Nitrogen Fixation: From Molecules to Crop Productivity

Nitrogen Fixation in Perspective....Pages 3-8
Chemistry and Biochemistry of Nitrogenase....Pages 11-12
The Mechanism of Molybdenum Nitrogenase: An Overview....Pages 13-18
Roles for Nucleotides in Nitrogenase Catalysis....Pages 19-22
Superoxide-Dependent Nitrogen Fixation....Pages 23-30
Chemistry and Biochemistry of Nitrogenase (Part 1)....Pages 31-32
A 1.6A Resolution X-Ray Crystallographic Study of Klebsiella Pneumoniae MoFe Protein, Kp1....Pages 33-34
Roles of VnfX and NifX in FeV-Co and FeMo-Co Synthesis in Azotobacter Vinelandii ....Pages 35-36
Studies on the Mechanism for the Activation of Iron and Sulfur for Formation of the Nitrogenase Metal Centers....Pages 37-38
Stopped-Flow Infra-Red Spectroscopy of Carbon Monoxide Binding to Functioning Nitrogenase....Pages 39-40
Reductant-Dependant ATP Utilization During Nitrogenase Catalysis: Studies Using Ti(III)....Pages 41-42
Cofactor Reactivity and Models for Cofactor Reactions....Pages 43-44
Interactions of Small Molecules with Isolated Femoco....Pages 45-46
Catalytic Reactions with Femoco in Non-Enzymatic Surroundings (Comparison with Synthetic Catalysts)....Pages 47-48
Catalytic Behavior of Isolated FeMo-Cofactor of Nitrogenase in Non-Protein Surroundings....Pages 49-50
Chemical Nitrogen Fixation: Protonation of Coordinated Dinitrogen with Coordinated Dihydrogen or Bridging Hydrosulfido Ligands....Pages 51-52
Mo, V and Fe Complexes of Tripodal Sulfur-Donor Ligands as Models for Nitrogenase Active Sites....Pages 53-54
The Use of Chemical Models to Probe the Mechanisms of Substrate Reduction Reactions of Nitrogenases....Pages 55-56
Nitrogenase Reactivity Using Ti(III) as Reductant....Pages 57-57
Re-Evaluation of the Kinetics of Nitrogen Fixation....Pages 58-58
Characterization of the E146D Fe Protein Mutant of Azotobacter Vinelandii: Function in Nitrogenase Turnover, Femo Cofactor Biosynthesis and Insertion....Pages 59-59
Substrate-Reduction Properties of the α195 ASN A. vinelandii Nitrogenase Mofe Protein....Pages 60-60
Studies on a Proteolytic Activity Towards Nitrogenase in Rhodospirillum rubrum ....Pages 61-61
A New Route to the Synthesis of Trinuclear Complexes Containing V II and Fe II ....Pages 62-62
Complexes of V III/IV with Deprotonated Alditols and Monosaccharides....Pages 63-63
Regulation of Nif Gene Expression in Free-Living Diazotrophs: Recent Advances....Pages 67-72
Activation of Transcription by the Sigma-54 RNA Polymerase Holoenzyme....Pages 73-77
New Mechanisms of Bacterial Gene Regulation in a Nitrogen-Fixing Phototroph....Pages 79-82
Regulation of Nitrogen Fixation and Glutamine Synthetase in Herbaspirillum seropedicae ....Pages 83-86
Analysis of Bacterial Gene Expression During the Late Stages of the Interaction Between Rhizobium etli CNPAF512 and Phaseolus vulgaris ....Pages 87-88
Functional Analysis of the Bradyrhizobium japonicum Regsr Two-Component Regulatory System....Pages 89-90
Role of Herbaspirillum seropedicae Nifa Domains on the Expression of nif Genes....Pages 91-92
Characterization of an Azospirillum brasilense Tn5 Mutant with Enhanced Nitrogen Fixtation....Pages 93-94
AmtB is Necessary for NH 4 + Induced Nitrogenase Switch-Off and Adp-Ribosylation in Rhodobacter capsulatus ....Pages 95-96
Regulation of Azotobacter vinelandii Nifa Activity by Nifl: Role of PII-Like Proteins in Nitrogen Sensing....Pages 97-98
Structural Basis for Signal Transduction within the FixJ Transcriptional Activator....Pages 99-100
Effect of Redox Status of Dinitrogenase Reductase on the Regulation of Nitrogenase activity by Reversible ADP-Ribosylation....Pages 101-102
Heterotrimerization of PΠ-Like Signalling Proteins: Lessons from a Comparative Analysis between a Cyanobacterial PΠ Homologue and its Proteobacterial Counterparts....Pages 103-104
Role of PII Protein as a Signal Nitrogen Level in Herbaspirillum Seropedicae ....Pages 105-106
Modification of the PII Protein in Response to Nitrogen Availability in Filamentous Heterocystous Cyanobacteria Anabaena sp. PCC 7120....Pages 107-107
Effect of Rhizobium Respiratory Mutants on the Regulation of Carbon and Nitrogen Assimilation in Phaseolus vulgaris Nodules....Pages 108-108
Immunogold Localisation of Glutamine Synthetase in Medicago truncatula Root Nodules....Pages 109-109
Long-Term Effects of CO 2 Enrichment on Nitrogen Fixation and Nodule Metabolism in Pisum sativum L. Plants....Pages 110-110
Protein: Protein Interactions between the Enhancer Binding Protein, NIFA and the Sensor NIFL....Pages 111-111
Urea Utilization in Rhodobacter capsulatus is Regulated by NtrC....Pages 112-112
Structure and Regulation of Pyruvate Dehydrogenase Genes from Sinorhizobium meliloti ....Pages 113-113
Involvement of the rec X Gene Product in the SOS Response of the Diazotroph Herbaspirillum secropedicae ....Pages 114-114
Molecular Analysis of three Structurally Similar but Functionally different PΠ-Like Signal Transmitter Proteins in the Diazotroph Azoarcus sp. BH72....Pages 115-115
