Nitrogen Fixing Actinorhizal Symbioses

Author: Katharina Pawlowski
Editor: Springer Science & Business Media
ISBN: 1402035470
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For researchers and graduates with any interest in plant or soil sciences, this fascinating study will be a godsend – it’s the complete state of the art with regard to actinorhizal symbioses. The self-contained sixth volume of a comprehensive series on nitrogen fixation, it includes chapters that deal with all aspects of this symbiosis between actinorhizal plants and nitrogen-fixing bacteria. It also contains information both about symbionts and their ecological role and use. Other chapters tackle the global distribution of different actinorhizal plants and their microsymbionts and how this impacts the question of co-evolution of the micro- and macrosymbionts as well as comparing the actinorhizal and leguminous symbioses. No other book provides the up-to-date and in-depth coverage of this volume.

Molecular Aspects Of Plant Beneficial Microbes In Agriculture

Author: Vivek Sharma
Editor: Academic Press
ISBN: 0128184698
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Molecular Aspects of Plant Beneficial Microbes in Agriculture explores their diverse interactions, including the pathogenic and symbiotic relationship which leads to either a decrease or increase in crop productivity. Focusing on these environmentally-friendly approaches, the book explores their potential in changing climatic conditions. It presents the exploration and regulation of beneficial microbes in offering sustainable and alternative solutions to the use of chemicals in agriculture. The beneficial microbes presented here are capable of contributing to nutrient balance, growth regulators, suppressing pathogens, orchestrating immune response and improving crop performance. The book also offers insights into the advancements in DNA technology and bioinformatic approaches which have provided in-depth knowledge about the molecular arsenal involved in mineral uptake, nitrogen fixation, growth promotion and biocontrol attributes.

The Yearbook Of Agriculture

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Rhizosphere Achievements And Challenges

Author: Philippe Hinsinger
Editor: Springer Verlag
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Broader in scope than classic references, this volume looks at the rhizosphere as a holistic entity by incorporating concepts from molecular biology. The text also identifies concepts that could lead to new management methods in ecological engineering.

Biological Nitrogen Fixation

Author: Adrienne G. Miles
Editor: Springer Science & Business Media
ISBN: 9780412024214
File Size: 78,78 MB
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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.

Proceedings Of The National Conference On Undergraduate Research

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Nitrogen Fixation

Author: John Postgate
Editor: Cambridge University Press
ISBN: 9780521648530
File Size: 59,41 MB
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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.

Casuarinas

Author: Nanjappa Shamanna Subba Rao
Editor: Science Pub Incorporated
ISBN:
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Information Report

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Soils And Fertilizers

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Nitrogen Fixing Organisms

Author: Janet I. Sprent
Editor: Springer
ISBN:
File Size: 48,91 MB
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This book is concerned essentially with how nitrogen-fixing organisms function and why they are of practical importance. Special chapters deal with nitrogen fixation in agriculture, in forestry, and in aquatic and terrestrial ecosystems. In an appendix an outline of the main methods used for measuring nitrogen fixation, and some of the problems that must be faced is given

Can J Microbiol

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Microbes

Author: Ajit Varma
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Socity benefits from microorganismsin man ways. They are necessarfor the production of breads, cheese, bear, antibiotics, vaccines, vitamins, enzymes and many other important products. Microorganisms are indispensible components of our ecosystems. Indeed moderen biotechnology rests upon a solid mocrobiological foundation.

Microbial Interactions In Agriculture And Forestry

Author: Nanjappa Shamanna Subba Rao
Editor: Science Pub Incorporated
ISBN:
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Molecular microbiological studies have focused attention on the characterization of known and unknown bacterial species implicated in plant growth. This text explores the microbial interactions relevant in agriculture and forestry.

Nitrogen Fixing Leguminous Symbioses

Author: Michael J. Dilworth
Editor: Springer Science & Business Media
ISBN: 9781402035487
File Size: 41,86 MB
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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.

Nitrogen Fixation With Non Legumes

Author: N. A. Hegazi
Editor: Amer Univ in Cairo Press
ISBN:
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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.

Proceedings Of The Central Hardwood Forest Conference Vi

Author: Ronald L. Hay
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Nitrogen Fixation In Agriculture Forestry Ecology And The Environment

Author: Dietrich Werner
Editor: Springer Science & Business Media
ISBN: 1402035446
File Size: 59,12 MB
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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.

