infestation with the stem borer chilo agamemnon as affected by algalization under differen agrochemical conditions. Response of some indica and japonica rice to fertilization regimes containing nitrogen and cyanobacteria. The nostoc-gunnera symbiosis: development of the symbiotic tissue. The nostoc-gunnera symbiosis: specificity and early communication. Agglutination of erythrocytes by cell extracts of the azola/anabaena symbiotic association. Comparison between various growth parameters of azolla grown on different media with various pH values. Azolla cultivation in EgyptUse of azolla as biofertilizer in rice-wheat cropping system. Azolla- bacterial symbiosis, detection and preliminary characterization of lectins. The role of azolla with rice plants in N2-fixation(BNF). Dynamic of 15N-labelled azolla into two paddy soils of madagascar. Effect of environmental factors on the nitrogenase activity of nostoc ellipsosporum DH42. Actinorhizal symbiosis. Progress and prospects of research on actinorhizal symbiosis: an introduction to the session. Frankia microsymbiont in dryas drummondii nodules is closely related to the microsymbiont of coriaria and genetically distinct from other characterized frankiaq strains. Differential gene expression in root nodules of alnus glutinosa. Hopanoid lipds in relation to nitrogen fixation: fuction in frankia and occurrence in other diazotrophic organisms. The relative merits of nodule homogenases and pure culture of frankia in inducing nodulation in alder. The use of oligonucleotide probes to detect uncultured frankia strains in the root nmodules of coriaria nepalensiswall. Tchniques of isolation of frankia spp. in growth culture for rhizobium. Antibiotic-resistant derivatives from frankia strains of the casuarina and allocasuarina genera. Interlations and light requirement of nitrogenase and nitrate reductase activities in almus glutinosa. Superior cutivars of casuarina for nitrogen fixation in egypt. Characterization of frankia strains isolated from nodules of casuarina equisetifolina from egypt and Brazil. Plant-associated diazotrophs. Plant-diazotrophs: an introduction to the session. Regulation of nitrogen fixation and nitrogen metabolism in azospirillum brasiliense: a review. Genetic and histochemical analysis of the azospirillum-wheat root association.Regulatory role of the PII protein in the coordination of nitrogenfixation and ammonia assimilation in response to the cellular nitroge status in azospirillum brasilense. Indole-3-acetic acid biosynthesis in azospirillum brasilense. Plasmid contents and nif genes detection inacetobacter diazotrophicus strains. Development and application of 23SrRNA-directed oligo-nucleotide probes for azospirillum spp.,acetobacter diazotrophicus and herbaspirillum. Imunological studies of the weathroot-colonization by the azospirillum brasiliense stains Sp245 using strain-specific monoclonal antibodies. Isolation from the rice rhizosphere of a new species of nitrogen-fixing proteobacteria, belonging to the genus burkholderia. Nitrogen fixation in rice plantlets inoculated with pure or mixed cultures of azospirillum species and bacillus polymyxa. Efficacy and dynamics of colonization of plant root surfaces withpure and mixed cultures of associsated nitrogen fixers. Mixed cultivation and inoculation of various genera of associative diazotrophs. Survival and effect of azorhizobium caulinodans on rice roots. Effect of commercial glyphosate preparates and their additives on associative N2-fixation. Functional organization of the ORFXNTRBC locus of aqzospirillum brasilense SP7 and study of gene regulation by using LACZ fusions.Effect of klebisiella pneumoniae nifa on the regulation of nif gene expression by ammonia in azospirillum brasiliense. Chromosomal make-up in wheat and their response to rhizobium.Produced by single and mixed cultures of A. brasilense and K. pneumoniae and their mutants grown under varions growth conditions. Excretion of NH4+ by A. brasilense and K. pneumoniae mutants resistant to L-methionine sulfoximine. A fermentor system for modelling interactions between endophytic bacteria and plant cell cultures. pH-dependent activity changes of nitrate reductase upon immobilization of Azospirillum brasilense in continuous culture.The growth of some diazotrophs in bath culture.

Download or read book The Chemistry and Biochemistry of Nitrogen Fixation written by J. Postgate and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.