Essential DNA Sequence for NifA Expression in Azospirillum brasilense ....Pages 116-116
Differential Expression Of fixNOQP Reiterated Genes in Rhizobium etli by a Novel fixL * -fixK Cascade....Pages 117-117
Nitrogen Fixation Genes Contiguous with the nifHDK Genes of Herbaspirillum seropedicae ....Pages 118-118
Expression and Purification of the GlnB and GlnZ Proteins of Azospirillum brasilense Strain FP2....Pages 119-119
Expression and Restoration of nif + Phenotype to Azotobacter vinelandii and Azospirillum brasilense Mutants by Acetobacter diazotrophicus nifA ....Pages 120-120
Studies on the Roles of Glnk and PII in Regulating Klebsiella Pneumoniae NifL-Dependent Nitrogen Control....Pages 121-121
The Azospirillum brasilense Two-Component Regulatory System Composed by NtrY and NtrX Proteins is Involved in the Regulation of Nitrogen Fixation....Pages 122-122
Characterization and Functional Analysis of the Chromosomal NifA Region of Acetobacter diazotrophicus ....Pages 123-123
Purification and Binding Analysis of NifA Protein from Azospirillum Brasilense ....Pages 124-124
The Expression of nifB Gene from Herbaspirillum seropedicae is Dependent Upon the NifA and RpoN Proteins....Pages 125-125
Physiological Characterization of the Operon glnAntrBc of Herbaspirillum seropedicae ....Pages 126-126
Partial Cloning of the Ammonium Transporter Genes of Azospirillum Brasilense and Herbaspirillum seropedicae ....Pages 127-127
Functional Difference between the PII Proteins from Herbaspirillum Seropedicae and Klebsiella pneumoniae ....Pages 128-128
Ammonium and Molybdenum Regulation of the Molybdenum Nitrogenase and the Alternative Nitrogenase in Rhodobacter Capsulatus ....Pages 129-129
Genetic Characterization of Nif Constitutive Mutants of Azospirullum brasilense ....Pages 130-130
Functions of the σ 54 Region I in trans and Implications for Transcription Activation....Pages 131-131
RpoN-Dependent Transcriptional Activators and the RpoN Operon of a Nitrogen-Fixing Pseudomonas stutzeri Strain....Pages 132-132
NIFl of Klebsiella pneumoniae : Redox Characterization in Relation to the Nitrogen Source....Pages 133-133
Transcription Mediated by AnfA and VnfA of Azotobacter vinelandii Responds to Mo and V Availability....Pages 134-134
Dual Role for the Integration Host Factor at an Enhancer-Dependent nifA Promoter....Pages 135-135
Nodule Specific Modulation of Glutamine Synthetase in Transgenic Medicago truncatula ....Pages 136-136
Identification and Characterization of Genes Involved in the Ammonium Sensing Mechanism in Acetobacter diazotrophicus ....Pages 137-137
Functional Analysis of nifHdk Operon of Herbaspirillum seropedicae ....Pages 138-138
Role of PII-Like Proteins in Nitrogen Sensing by Azotobacter vinelandii Nifl and Nifa....Pages 139-139
Symbiosis-Specific Transcriptional Control of Rhizobium etli Rpon2 ....Pages 140-140
Genetics of Nitrogen Fixation in Rhodobacter capsulatus : Ammonium and Molybdenum Control of Both Nitrogenase Systems....Pages 141-142
Electron Transport Pathway to Nitrogenase in Rhodobacter Capsulatus RNF complex and its Relatives in Non-Diazotrophs....Pages 143-144
Photosynthesis in Aeschynomene Bradyrhizobium sp. ORS278: Genetic analysis and Role in Symbiosis....Pages 145-146
The Concerted Action of Hydrogenases and Nitrogenases in Cyanobacteria....Pages 147-148
Heterocyst Pattern Controlled by an Inhibitory Peptide in Anabaena ....Pages 149-149
The Element Nitrogen in the Philatelic World....Pages 150-150
Taxonomy and Evolution of Diazotrophs....Pages 153-154
Ecological, Phylogenetic and Taxonomic Remarks on Diazotrophs and Related Genera....Pages 155-160
Molecular Evolution in Diazotrophs: Do the Genes Agree?....Pages 161-164
Phylogeny of Rhizobia....Pages 165-169
Genetics of Nostoc in Relation to Host Plant Species....Pages 171-175
Origin and Evolution of nif Genes....Pages 177-178
Characterization of Nitrogen-Fixing Bacteria Containing Molybdenum-Independent Nitrogenases from Diverse Natural Environments....Pages 179-180
Biodiversity of Rhizobia from a Wide Range of Forest Leguminosae Species in Brazil....Pages 181-182
Biodiversity and Selection of Sinorhizobium fredii Strains for Soybean Inoculants....Pages 183-184
Taxonomy of the Acetobacteraceae Family....Pages 185-186
Diversity in the Bean Nodulating Rhizobial Population of North West of Argentina....Pages 187-188
Characterization of Rhizobium lupinus from near the Parana River (Argentina) by PCR-RFLP....Pages 189-189
Nitrogen-Fixing Bacteria Isolated from Forest Soils in Finland....Pages 190-190
Genotypic and Phenotypic Characterization of Soybean Sinorhizobial Strains Isolated from Brazilian Soils....Pages 191-191
Soybean Bradyrhizobia Strains Isolated from Brazilian Soils Under Native Vegetation....Pages 192-192
Grouping of Rhizobium Isolates from Nodules of Cowpea ( Vigna Unguiculata ) Cultivated in Soil Samples from the Brazilian Northeast Region by Elisa Method....Pages 193-193
Characterization of Soybean Bradyrhizobia Strains Adapted to the Brazilian Savannas....Pages 194-194
