Biological Nitrogen Fixation for the 21st Century: Proceedings of the 11th International Congress on Nitrogen Fixation, Institut Pasteur, Paris, France, July 20–25, 1997

Front Matter....Pages i-xx
Front Matter....Pages 1-1
Lipo-Chitooligosaccharides (LCO’s) as Growth Hormones....Pages 3-5
Front Matter....Pages 7-7
Progress in Nitrogenase-Related Research....Pages 9-10
Complex Structures of Nitrogenase....Pages 11-16
Chemical Models for the Function of Nitrogenase....Pages 17-22
Mapping the Catalytic Surface of A. vinelandii MoFe Protein by Site Specific Mutagenesis....Pages 23-26
Activation of Iron and Sulfur for Nitrogenase Metallocluster Formation....Pages 27-31
Biosynthesis of the Iron-Molybdenum and Iron-Vanadium Cofactors....Pages 33-38
Nucleotide Hydrolysis and Electron Transfer Reactions in Nitrogenase Catalysis....Pages 39-42
Structure of Klebsiella pneumoniae Nitrogenase....Pages 43-46
 A. vinelandii Fe Protein: MgATP Induced Conformational Change and Reduction to an all Ferrous State....Pages 47-48
New Possibilities for Studying Mechanism of Nitrogenase Reaction with Photodonors of Electron....Pages 49-50
Requirement of NifX and Other Nif Proteins for in vitro Biosynthesis of the Iron-Molybdenum Cofactor of Nitrogenase....Pages 51-52
Stopped-Flow Infra-Red Spectroscopy of Functioning Nitrogenase....Pages 53-54
CO Binding to and Metal-Ion Valencies of the Femo-Cofactor in CO-Inhibited Nitrogenase....Pages 55-56
The Fe-Only Nitrogenase from Rhodobacter Capsulatus : 1. Catalytic and EPR-Spectroscopic Properties of the FeFe Protein....Pages 57-58
The Fe-Only Nitrogenase From Rhodobacter capsulatus : 2. The FeFe Protein Metal Centers Probed by EXAFS and Mössbauer Spectroscopy....Pages 59-60
The Nitrogen Cycle Sustained by Prokaryotes: Reversing Dinitrogen Fixation....Pages 61-66
Crystallographic Structures of Nitrite Reductase and its Substrate Bound Complex....Pages 67-68
Catalytic Reduction of Acetylene with Participation of Isolated FeMo-co from Azotobacter vinelandii in Non-Enzymatic Conditions....Pages 69-69
Polynuclear Iron and Molybdenum Complexes as Catalysts of Reduction of Nitrogenase Substrates....Pages 70-70
Front Matter....Pages 7-7
Electron Transfer Reactions within the Heterologous Clostridium pasteurianum Fe Protein - Azotobacter vinelandii MoFe Protein Nitrogenase Complex....Pages 71-71
Electron Transfer Reactions in Nitrogenase and the Role of MgATP Hydrolysis....Pages 72-72
Effect of Amino Acid Substitution at α192 SER and α277 ARG in the Azotobacter vinelandii Nitrogenase MoFe Protein....Pages 73-73
The P-Clusters of Azotobacter vinelandii Molybdenum Nitrogenase....Pages 74-74
Molecular Conformations of Nitrogenase Enzymes and Their Complexes in Solution....Pages 75-75
Inhibition of Iron-Molybdenum Cofactor Synthesis by L127Δ, an Altered form of Dinitrogenase Reductase....Pages 76-76
FDL Specifically Controls SoxS-Like Activation of NADPH: Ferredoxin Reductase in A. vinelandii ....Pages 77-77
Molecular Recognition in Nitrogenase Catalysis and Two Proton-Relay Pathways from P-Cluster to M-Center....Pages 78-79
Front Matter....Pages 81-81
Regulation of Nitrogen Fixation and Assimilation....Pages 83-86
Regulation of nif Gene Expression in Free Living Diazotrophs: Recent Advances....Pages 87-92
Heterocyst Differentiation and Nitrogen Fixation in Cyanobacteria....Pages 93-96
ADP-Ribosylation as a Regulatory Mechanism for Nitrogen Fixation....Pages 97-100
Regulation of Nitrogen Fixation Gene Expression in Rhizobia: An Overview....Pages 101-106
A New Role for NtrC: Control of Klebsiella pneumoniae nifL Activity....Pages 107-110
Regulatory Roles of the Structural Homologues P II and P z Proteins in Azospirillum brasilense ....Pages 111-114
