Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture: Proceedings of the 15th International Nitrogen Fixation Congress and the 12th International Conference of the African Association for Biological Nitrogen Fixation

Front Matter....Pages i-xxix
Gene Discovery and Marker Development in Crop Legumes....Pages 3-7
Nutrient Mining or Carbon Sequestration? BNF Inputs Can Make the Difference....Pages 11-14
Tripartite Symbiotic System of pea ( Pisum sativum L. ): Applications in Sustainable Agriculture....Pages 15-17
Plant Growth-Promoting Diazotrophs: Optimising their Role as Key Agents in Achieving More Efficient Nutrient Use by Field Crops....Pages 19-22
Multi-Factor Approach to Identifying Cowpea Genotypes with Superior Symbiotic Traits and Higher Yield for Africa....Pages 23-24
BNF Applications for Poverty Alleviation....Pages 25-26
Biological Nitrogen Fixation in Resource-Poor Agriculture in South Africa....Pages 27-28
Combating Food Insecurity on Sandy Soils in Zimbabwe: The Legume Dilemma....Pages 29-30
Nitrogen Fixation in Agriculture: Forage Legumes in Sweden as an Example....Pages 31-32
Biological Nitrogen Fixation with the Soybean and Common Bean Crops in the Tropics....Pages 33-34
Biodiversity in Amazonian Dark Earth: A Contribution for the Sustainability of Tropical Soils from the Microbial Symbioses....Pages 35-36
Techniques for the Quantification of Plant-Associated Biological Nitrogen Fixation....Pages 37-41
Measuring N 2 Fixation in Legumes Using 15 N Natural Abundance: Some Methodological Problems Associated with Choice of Reference Plants....Pages 43-45
How to Quantify Biological Nitrogen Fixation in Forage Legumes in the Field....Pages 47-48
Nodular Diagnosis for Integrated Improvement of Symbiotic Nitrogen Fixation in Cropping Systems....Pages 51-55
Evaluation of Seed and Liquid Inoculation on Biological Nitrogen Fixation and Grain Yield of Soybean....Pages 57-58
Initiation, Localization, and Growth of Nodules within the Root System of Pea as Affected by Assimilate Availability....Pages 59-60
Enhanced Early Nodulation of Medicago Truncatula Co-Inoculated with Sinorhizobium Medicae and Achromobacter Xylosoxidans ....Pages 61-62
Gene Transfer in the Environment Promotes the Rapid Evolution of a Diversity of Suboptimal and Competitive Rhizobia for Biserrula pelecinus L.....Pages 63-64
Effect of a Genetically Modified Rhizobium leguminosarum Strain on Bacterial and Fungal Diversity in the Rhizosphere of Pisum sativum ....Pages 65-66
Inoculants for Sugar Cane: The Scientific Bases for the Adoption of the Technology for Biofuel Production....Pages 67-68
Detection and Enumeration of Plant Growth-Promoting Bacteria....Pages 69-70
Nodulated Tree Legumes and Their Symbiotic Bradyrhizobium in African and South-American Tropical Rainforests....Pages 73-75
Innovative Microbial Approaches to the Management of Acacia senegal Trees to Improve and Sustain Gum-Arabic Production in Sub-Saharan Africa....Pages 77-78
 Acacia Species Used for Revegetation in South-Eastern Australia Require More than One Multi-Strain Rhizobial Inoculant....Pages 79-80
Management of Symbionts in Calliandra ( Calliandra calothyrsus Meisn., Leguminosae) Based Agroforestry Systems to Improve Growth, Productivity, Quality of Fodder, and Biological N 2 Fixation....Pages 81-82
Legume Trees in the Coffee Agroecosystem of Puerto Rico....Pages 83-84
Nodulation Adapted to Habitat Submergence....Pages 85-86
Mechanism of Quick and Reversible Inhibition of Soybean Nodule Growth and Nitrogen Fixation Activity by Nitrate and its Metabolites....Pages 89-90
Inhibition of Symbiotic Nitrogen Fixation by Dark Chilling in Soybean....Pages 91-92
Do Nodule Phosphatase and Phytase Link with the Phosphorus Use Efficiency for N 2 -Dependent Growth in Phaseolus vulgaris ? ....Pages 93-94
The Alternative Sigma Factor rpoH2 is Required for Salt Tolerance in Sinorhizobium sp. Strain BL3....Pages 95-96
Root-Nodule Bacteria of Arid-Zone Legumes for Use in Rehabilitation in the Shark Bay World Heritage Area....Pages 97-98
Effect of Vegetation Clearing on the Nitrogen Cycle and Water Resource Quality in South Africa....Pages 99-100