Genotypic Diversity of Bradyrhizobium Strains of Tropical and Temperate Origin and the Identification of a New Genomic Species Nodulating Endemic Woody Legumes (Fabaceae: Genisteae) from the Canary Islands....Pages 195-195
Diversification of Some Forage Legumes Rhizobia Isolated in Thailand....Pages 196-196
 Azorhizobium johannense Sp. Nov. and Sesbania virgata (CAZ.) Pers.: A Highly Specific Symbiosis....Pages 197-197
Diazotrophs That Group Within the Pseudomonadaceae Based on Phylogenetic Evidence....Pages 198-198
Genotypic, Phenotypic and Symbiotic Diversity Amongst Rhizobia Isolates from Phaseolus vulgaris L. Growing in the Amazon Region....Pages 199-199
Diversity of Bradyrhizobium Strains Isolated from Endemic Woody Legumes of the Canary Islands by PCR-Restriction Fragment Length Polymorphism Analysis of 16S rDNA and Low-Molecular-Weight Rna Profiles....Pages 200-200
Molecular Characterization of new Diazotroph Genotypes from Musa Spp. and Ananas Spp.....Pages 201-201
Characterization of Sinorhizobium fredii Strains Isolated from China Soils....Pages 202-202
Diversity in the Mcrosymbiont Population Associated with Wild Beans from the North West of Argentina....Pages 203-203
The Noda Sequence of Rhizobia Gives Clues on Structural Features of Nod Factors....Pages 204-204
Phylogenetic Comparison of Symbiotic ( NodC and NifH ) and 16S rRNA Genes in Strains of Rhizobium, Mesorhizobium and Bradyrhizobium Isolated from Astragalus, Oxytropis and Onobrychis Spp.....Pages 205-205
Identification of Putative Nif dk Genes in the Genome of a. Burkholderia Living in Symbiosis with an Arbuscular Mycorrfflzal Fungus....Pages 206-206
Rhizobial Populations Nodulating Leucaena leucocephala, Mimosa affinis , and Sesbania herbacea in Mexican Soils....Pages 207-207
Control of Nodulation in Legume Symbiosis....Pages 211-212
Perception of Lipochitooligosaccharidic Nod Factors in the Legume Rhizobia Symbiosis: Studies on Medicago Nod Factor Binding Sites....Pages 213-217
Use of GFP to Study Factors Involved in the Lotus japonicus Symbiosis....Pages 219-222
Cell Cycle Control in Root Nodule Organogenesis....Pages 223-226
Nod Factor Reception....Pages 227-230
Functional Characterization of a Krüppel-Like Zinc Finger Gene Induced During Nodule Development....Pages 231-232
Suppression of Plant Defence Reactions in Alfalfa Cell Cultures by Sinorhizobium meliloti Surface Carbohydrates....Pages 233-234
Invasion of Alfalfa Root Nodules by the Nitrogen-Fixing Bacterium Rhizobium meliloti ....Pages 235-236
Structure and Development of Infection Threads....Pages 237-238
Unusual LPS Structural Features and Symbiotic Function....Pages 239-240
Two Bradyrhizobium japonicum Genes Encoding Putative Sensor Proteins....Pages 241-242
Differential Expression Pattern of two Apyrase Cdnas Expressed in the Roots of Soybean ( Glycine soja )....Pages 243-243
Use of Pea ( Pisum sativum L. ) Mutants Impaired in Nodulation and Root Formation to Study the Role of Phytohormones in Nodule Development....Pages 244-244
Rhizobium Bacteroids Express Hydrophobic Lipopolysaccharides....Pages 245-245
Characterization of a Chromosomal Nodi Homolog....Pages 246-246
Glycosyl Sequence and Unique Features of the O-Polysaccharide from the Rhizobium etli CE3 Lipopolysaccharide....Pages 247-247
Involvement of the Secreted Expe1 Protein and its Transport System in the Biosynthesis of Galactoglucan by Sinorhizobium meliloti ....Pages 248-248
 Rhizobium Sp. BR816 Produces a Mixture of Classical Nod Factors and Novel Nod Factor Like Structures with a N -Acetyl Glucosaminitol as the Reducing Sugar....Pages 249-249
Identification of Putative Signal Peptidase Substrates in Bradyrhizobium japonicum ....Pages 250-250
Requirements of Sinorhizobium meliloti Surface polysaccharides for an Effective Nodulation Depend on the Species of the Medicago Host....Pages 251-251
 ndvD , A New Gene Involved in Cyclic □-Glucan Synthesis in Bradyrhizobium japonicum ....Pages 252-252
Boron-Calcium Relationship in Nodulation and Nodule Organogenesis....Pages 253-253
Expression of the Bradyrhizobium japonicum Nola Gene in Response to Chemically Distinct Soybean Inducers....Pages 254-254
Is Ethylene Involved in Nodule Initiation On Sesbania rostrata ?....Pages 255-255
Mutation in Pea ( Pisum sativum L.) Symbiotic Gene Sym31 Affects the Expression of Rhizobium legumnosarum Bv. Viciae Vf39 Gene dctA and Not that of fixNc ....Pages 256-256
 ILvc Mutants Reveal Novel Complexity on Signal Exchanges Between Sinorhizobium meliloti and Alfalfa....Pages 257-257
Characterization of A Functional Nifa-δ 54 -Type Promoter Upstream of the Azorhizobium caulinodans Noda Gene....Pages 258-258
Possible Role for Diamine Oxidase in Infection Threads....Pages 259-259
Cysteine Protease Localisation in Pea Root Nodules....Pages 260-260
Oxalate Oxidase Activity in Pea Root Nodules....Pages 261-261
Pea ( Pisum sativum L.) Gene Sym33 can Play a Role in Ethylene Dependent Regulation of Nodulation....Pages 262-262
