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Nitrogen fixation

About: Nitrogen fixation is a research topic. Over the lifetime, 7940 publications have been published within this topic receiving 232921 citations. The topic is also known as: GO:0009399.


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BookDOI
01 Jan 2005
TL;DR: This book discusses the production and Biological Nitrogen Fixation of Tropical Legumes, and the importance of Symbiotic Nitrogenfixation in Soybean Cultivation in China and its role in the Soil Environment.
Abstract: Preface to the Series. Preface. List of Contributors. 1: Production and Biological Nitrogen Fixation of Tropical Legumes D. Werner 1. Introduction 2. Phaseolus sp. and Vigna sp. (Beans) 3. Arachis hypogaea (Groundnut, Peanut) 4. Cicer arietinum (Chickpea) 5. Cajanus cajan (Pigeon pea) 6. Mucuna pruriens (Velvet bean) and Other Legumes Acknowledgements References 2: Nitrogen Fixation by Soybean in North America S. G. Pueppke 1. Soybean: Pathways to North America and Establishment as a Crop 2. Soybean Production in North America 3. Major Soybean Cropping Systems 4. Biological Nitrogen Fixation by Soybean in North America 5. Perspectives Acknowledgements References 3: The Importance of Nitrogen Fixation to Soybean Cropping in South America M. Hungria, J. C. Franchini, R. J. Campo and P. H. Graham 1. Introduction 2. Taxonomy, Origins, and Importance of Soybean 3. Biological Nitrogen Fixation 4. Economic Importance of Biological Nitrogen Fixation (BNF) in South America 5. Crop Management in South America 6. Final Considerations Acknowledgement References 4: Production, Regional Distribution of Cultivars, and Agricultural Aspects of Soybean in India S. K. Mahna 1. Introduction and Historical Background 2. All-India Area Coverage, Productivity, and Production of Soybean between 1970- 2003 3. All-India State-wise Area Coverage, Productivity, and Production of Soybean 4. Regional Distribution of Soybean Cultivars 5. Regional Agricultural Aspects of Soybean Cultivation Acknowledgements References 5: Soybean Cultivation and BNF in China J. E. Ruiz Sainz, J. C. Zhou, D.-N. Rodriguez-Navarro, J. M. Vinardell and J. E. Thomas-Oates 1. Summary 2. Soybean Cultivation in China: Historical Aspects and Current Situation 3. Nitrogen-Fixing Bacteria that Nodulate Soybean 4. The Soybean Germplasm Collection in China 5. Soybean in Crop Rotation and in Continuous Culture 6. Conclusions Acknowledgement References 6: Soil Stress Factors Influencing Symbiotic Nitrogen Fixation M. J. Sadowsky 1. Introduction 2. Importance of Symbiotic Nitrogen Fixation 3. Symbiotic Interaction of Legumes with Rhizobia 4. Nodulation and Nitrogen-Fixation Genetics in the Rhizobia and Bradyrhizobia 5. Rhizobia in the Soil Environment 6. Stress Factors in the Soil Environment that Influence N2 Fixation 7. Concluding Remarks References 7: Nodulated Legume Trees J. I. Sprent 1. Introduction 2. Leguminosae 3. Rhizobia that Nodulate Legume Trees 4. Types of Nodules formed on Trees 5. Mycorrhizas and Other Nutrient-Acquisition Systems 6. Measurement of Nitrogen Fixation by Trees 7. Role of Legume Trees in Natural and Managed Systems References 8. Nitrogen Fixing Trees with Actinorhiza in Forestry and Agroforestry R. O. Russo 1. Introduction 2. General Characteristics of the Actinorhizal Symbiosis 3. Host Botanical Families 4. Nitrogen Fixation in Actinorhizal Trees 5. Mycorrhizal Associations with Actinorhizal Trees 6. Actinorhizal Trees in Agroforestry 7. The Genus Casaurina 8. The Experience of the Central America Fuelwood Project 9. The Case of Alnus acuminata in Tropical Highlands 10. Other Uses of Actinorhizal Trees 11. Concluding Considerations References 9: Molecular Ecology of N2-fixing Microbes Associated with Gramineous Plants: Hidden Activities of Unknown Bacteria T. Hurek and B. Reinhold-Hurek

187 citations

Journal ArticleDOI
01 Jan 2004-Planta
TL;DR: It was shown that the hydrogen uptake activity is linked to the nitrogenase activity, whereas the hydrogen evolution activity of the bidirectional hydrogenase is not dependent or even related to diazotrophic growth conditions.
Abstract: Several unicellular and filamentous, nitrogen-fixing and non-nitrogen-fixing cyanobacterial strains have been investigated on the molecular and the physiological level in order to find the most efficient organisms for photobiological hydrogen production. These strains were screened for the presence or absence of hup and hox genes, and it was shown that they have different sets of genes involved in H2 evolution. The uptake hydrogenase was identified in all N2-fixing cyanobacteria, and some of these strains also contained the bidirectional hydrogenase, whereas the non-nitrogen fixing strains only possessed the bidirectional enzyme. In N2-fixing strains, hydrogen was mainly produced by the nitrogenase as a by-product during the reduction of atmospheric nitrogen to ammonia. Therefore, hydrogen production was investigated both under non-nitrogen-fixing conditions and under nitrogen limitation. It was shown that the hydrogen uptake activity is linked to the nitrogenase activity, whereas the hydrogen evolution activity of the bidirectional hydrogenase is not dependent or even related to diazotrophic growth conditions. With regard to large-scale hydrogen evolution by N2-fixing cyanobacteria, hydrogen uptake-deficient mutants have to be used because of their inability to re-oxidize the hydrogen produced by the nitrogenase. On the other hand, fermentative H2 production by the bidirectional hydrogenase should also be taken into account in further investigations of biological hydrogen production.

187 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023390
2022831
2021263
2020240
2019250
2018261