Biorhizoremediation of Heavy Metals Toxicity Using Rhizobium -Legume Symbioses....Pages 101-104
The Commercialisation of Small Holder Agriculture Through Biological Nitrogen Fixation (BNF) in Soybean....Pages 107-107
Estimates of N 2 Fixation in Cowpea Grown in Farmers’ Fields in the Upper West Region of Ghana....Pages 109-109
Integrating N 2 -Fixing Legumes, Soils, and Livelihoods in Southern Africa: A Consortium Approach....Pages 111-111
Distribution of Promiscuous Soyabean Rhizobia in Some Zimbabwean Soils....Pages 113-113
Ecophysiological Studies of Legumes in Botswana: Types of Bacterial Strains from Root Nodules of Cowpea ( Vigna unguiculata L. Walp.) and an Assessment of the Symbiotic Status of Grain Legumes Using 15 N Natural Abundance....Pages 115-116
Symbiotic N Nutrition and Yield of Cowpea Genotypes under Different Plant Densities and Cropping Systems....Pages 117-117
The Diversity of Root Nodule Bacteria Associated with Lebeckia Species in South Africa....Pages 119-120
Rhizobial Diversity Associated with South African Legumes....Pages 121-122
Diversity and Competitiveness of Rhizobia of the Legume Tree Acacia Nilotica in Senegal....Pages 123-123
Effects of Rock Phosphate on Indigenous Rhizobia Associated with Sesbania sesban ....Pages 125-126
Effect of Added Fertilizers on N 2 Fixation and Plant Performance of Shrubby Legumes....Pages 127-128
Genetic Diversity of Acacia seyal Del. Rhizobial Populations Indigenous to Senegalese Soils in Relation to Salinity and pH of the Sampling Sites....Pages 129-130
Potential Effects of Elevated UV-B Radiation on N 2 -Fixing Legumes in Agricultural Systems....Pages 131-131
Arbuscular Mycorrhizal Colonization and Nodulation Improve Flooding Tolerance in Pterocarpus officinalis jacq. Seedlings....Pages 133-134
Mycorrhizal Colonization Improves Growth and Nutrition of an Invasive Legume in a Mediterranean Ecosystem....Pages 135-136
Nutritional and Photosynthetic Performance of Invasive and Indigenous Legumes in a Mediterranean Ecosystem....Pages 137-138
Ecology and Phytochemical Analysis of the Medicinal Legume, Sutherlandia frutescens (L.)R. Br., at Two Locations....Pages 139-139
Improving Chickpea Inoculation in the Northern Cropping Region of Australia....Pages 141-141
Optimizing Chickpea Nodulation for Nitrogen Fixation and Yield in North-Western New South Wales, Australia....Pages 143-143
Investigating Nitrogen Fixation in the Medicago-sinorhizobium Symbiosis....Pages 145-145
Non-Symbiotic Nitrogen Fixation in Soil, Litter, and Phyllosphere in Dry Chaco Forest of Argentina....Pages 147-147
Inoculation and Competitiveness of a Bradyrhizobium sp. Strain in Soils Containing Indigenous Rhizobia....Pages 149-149
Diverse Role of Diazotrophs in the Rhizosphere....Pages 151-151
Role of Nature’s Fertility Partners with Crop Protectants for Sustainable Agriculture....Pages 153-154
Characterization of Bradyrhizobia Isolated from Root Nodules of Cytisus triflorus in the Rif Occidental of Morocco....Pages 155-155
Diversity of Rhizobia Isolated from Nodules of Peanut ( Arachis hypogaea L.) in Morocco....Pages 157-157
Diversity of Rhizobia that Nodulate Colutea arborescens Isolated from Different Soils of Morocco....Pages 159-159
Diversity of Rhizobia that Nodulate two Mediterranean Legumes, Adenocarpus decorticans and Retama menosperma ....Pages 161-161
Response of Common Bean and Fababean to Effective Nodulation in Salt- and Drought-Stressed Areas Around the Nile Delta....Pages 163-163
Nod-Factor Perception in Medicago truncatula ....Pages 167-171
Nodulation Control in Legumes....Pages 173-176
Bacteroid Differentiation is Linked to Evolution of High Diversity of Secreted Peptides in the Host Plant....Pages 177-180
Functional Genomics of Soybean Root-Hair Infection....Pages 181-182
Regulation of Nodule Organogenesis by Auxin Transport and Flavonoids....Pages 183-184
Legume Agp-Extensins in Rhizobium Infection....Pages 185-187
Glycoside Hydrolases from Legumes and Rhizobia at the Symbiotic Interface....Pages 189-190
Transcript Profiling of Nodule Senescence in Medicago truncatula Delineates Distinct Phases and Mechanisms....Pages 191-192