Analysis of Medicago truncatula Aux1 -Like Genes, Encoding Putative Auxin Influx Carriers: Are they Involved in Rhizobium -Induced Nodule Organogenesis?....Pages 263-263
Regulation of Rhizobium tropici CIAT899 Nodhpq Genes and its Role in Host Range Determination....Pages 264-264
Expression of a Medicago truncatula Apyrase Gene is Induced by Rhizobia....Pages 265-265
Genome Structure of Diazotrophs....Pages 269-270
Organisational, Transcriptional and Functional Analyses of the Rhizobium Sp. NGR234 Genome....Pages 271-274
The Symbiosis Island of a Mesorhizobium Strain that Nodulates Lotus ....Pages 275-276
DNA Reiteration in Rhizobial Genomes: How Unusual is it?....Pages 277-278
The Symbiotic Plasmid of Rhizobium etli : Sequence, Analysis and Comparison....Pages 279-280
Analysis of the Symbiotic Gene Region of Bradyrhizobium japonicum ....Pages 281-282
Multiple Replicon in Azospirillum Sp....Pages 283-284
The Melilo Eu Project: Sequence of the 3.7 Mb Chromosome of Sinorhizobium meliloti ....Pages 285-286
Genotypic Characterization by PCR DNA Fingerprinting and Partial 16S-23S rDNA Intergenic Spacer Sequencing of Azorhizobiun waulinodans ORS571....Pages 287-287
Plasmid-Associated Traits are Species-Specific....Pages 288-288
Sequencing the 1700 kb pExo Megaplasmid of Sinorhizobium meliloti. In vivo Cloning of 60-240 Kb Fragments....Pages 289-289
Curing of the Megaplasmid in Rhizobium tropici Strain Ciat899....Pages 290-290
Interspecies Transfer of Nodulation Genes from Bradyrhizobium japonicum Hrs Strains to B. elkanii ....Pages 291-291
Natural Generation of New Symbiotic Plasmids....Pages 292-292
Biodiversity in Rhizobia from Native Legume Trees from Uruguay....Pages 293-293
Analysis of the Rhizobium sp. Ngr234 Genome....Pages 294-294
Characterisation of a 40-Kb Region of the Symbiosis Island of Mesorhizobium loti R7A....Pages 295-295
Analysis of a 16-Kb Region of the Mesorhizobium sp Strain R7A Symbiosis Island Containing Vitamin Biosynthetic Loci and a Novel Fix Regulatory Gene....Pages 296-296
Genomic Arrangement of Nod Gene Sequences of Bradyrhizobium Isolates from TGx Soybean Genotypes in Relation to Bradyrhizobium USDA110....Pages 297-297
Development of a Physical Map and Sequence Tag Connector Framework for the Bradyrhizobium japonicum Genome....Pages 298-299
Towards the Understanding of the Structure and Function of SYM Genes....Pages 303-304
Functional Genomics and Genetic Analysis of Nodulation of Soybean and Lotus japonicus ....Pages 305-307
A Region on the Upper Arm of Chromosome 5 of Medicago truncatula is Highly Syntenic to the SYM2 Region of PEA....Pages 309-310
Plant Genes Controlling Development of Two Pea ( Pisum sativum L.) Endosymbiotic Systems....Pages 311-312
Modulation of Ammonium Assimilation in Transgenic Legumes During the Symbiosis with Rhizobium....Pages 313-314
An Effort Towards the Map Based Cloning of a Gene Conditioning Nonnodulation Trait in Tetraploid Medicago sativa ....Pages 315-316
Genetic Linkage Mapping and Location of Genomic Regions Associated with Nodulation and Bacterial Diseases in Phaseolus vulgaris L.....Pages 317-318
Two Subclasses of Yellow Lupin Pr10 Proteins and Their Possible Function During the Symbiosis Development....Pages 319-322
Early Nodulins as Markers of Various Developmental Stages During Nodulation of Medicago truncatula by Sinorhizobium meliloti ....Pages 323-324
Early Symbiotic Functions of Sesbania rostrata ....Pages 325-326
Characterization and Analysis of Symbiotic Genes in Alfalfa and White Sweetclover....Pages 327-328
 Nin , a Developmental Regulator of Root Nodule Initiation in Lotus japonicus ....Pages 329-329
Exploring the Genetic Potential of Rice for Forming Symbiotic Associations with Rhizobia....Pages 331-332
Biological Nitrogen Fixation Can Sustain Yield in Phaseolus vulgaris L.....Pages 333-333
Molybdenum as Component for N 2 -Fixation and Yield Enhancement in Bean Varieties....Pages 334-334
Use of Autofluorescent Reporters in Studying Interaction Between Rhizobia and Legumes....Pages 335-335
Fine Mapping of the Non-Nodulation Trait in Alfalfa....Pages 336-336
Nodule-Structure in the Roots of Gleditsia Spp. a Non-Nodulating Legume Genus....Pages 337-337
Autoregulation of Nodulation in Vicia sativa Ssp. NIGRA ....Pages 338-338
Identification of Sequences Related to Heat-Stress Genes in Cowpea Growing Under Biological Nitrogen Fixationscreened by cDNA-AFLP....Pages 339-339
Nitrogen Fixation Characteristics of Brazilian Soybean Cultivars....Pages 340-340
Cloning of Gsi-Like Genes of Medicago truncatula : Support for the Paralogous Evolution of GSI and GSII Genes....Pages 341-341
Cation Transport in Soybean Root Nodules....Pages 342-342
The Broad Bean Nodulin Vfenod18: Expression Analysis and Immunological Localization in Vicia faba L. Nodules....Pages 343-343
Regulation of Ureide Synthesis in Cowpea Nodules....Pages 344-344
Rhizobitoxine Production of Bradyrhizobium elkanii Enhances Siratro Nodule Formation....Pages 345-345