Research For Tomorrow

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Soil Microflora

Author: Rajan Kumar Gupta
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When we are standing on the ground, we are really standing on roof-top of other world. Soil might look dirt but it is far more interestings; living in the soil or plant roots, bacteria, fungi, actinomycetes, algae, lichens, protozoan, nematodes etc. These exist in great diversity among various microorganisms and even with in a group of microorganisms, dependng on the habitat and environmental factors. Soils are formed from a stew of geological ingredients or parent material (rock and mineral), water and billions of organisms. The interaction between climate, parent of soil properties that are unique to the soil type and climate. It has been proposed that a micorbe should be considered as a new state symbol in the company of state animals, the state bird, state flower, state fish and state insect. The state microbe will be a living symbol of an organism that reflect the culture and heritage of people and will contribute mightily to the state s economy. The present Volume is compendium of wide ranging modern topics on soil microbiology. It is an assemblage of the up-to-date information of rapid advances and developments taking place in the field of soil microbilogy. The book is a unique compilation of 30 Chapters which discuss exhaustive studies on algae, fungi, lichens, mycorrhizae, bacteria, virus and other microroorganisms. This book will be a mile-stone in the field of soil microbiology, because it will open a new vista in the field of soil microbiology and its applied aspects. The authors have done a tremendous job of synthesizing all the recent and up-to-date information. The present book aimed to emphasise on diverse aspects of soil microflora. The various information incorporated in the book by authors who are internationally acknowledged experts in the microbiology and are the eminent scientists of the Country, they have made sincere efforts to make their papers as recent and comprehensive as possible. The book has been framed with the intention of providing a sufficient depth of the subject to satisfy the needs at a level which will be comprehensive and interesting. The book will be useful to the students, theacher, scientists and researchers from the different branches of soil microbiology. It is hoped that the will fully meet the objectives of catering the needs of the students and researchers in the fields of Botany, Microbiology, Soil Science, Agricultural Science and Forestry of all Indian Universities. Contents Chapter 1: Soil Microflora: A General Aspect by Mukesh Kumar, Anjali Khare and Rajan Kumar Gupta; Chapter 2: Distribution of Cyanobacteria in Coastal Sandy Soils and Alumina Mine Waste Soils of Orissa by S P Adhikary and Pramila Tripathy; Chapter 3: Significance of Soil Microorganisms in Sustainable Agriculture by Shalini Singh, Rachana Srivastava and Y V Singh; Chapter 4: Impact of Herbicides on Cyanobacterial Flora of Rice Fields by Mihir Kumar Das; Chapter 5: Mycorrhizae: Benefits and Practical Applications in Forest Management by K P Singh, P Srinivas and Bijendra Kumar; Chapter 6: Role of Earthworms in Soil Biology and Crop Production by Y V Singh, Shalini Singh and Rachana Srivastava; Chapter 7: Diversity of Soil Lichens in India by Roshni Khare, D K Upreti, Sanjeeva Nayaka and R K Gupta; Chapter 8: Bacterial and Fungal Diversity in Alkali Affected Soil by Kaushal Pratapo Singh, Dheeraj Mohan and Seema Bhadauria; Chapter 9: Frankia-Actinorhizal Symbiosis: An Overview by Amrita Srivastava, Anju Singh, Satya Shila Singh and Arun Kumar Mishra; Chapter 10: Cyanobacterial Surfactants Enhance the Fertility and Stability of Tropical Soils by Usha Pandey; Chapter 11: Soil Denitrifying Bacteria and Environmental Factros Regulating Denitrification in Soil by Paromita Ghosh; Chapter 12: Molecular Mechanism of Nitrogen Fixation in Rhizobium by Ravi Rajhans and Rajan Kumar Gupta; Chapter 13: Role of Soil Microorganisms in Nutrition and Health of Higher Plants by Dheeraj Mohan, Preetesh Kumari, Kaushal Pratap Singh and Anurahda Chauhan; Chapter 14: Soil Microflora and their Impact on Soil Health by Narendra Kumar, Pawan Kumar and Surendra Singh; Chapter 15: Soil Microbes and their Importance by Anjana K Vala and Anita Suresh Kumar; Chapter 16: Freeze Recovery and Nitrogenase Activity in Antarctic Cyanobacterium Nostoc Commune by Rajan Kumar Gupta and Mukesh Kumar; Chapter 17: Seasonal Variation in Root Colonization and Rhizosphere Soil Spore Population of Mycorrhiza Species in Various Plants Growing in Alkali Soil by Kaushal Pratap Singh, Dheeraj Mohan, Rekha Yadav, Seema Bhadauria and Chatar Singh; Chapter 18: Nitrogen Fixing Soil Microflora by Yashveer Singh; Chapter 19: Agrobacterium: A Natural Genetic Engineer by Ashutosh Bahuguna, Madhuri K Lily and Koushalya Dangwal; Chapter 20: Association of Vesicular Arbuscular Mycorrhizas with Ornamental Plant Petunia by Deepak Vyas Deepali Bilthare, Pramod Kumar Richhariya and Rajan Kumar Gupta; Chapter 21: Cyanobacterial Biodiversity in the Soils of Kumaon Region by Anjali Khare, Mukesh Kumar and Promod Kumar; Chapter 22: Ecological Diversities in Soil Microorganisms by P B Tiwary; Chapter 23: Biocontrol of Leaf Rot of Pan Caused by Phytophthora Parasitica var Piperina by Native Fungal Species by Deepak Vyas, Rajesh Yadav and Rajan Kumar Gupta; Chapter 24: Azotobacter: Recent Advances by Sangeeta Paul and Bishwajeet Paul; Chapter 25: Prospects and Potential of Azolla-Anabaena System by G Abraham, Sudheer Saxena and Dolly Wattal Dhar; Chapter 26: Ecological and Biotechnological Relevance of Cyanobacteria by Kaushal Kishore Choudhary; Chapter 27: Usse of Azolla as Cheap and Sustainable Source of Feed and Other Utililties for Future by G Abraham, Raghubir Shah and Dolly Wattal Dhar; Chapter 28: Soil Micro-diversity and its Importacne in Agriculture by G K Sharma; Chapter 29: Soil Microflora of Rohilkhand Division by Iqbal Habib and U K Chaturvedi; Chapter 30: Role of Cyanobacteria in Amelioration of Soil by Pramita Jaiswal