Comparison of Leaf Growth of Hypernodulation Soybean Mutants, NOD1-3, NOD2-4 and NOD3-7, with their Parent CV. Williams....Pages 193-194
Actinorhizal Nodules and Gene Expression....Pages 195-199
Characterization of Glutathione S-Transferases from Legume Root Nodules....Pages 203-204
Overexpression of Flavodoxin in Alfalfa Nodules Leads to Delayed Senescence and High Starch Accumulation....Pages 205-206
Effects of the Overexpression of a Soybean Cytosolic Glutamine Synthetase Gene ( GS15 ) Linked to Organ-Specific Promoters on Growth and Nitrogen Accumulation of Pea Plants....Pages 207-209
Role of PEPc Isoforms in Phosphate-Deficient Nodules....Pages 211-212
Over-Expression of the Class 1 Hemoglobin Gene Contributes to Symbiotic Nitrogen Fixation....Pages 213-214
Structural and Comparative Genome Analysis of Lotus japonicus ....Pages 217-219
Novel Symbiotic Regulatory Genes Identified by Transcriptomics in Medicago truncatula ....Pages 221-222
Genome Synteny of Pea and Model Legumes: From Mutation through Genetic Mapping to the Genes....Pages 223-224
The Medicago truncatula lin Mutant: Caught by Map-Based Cloning, Characterised by Transcriptomics....Pages 225-226
Proteomic Analysis of Secreted Proteins of Glycine max and Medicago spp. ....Pages 227-228
Proteomic and Transcriptomic Approaches to Study Global Genome Expression in Rhizobium etli and Sinorhizobium meliloti ....Pages 231-232
Control and Action of the Transcriptional Regulator TtsI of Rhizobium sp. NGR234....Pages 233-234
Symbiotic Roles and Transcriptional Analysis of the Type III Secretion System in Mesorhizobium loti ....Pages 235-235
Toxin-Antitoxin Modules and Symbiosis....Pages 237-238
Comparative Analysis of ArgC Protein Expression in Rhizobium Species....Pages 239-240
Genistein-Dependent Regulatory Circuits in Bradyrhizobium japonicum ....Pages 241-242
 Rhizobium leguminosarum Modification of Its Lipopoly-Saccharide During Symbiotic Bacteroid Development....Pages 243-244
Altered Formations of Special Eubacterial Membrane Lipids Affect Bacterial Interactions with Eukaryotic Hosts....Pages 245-246
 Rhizobium leguminosarum bv viciae Strain LC-31: Analysis of Novel Bacteriocin and ACC Deaminase Gene(s)....Pages 247-248
Infection of Legumes by Beta-Rhizobia....Pages 249-250
In Search of Beta-Rhizobia: Exploring the Symbionts of Mimosa in Brazil....Pages 251-252
Effect of Phosphoglycerate Mutase Deficiency on the Free-Living and Symbiotic Life of Burkholderia phymatum ....Pages 253-254
Living Large: Elucidation of the Frankia EAN1pec Genome Sequence Shows Gene Expansion and Metabolic Versatility....Pages 255-255
Phosphate-Dependent Gene Expression in Free-Living and Symbiotic Sinorhizobium meliloti ....Pages 259-259
Characterization of Bradyrhizobium elkanii Type III Secretion System....Pages 261-261
Search for Nodulation Gene Inducer for Mesorhizobium loti Secreted from Roots of Lotus corniculatus ....Pages 263-263
Identification of BetX, a Periplasmic Protein Involved in Binding and Uptake of Proline Betaine and Glycine Betaine in Sinorhizobium meliloti ....Pages 265-265
H 2 O 2 is Required for Optimal Infection-Thread Formation During Sinorhizobium meliloti Symbiosis....Pages 267-267
Molecular Approaches for the Characterization of Bradyrhizobium Strains....Pages 269-270
Genotypic and Phenotypic Variations Among Rhizobia Nodulating Red Clover in Soils of Northern Scandinavia....Pages 271-271
NH 4 + Nutrition Affects the Photosynthetic and Respiratory C Sinks in the Dual Symbiosis of a Mycorrhizal Legume....Pages 273-274
The Effect of P Nutrition on AM Colonization, Nodule Development and the N and C Metabolism of Phaseous vulgaris ....Pages 275-276
Effects of Al 3+ Toxicity on Photosynthetic and Respiratory Responses of Phaseolus vulgaris under P Deficiency....Pages 277-277
Assimilate Allocation Between the Organic Acid and Amino Acid Pools in Lupinus angustifolius under P Stress....Pages 279-280
African Species Belonging to the Tribe Psoraleeae Produce Ureides, a Symbiotic Trait Characteristic of the Phaseoleae....Pages 281-281
New Look at Old Root-Nodule Bacteria: Molecular Techniques Uncover Novel Isolates....Pages 283-284