A New Class of Plant Dynamin Homolog is Strongly Expressed in Nodules of Ragalus sinicus Cv. Japan....Pages 346-346
Symbiosome Metabolism in Legume Nodules....Pages 349-350
Assimilation of Fixed Nitrogen Studied by Membrane Vesicle Transport and In Vivo 15 N-Nmr Spectroscopy in Pea....Pages 351-354
Alanine Excretion from Bradyrhizobium japonicum Bacteroids....Pages 355-358
Carbon Metabolism and Symbiotic Needs of Root Nodule Bacteria....Pages 359-364
Molecular Biology of the Peribacteroid Membrane....Pages 365-366
Oxygen Regulation and Adenylates in Legume Nodules....Pages 367-368
The CBB 3- and the Putative Bd-Type Terminal Oxidases of Bradyrhizobium Japonicum ....Pages 369-370
Ammonium and Alanine are the Primary Nitrogen Secretion Products of Pea Bacteroids....Pages 371-372
Regulation of Ammonium Assimilation During Symbiosome Differentiation in Root Nodules of Rhizobium etli ....Pages 373-374
The Role of Rhizobitoxine in Nodulation by Bradyrhizobium elkanii ....Pages 375-376
Polyhydroxybutyrate in Nitrogen-Fixing Symbioses....Pages 377-378
Characterization of an Acyl Coenzyme a Carboxylase from Rhizobium etli ....Pages 379-379
Rhizobitoxine Production of Bradyrhizobium elkanii Enhances Siratro Nodule Formation....Pages 380-380
The Adenylate Cyclase Genes of Rhizobium etli ....Pages 381-381
Analysis of Rhizobial Trehalose-6-Phosphate Synthase and its Role in Root Nodule Development....Pages 382-382
Characterization of Rhizobium etli Rela/SpoT Homologous Gene Mutant....Pages 383-383
Methionine Implication In Rhizobial Iron Acquisition from Hemoglobin....Pages 384-384
Occurence of Isatin Hydrolase and Purification and Characterization of the Enzyme from Species of Rhizobia....Pages 385-385
Symbiotic and Metabolic Properties of an α-Ketoglutarate Dehydrogenase Mutant of Bradyrhizobium japonicum ....Pages 386-386
Genetic Characterization of an Inducible Asparaginase in Rhizobium etli ....Pages 387-387
Indole-3-Acetic Acid Production from Indole-3-Acetonitrile by Strains of Bradyrhizobium ....Pages 388-388
Poly-β-Hydroxybutyrate and Glycogen Metabolism in Rhizobium leguminosarum ....Pages 389-389
Synthesis and Catabolism of Alanine in Rhizobium leguminosarum ....Pages 390-390
Ammonia and Alanine Efflux from Nitrogen-Fixing Soybean Bacteroids....Pages 391-391
Recent Progress in Characterization of Associative and Endophytic Diazotrophs and Their Influence on Host Plant Growth....Pages 395-396
Biological Nitrogen Fixation (BNF) in Non-Leguminous Plants: the Role of Endophytic Diazotrophs....Pages 397-400
Analysis of Genes for Nitrogen Fixation and Studies of Plant Growth Enhancement in the Diazotropfflc Endophyte of Sugarcane, Acetobacter Diazotrophicus ....Pages 401-404
Interactions of Diazotrophic Azoarcus spp. With Rice....Pages 405-408
Associative and Endophytic Symbiosis....Pages 409-410
Molecular Approaches for the Investigation of the Diversity and Localization of Diazotrophic Bacteria....Pages 411-412
Endophytic Establishment of Diazotrophic Bacteria in Sugar Cane Plants....Pages 413-414
Involvement of Extracellular Components in the Aggregation of Azospirillum brasilense ....Pages 415-416
The Cytochrome cbb 3 (Cytochrome C ) Terminal Oxidase of A. brasilense Sp7....Pages 417-418
Diversity of Endophytic Diazotrophs and Mechanism of Endophytic Colonization in Deepwater Rice....Pages 419-420
Characterization of Indole-3-Acetic Acid (IAA) Produced by the Sugarcane Endophyte Acetobacter diazotrophicus , in Sugarcane Growth....Pages 421-421
Diversity of Putative Endophytic Bacteria Isolated from Wild and Traditionaly-Cultivated Rice....Pages 422-422
Molecular Characterization of Plant Associated Nitrogen-Fixing Bacteria....Pages 423-423
Simultaneous Visualization of Rhizobia Expressing CFP or YFP in Plant Roots....Pages 424-424
Biological Nitrogen Fixation (BNF) in Micropropagated Sugarcane Plants Inoculated with Different Endophytic Diazotrophic Bacteria....Pages 425-425
Characterization of a Sugarcane Gene that is Induced by Association with Endophytic Diazotrophic Bacteria....Pages 426-426
Introduction of the Atmospheric Nitrogen Fixing Ability to Plants: Direct Bacterium Bombardment....Pages 427-427
Effect of Inoculation of Wheat Seeds with Azospirillum brasilense (245) and Azospirillum lipoferum in Field Trials....Pages 428-428
Physiological Aspects in the Metabolism of Carbon and Nitrogen of Sugar cane ( Saccharum spp.) Colonized with Endophytic Diazotrophic Bacteria....Pages 429-429
Presence of 16S rRNA Genes in Multiple Replicons in Azospirillum brasilense ....Pages 430-430
Effects of the Inoculation of Endophytic Diazotrophic Bacteria on Grain Yield of two Rice Varieties (Guarani and CNA 8305) Grown Under Field Conditions....Pages 431-431
N 2 -Fixing Bacteria Associated with Brachiaria Pastures....Pages 432-432
Diazotrophic Bacteria Occurring in Three Genotypes of Oil Palm ( Elaeis guineensis Jaquim.)....Pages 433-433
Interactions Between Azoarcus Sp., Glomus intraradices and Sorghum bicolor ....Pages 434-434
Does the Diazotroph Azorhizobium caulinodans Impart a Growth Benefit to Wheat ( Triticum aestivum L.)?....Pages 435-435
Physiological Evidence for Novel Tryptophan-Dependent Pathway for Indole Acetic Acid Synthesis in Azospirillum brasilense ....Pages 436-436
Regulation of Ammonium Transport in Tomato Roots Colonized by Azospirillum brasilense ....Pages 437-437
Energy Generation Via Extracellular Aldose Oxidation in Cultures of Acetobacter Diazotrophicus Fixing N 2 ....Pages 438-438
 In Situ Localization of Herbaspirillum frisingense Cand. In the Energy Plant Miscanthus ....Pages 439-439
Intercropping of Coinoculated Soybean and Sugar Cane Productivity....Pages 440-440
 Herbaspirillum frisingense Sp. Nov., a New Bacterial Species Occurring in C4-Energy Plants....Pages 441-441
The Respiratory System and the Diazotrophic Activity of Acetobacter diazotrophicus ....Pages 442-442
Development and Application of New Oligonucleotide Probes for the In situ Identification and Localisation of Nitrogen Fixing Bacteria....Pages 443-443
Characterization of New Herbasprillum Like Isolates from Pennisetum Purpureum and Sugar Cane Samples Captured by Immunofishing....Pages 444-444
Promotion of the Growth of Rice by Inoculation of Nitrogen-Fixing-Activity-Enhanced Bacteria to the Rhizosphere....Pages 445-445
Microscopical Study of the Symbiosis Between Tagasaste and Bradyrhizobium sp. ( Chamaecytisus ): A new Infection by Crack Producing Indeterminate Nodules....Pages 446-446
A Survey of the Diazotrophic Population in Association with Maize....Pages 447-447
 Frankia and Actinorhizal Plants....Pages 451-452
Sugar Partitioning in Nitrogen-Fixing Root Nodules....Pages 453-454
Flavan-Containing Cells Delimit Frankia Infected Compartments in Casuarina glauca Nodules....Pages 455-456
 Casuarina-Frankia Symbioses - Molecular Studies of Frankia ....Pages 457-458
Distribution and Phylogeny of Gymnostoma spp. Infective Frankia Strains in New Caledonia....Pages 459-460
Specificity in Discaria - Frankia Symbioses....Pages 461-462
Novel Nodule-Specific Glycine- and Histidine-Rich Proteins Expressed in the Zone of Infection of Actinorhizal Nodules may be Multimeric Metal-Binding Proteins....Pages 463-464
Root Nodule Initiation, Growth and Function in Discaria trinervis (Rhamnaceae) as Affected by External N and P Concentrations....Pages 465-465
Transgenic Casuarinaceae as a Tool for the Study of Actinorhizal Symbiosis....Pages 466-466
Effects Of Boron Deficiency on Growth, Structure and Functionality of a Frankia Strain....Pages 467-467
Cell Wall-Associated Proteins of Frankia ....Pages 468-468
Seasonal Change of the Actinorhizal Nodules and the Movement of N in Discaria trinervis ....Pages 469-469
Physiological Roles of Betaines in Sinorhizobium meliloti and other Members of the Rhizobiaceae Subjected to Salt Stress....Pages 473-474
Genetic Circuits Involved in the Response of Root Nodule Bacteria to Low pH....Pages 475-476
Persistence and Competitiveness of Or191-Like Rhizobia and Sinorhizobium meliloti (Sme) Strains in an Acidic Soil of Argentina....Pages 477-478
A Requirement for the Iron-Regulated Outer Membrane Protein Fega in the Bradyrhizobium japonicum/Soybean Symbiosis....Pages 479-480
2D SDS Page of Proteins Involved in Acid Tolerance in Rhizobium tropici CIAT 899....Pages 481-482
A Mutation in the gua B Gene of R. tropici Affects Thermal Tolerance and Bean Nodulation....Pages 483-484
A new Putative Signalling Circuit Involved in the Regulation of Cellulose Synthesis in Rhizobium and Agrobacterium ....Pages 485-485
Does Phosphorus Deficiency Affect the Specific Expression of Carbonic Anhydrase Gene in the Phaseolus vulgaris Nodule Parenchyma?....Pages 486-486
The exoH Gene and Acid Tolerance in Sinorhizobium meliloti ....Pages 487-487
ActR is a Global Genetic Regulator in Sinorhizobium meliloti ....Pages 488-488
A Gene Region Conferring Stress Tolerance to Rhizobium leguminosarum bv viciae and Sinorhizobium meliloti ....Pages 489-489
The Expression of Uricase Genes (NOD-35) in Ureide- and Amide-Type Legume Plants and their Molecular Evolution....Pages 490-490
Isolation of Acid Tolerant Peanut ( Arachis hypogaea L.) Rhizobia from Soils of Central Argentina....Pages 491-491
Osmotic Stress Effects on Peanut Microsymbionts....Pages 492-492
A Modified Colonization Pattern of Cereals by Azospirillum brasilense Cd Under Saline Stress....Pages 493-493
Balancing the C/N Ratio of Terrestrial Ecosystems in a CO 2 -Rich World: Example of an Ecosystem Control of Symbiotic N 2 Fixation....Pages 494-494
Effects of Legumes Cultivation on Symbiotic Potential and Competitiveness of Bradyrhizobium Japonicum....Pages 495-495
Effects of Environmental Stresses on the Expression of Nodulation Genes of Bean Rhizobia Strains Isolated from Soils of Argentina, Brazil and Spain....Pages 496-496
Inoculation of Cowpea Plants Grown Under Irrigated Conditions with Rhizobia Strains Isolated from Soils of the Semi-Arid Region of Brazil....Pages 497-497
Second Year Rhizobia Inoculation of Cowpea on a Non-Irrigated Field at the Semi-Arid Brazilian Region....Pages 498-498