Characterization of a Novel Non-Rhizobial Symbiont from Cicer arietinum ....Pages 285-285
 Burkholderia tuberum Effectively Nodulates Cyclopia spp., but Not Aspalathus spp.....Pages 287-288
Endosymbiosis Formation Between a Nitrogen-Fixing Mix of Bacteria ( Xanthomonas sp. + Arthrobacter sp. ) and Wheat Root Cells....Pages 289-289
Integrating Sinorhizobium meliloti Genomics: An Expression Library of the Genome....Pages 293-295
Full Genome Sequence of Azotobacter vinelandii : Preliminary Analysis....Pages 297-298
Transcriptional Profile of Bradyrhizobium elkanii Semia 587 in Symbiosis with Soybean ( Glycine max L. Merrill) Analyzed by DNA Microarray....Pages 299-300
Chronos, Chairos and Co-Evolution in Rhizobium -Legume Symbioses....Pages 301-302
Genomics and Evolution of Bacteria: Nodulation, Nitrogen Fixation and the Rest of the Accessory Genome....Pages 303-304
Evolution of Functional Diversity in Nitrogenase Homologs....Pages 305-306
Diversity of Nitrogen Fixing Bacterial Community Assessed by Molecular and Microbiological Techniques....Pages 309-311
Quorum Sensing in Root-Associated and Endopytic Diazotrophs....Pages 313-315
Characterization of CHSA , a New Gene Controlling the Chemotactic Response in Azospirillum brasilense SP7....Pages 317-318
Exopolysaccharide Production and Cell Aggregation in Azospirillum brasilense ....Pages 319-320
 Gluconacetobacter diazotrophicus Pal5 Strain: Selection and Characterization of Mutants Deficient in Nitrogen-Fixation Ability....Pages 321-322
The Role of Nif Proteins in Nitrogenase Maturation....Pages 325-328
NifB-Dependent “ in vitro ” Synthesis of the Iron-Molybdenum Cofactor of Nitrogenase....Pages 329-330
 Azotobacter vinelandii Nitrogenase MoFe Protein: Pre-Steady State Spectroscopic Studies of the Metal Cofactors....Pages 331-333
The Role of Iron Protein-Nucleotide Interaction and Conformational Change in Nitrogenase Catalysis....Pages 335-338
The Mechanistic Basis of nif Gene Activation....Pages 339-340
Architecture of σ 54 -Dependent Promoters: Interplay Between CRP-cAMP and P II -NTR Systems Forms a Novel Regulatory Network Between Carbon Metabolism and Nitrogen Assimilation in Escherichia coli ....Pages 341-342
Signals in the Regulation of Nitrogen Fixation and Ammonium Assimilation in the Photosynthetic Bacterium Rhodospirillum rubrum ....Pages 345-346
Defining the Roles P II and AmtB Proteins in the NH 4 + -Induced Post-Translational Control of Nitrogenase Activity....Pages 347-349
Metabolic Regulation of Nitrogen Fixation in Rhodospirillum rubrum and Evidence for an Energy-Dependent Ammonium Transport System....Pages 351-352
Membrane Sequestration of P II Proteins and Nitrogenase Regulation in Rhodobacter capsulatus ....Pages 353-354
Molybdenum Regulation of Nitrogen Fixation and Mo-Metabolism in Rhodobacter capsulatus ....Pages 355-356
Hydrogen Production by Cyanobacteria as a Potential Tool in Energy-Conversion Programmes....Pages 357-360
Regulatory Interactions Involved in Nitrogen Signalling in Cyanobacteria: Partner Swapping and Role of PipX-PII Complexes in Synechococcus sp. PCC 7942....Pages 361-362
Intercellular Transfer of Nitrogen in Heterocyst-Forming Cyanobacteria....Pages 363-364
Genomics and Systems Biology Analysis of Cyanothece sp. ATCC 51142, a Unicellular, Diazotrophic Cyanobacterium with Robust Metabolic Rhythms....Pages 365-368
 Sinorhizobium Arboris Genes Are Differentially Expressed under Salt Stress....Pages 371-371
Thiol-Redox Potential in Melanin Production and Nitrogen Fixation by Sinorhizobium meliloti ....Pages 373-373
Use of Chimeric Proteins to Investigate the Role of the GAF Domain of Herbaspirillum seropedicae NifA in the Response to Fixed Nitrogen....Pages 375-376
Molecular Characterization of Symbiotic Bacteria Associated with the Pasture Legume Ornithopus sp. Native to Portugal....Pages 377-378
Siderophore Genes in Gram Positive and Gram Negative Nitrogen-Fixing Bacteria....Pages 379-380
Genomics and Genetic Transformation in the Unicellular Diazotrophic Cyanobacterium Cyanothece sp. ATCC 51142....Pages 381-381
Sipa, a Novel Regulator of the Photosynthesis-Related Sensor Histidine Kinase NblS....Pages 383-383
Back Matter....Pages 385-392