Aluminium Toxicity on Peanut Symbiont in the Acidic Environment....Pages 499-499
Characterization of Salinity-Tolerant Bradyrhizobium sp Strains....Pages 500-500
Second Year Rhizobia Inoculation of Cowpea on an Irrigated Field at the Semi-Arid Brazilian Region....Pages 501-501
Xylem Sap Amino Acid Composition of Soybean After Transfer to Water-Culture....Pages 502-502
Acid-Tolerant and Fast-Growing Symbiotic Bacteria Isolated from Soybean Nodule in Tropical Asia....Pages 503-503
Influence of Iron Starvation in Nodulation Competitiveness of Rhizobia....Pages 504-504
Regulation of Catalases During Free-Living Growth of Sinorhizobium meliloti and their Protective Role During Symbiosis....Pages 505-505
Biological Nitrogen Fixation: Phosphorus - A Critical Future Need?....Pages 509-514
The Brazilian Experience with the Soybean ( Glycine max ) and Common Bean ( Phaseolus vulgaris ) Symbioses....Pages 515-518
Quantification of Biological Nitrogen Fixation in Agricultural Systems....Pages 519-524
Putting Legume N 2 -Fixation to Work in Cropping Systems of Southern Africa....Pages 525-530
Measuring Nitrogen Fixation by Trees....Pages 531-532
Benefit of Legume-Fixed N in Crop Rotations Under Zero-Tillage....Pages 533-534
Self Regulation of Biological N 2 Fixation of Tree Legumes in a Forest Succession of the Eastern Amazon....Pages 535-536
Multipurpose Legumes of the Tropical Genus Crotalaria are Associated with Unusual Rhizobia....Pages 537-538
Nitrogen Fixation by Forage Legumes as a Driving Force Behind the Recuperation and Improvement of Soil Quality in Tropical Agricultural Systems: Opportunities for Wider use of Forage Legumes?....Pages 539-540
Soil Fertility Improvement and Economic Returns from Incorporating Legumes in Cropping Systems in the Semi-Arid Tropics....Pages 541-541
Diversity of Indigenous Field Isolates of Cowpea Bradyrhizobia from Ecological Zones of Ghana....Pages 542-542
The Influence of Soil Rhizobium Populations on the Nodulation of Alternative Clovers in Southern Australia....Pages 543-543
Studies on Nitrogen Fixation in Amazonian Floodplain Forests....Pages 544-544
Biological Nitrogen Fixation by Crotalaria juncea and Mucuna niveum Determined Using the 15 N Natural Abundance Technique....Pages 545-545
Diversity and Abundance of Populations of Bean-Nodulating Rhizobia as a Function of Liming and Cropping History in Acidic Brazilian Soils....Pages 546-546
Legume Inoculation and Overcoming Constraints to Inoculant Use: Activities of the Rhizobium Ecology Network of East and Southern Africa....Pages 547-547
The Effects of Chlorsulfuron on the Ability of Rhizobium to Infect Chickpea ( Cicer arietinum ) Roots....Pages 548-548
Brazilian Trials to Evaluate the Effects of Soybean Reinoculation....Pages 549-549
Nitrogen Fixation and N Balance in Subterranean Clover Pasture Associated with Annual and Perennial Grasses....Pages 550-550
Effects of Soil Tillage Management and Crop Rotation on Bradyrhizobia Population....Pages 551-551
Interactions Among Rhizobia and Biocontrol Agents in Forage Legumes....Pages 552-552
Effects Of Environmental Factors on the Growth and Nitrogen Fixation of Cassia mimosoides var. nomame ....Pages 553-553
Peanut Inoculation in a Low Fertility Soil....Pages 554-554
Distribution of a Population of Rhizobium leguminosarum bv trifolii Among Different Size Classes of Soil Aggregates....Pages 555-555
Impact of Soyabean BNF on the Rural Poor: Experiences from Zimbabwe....Pages 556-556
Contributions of Below-Ground Legume N to the N Budgets of Crop Rotations....Pages 557-557
Stem Nodules Morphology of Discolobium leptophyllum ....Pages 558-558
Symbiotic N 2 Fixation by Faba Bean ( Vicia faba L.) in a Gyspum-Treated Sodic Soil....Pages 559-559
Persistence Behaviour of Genetically Modified Rhizobia in Italian Soils....Pages 560-560
Application of the “ 15 N Natural Abundance Method” to Estimate Biological Nitrogen Fixation by Leguminous Trees in Forest Stands of the Eastern Amazon....Pages 561-561
 15 N Determination of the Contribution of BNF to the Forage Legume Arachis pintoi ....Pages 562-562
 Pueraria phaseoloides as a Cover Crop in Agroforestry Systems in the Humid Tropics: Growth, Nutrition and Biological N 2 Fixation....Pages 563-563
Activities of the European Commission in the Field of Scientific & Technological Co-Operation with Developing Countries on BNF....Pages 564-565
The Importance of Biological Nitrogen Fixation on Land Rehabilitation....Pages 569-570
Soil Biotests and Phytoremediation with the Legume- Rhizobium Symbiosis....Pages 571-573
Can Aquatic Plants Remove Heavy Metals from Industrial Wastes and Sludges Effectively?....Pages 575-576
Bioremediation of Metal-Contaminated Soils....Pages 577-578
Host-Plant Factors in the Adaptation of Indigenous African Legumes to Low pH Soils....Pages 579-580
A New Remediation System for Heavy Metals Using Leguminous Plant and Rhizobia Symbiosis....Pages 581-581
UV-B Effects on Plant Growth, Symbiotic Performance and Metabolite Concentration in Tropical Legumes....Pages 582-582
Ultrastructure of Coimmobilization of the Microalga Chlorella vulgaris with the Plant Growth-Promoting Bacterium Azospirillum brasilense and with its Natural Associative Bacterium Phyllobacterium myrsinacearum in Alginate Beads....Pages 583-583
Micronutrient Requirement for the Growth Survival and Symbiotic Association of Some Rhizobial Strains....Pages 584-584
Legume Inoculation in Cerrado Soils....Pages 587-588
Impact of New Technologies on Inoculation by Diazotrophs....Pages 589-590
Antibiosis as a Means to Enhance Nodulation Competitiveness: Beyond the Model System....Pages 591-592
Horizontal Gene Transfer in Rhizobia: Ecological Implications....Pages 593-594
Plant-Biotin a Possible Signature Compound for Sinorhizobium meliloti During Alfalfa Root Colonization....Pages 595-596
Importance of Molybdenum and Cobalt to the Biological Nitrogen Fixation....Pages 597-598
The Diazotrophic Culture Collection of Embrapa Agrobiologia....Pages 599-599
Greenhouse Evaluation of Plant Growth Promoting Rhizobacteria (PGPR)....Pages 600-600
Characterization of Salinity-Tolerants Bradyrhizobium sp Strains....Pages 601-601
Leguminous- (Brady) Rhizobium Interaction in Presence of Thiram Fungicide....Pages 602-602
Characterization of Antifungal Agents Produced by Pseudomonas aurantiaca for Its Use as Biocontrol Inoculant....Pages 603-603
Chickpea Response to Inoculation and Nitrogen Fertilisation: Winter and Spring Varieties....Pages 604-604
Occurrence and Dissemination of Endophytic Diazotrophic Bacteria in Sugarcane Fields....Pages 605-605
Genomic Fingerprinting of Bradyrhizobium japonicum Isolates by Rapd and REP-PCR....Pages 606-606
Nodulation Capability of Species of Stylosanthes and Aeschynomene by Rhizobia from the Brazilian Semi-Arid Region....Pages 607-607
Nature of the Beneficial Rhizobium leguminosarum Bv. Trifolii — Rice Association....Pages 608-608
Infectivity and Competitiveness for Nodulation of N-Limited Bradyrhizobium japonicum ....Pages 609-609
Genotypic Diversity of Rhizobia Nodulating Common Beans ( Phaseolus vulgaris L.) in Brazilian Tropical Soils....Pages 610-610
PCR/RFLP Analysis of Acetobacter diazotrophicus Strains Isolated from Sugarcane Genotypes Originating from Different Countries....Pages 611-611
Compatibility Between Rhizobium Strains and Recommended Fungicides for Common Bean ( Phaseolus vulgaris L.)....Pages 612-612
Response of Field Grown Bean ( Phaseolus vulgaris L.) to Rhizobium Inoculation and N Fertilization in Two Cerrados Soils....Pages 613-613
Genetic Diversity of Fast Growing Rhizobia Isolated from Different Geographical Areas....Pages 614-614
Nitrogen Fixation, Competitiveness and Survival on Liquid and Peat Based Inoculant of Fast Growing Strains Sinorhizobium fredii ....Pages 615-615
Stabilization and Survival of Rhizobium meliloti Suspensions in Relation to the Exopolysaccharide and Biomass Content....Pages 616-616
Selection of an Efficient and Competitive Rhizobia Inoculant for Cowpea ( Vigna unguiculata L. Walp) Cultivated in the Brazilian Semi-Arid Region....Pages 617-617
Rhizobia Strains from Brazilian Semi-Arid Region Isolated from Root Nodules of Arachis hipogeae, Aeschynomene and Stylosanthes ....Pages 618-618
Effects of Concentrations and Sources of Molybdenum on the Survival of Bradyrhizobium Strains....Pages 619-619
Diversity of NOD, NIF, DCT , and MOC Genes and Their Relation with an Effective Symbiosis....Pages 620-620
 Acetobacter diazotrophicus Extracellular Proteins....Pages 621-621
Microbiological Resources Center - Mircen Porto Alegre....Pages 622-622
Selection of Efficient and Competitive Strains of Bradyrhizobium for the Soybean Crop in Brazil....Pages 623-623
Selection of Rhizobium Strains for the Common Bean Crop....Pages 624-624
Symbiotic Performance of Soybean Sinorhlzobia Strains Isolated in Brazil....Pages 625-625
Inoculation Efficiency in Inga edulis with Different Bradyrhizobium Strains on Oxisol from Amazonia....Pages 626-626
Nodulation Competitiveness of Bradyrhizobium Strains Harbouring an Additional Heterologous nifA Gene....Pages 627-627
A Rhizobium etli CFN42 Multiresistance Extrusion Pump Induced by Bean-Root Exudate....Pages 628-628
Diversity Of Rhizobia Isolated from Pterocarpus erinaceus (Poir.) and Pterocarpus lucens (Lepr.) and Nitrogen Fixing Potential of Symbiosis....Pages 629-629
Competition between Rhizobium and Bradyrhizobium Strains NGR 234 and CP 283 for Nodulation in Siratro Investigated with Gus Reporter Gene....Pages 630-630
New Records of Tropical Legumes Nodulation....Pages 631-631
Selection Program for Root Nodule Bacteria in Mediterranean Agriculture in Australia....Pages 632-632
Prospects for Engineering Nitrogen-Fixing Photosynthetic Eukaryotes....Pages 635-639
Nitrogen Fixation in Rice: Objectives and Achievements....Pages 641-646
Genetic Transformation of Legumes....Pages 647-652
Can the Study of Endomycorrhizae open new Avenues of Research in Symbiotic Nitrogen Fixation?....Pages 653-658