Regulation of nif Gene Transcription in Methanococcus maripaludis ....Pages 115-116
Regulation of Nitrogen Fixation: Progress and Prospects 1997....Pages 117-118
Down-Regulation of the Rhizobium Ntr Regulatory System: A Mechanism to Uncouple Nitrogen Fixation and Assimilation in Bacteroids....Pages 119-120
The Rhizobium meliloti P II Protein Affects Alfalfa Nodule Development and Mobilisation of Fixed Nitrogen....Pages 121-122
Molecular Analysis of the glnB, amtB, glnD and glnA Genes in Azotobacter Vinelandii ....Pages 123-124
Front Matter....Pages 81-81
Characterization of Genes Involved in Regulation of Nitrogen Fixation and Ammonium Sensing in Acetobacter diazotrophicus , an Endophyte of Sugarcane....Pages 125-126
The Azospirillum brasilense amtB Gene is Responsible for Nitrogen Regulated Ammonium Uptake....Pages 127-128
Regulation of Nitrogen Fixation in Herbaspirillum seropedicae ....Pages 129-130
Posttranslational Regulation of NifA Activity by Ammonium: The N-Terminal Domain of Rhodobacter capsulatus NifA is Involved in Ammonium Control....Pages 131-132
Enhancing Nitrogen Fixation Gene Expression by Modifying the DNA-Binding Function of Rhizobium meliloti NifA....Pages 133-134
A Two-Component Regulatory System Ensures nifA Expression in Bradyrhizobium japonicum ....Pages 135-136
The Control of Azorhizobium caulinodans NifA Expression by Oxygen, Ammonia and by the HF-I Like Protein nrfA....Pages 137-138
Signal Transduction Involving Eukaryotic-Type Protein Phosphorylation in Anabaena sp. PCC 7120....Pages 139-140
NtcA-Mediated Nitrogen Control in Cyanobacteria....Pages 141-142
Characterization of Symbiotic Anabaena Isolated from Azolla Leaf Cavities....Pages 143-144
Metabolic Regulation of Nitrogenase: Regulation and Localization of DRAG (Dinitrogenase Reductase Activating Glycohydrolase)....Pages 145-146
Studies on the Electron Transport to Nitrogenase in Rhodobacter capsulatus ....Pages 147-148
The N-Terminally Bound FAD Cofactor of NifL is Required to Mediate the Response to Environmental Changes in Klebsiella pneumoniae ....Pages 149-149
Mechanism of Ammonia Release from nifL Interposon Mutants of Azotobacter vinelandii ....Pages 150-150
Duplication of a Transcriptional Regulator as a Mechanism for Genetic Control: NifAI and NifAII from Rhodobacter capsulatus Differ in Their Susceptibility to Ammonium Control....Pages 151-151
PCR Random Mutagenesis of draTG from Rhodospirillum rubrum and the Characterization of Some Mutants That Have Altered the Regulation of DRAT and DRAG Activities....Pages 152-152
Intramolecular Signal Transduction in Adenylyl Transferase May Coordinate the Opposing Activities of Two Distinct Domains....Pages 153-153
Changes in Distribution of Fixed Nitrogen by Timing the Ammonium Assimilation and the Overproduction of Nitrogenase in Rhizobium etli ....Pages 154-154
Complex Regulation of σ 54 Synthesis and Activity in Rhizobium etli ....Pages 155-155
Characterization of R. etli Mutants in the Purine-Thiamin Metabolism Suggest That 5-Aminoimidazole-4-Carboxamide Ribonucleotide (AICAR) is a Negative Effector of Symbiotic Cytochrome Terminal Oxidase cbb3 Production....Pages 156-156
Front Matter....Pages 81-81
NifA Protein Controls the Expression of Hydrogenase Structural Genes in Rhizobium leguminosarum bv. viciae....Pages 157-157
Distinct Modes of Regulation in Two of the Three Chaperonin Operons of Rhizobium leguminosarum ....Pages 158-158
Enhanced Respiration and Symbiotic Nitrogen Fixation in a Rhizobium tropici Glycogen Synthase Mutant....Pages 159-159
Characterization of Azorhizobium caulinodans glnB and glnZ Genes....Pages 160-160
Transcriptional Regulation of H 2 Oxidation by HoxA in Bradyrhizobium japonicum ....Pages 161-161
Kinetics of NH 4 + and NO 3 − Absorption and H + Fluxes in Ryegrass and N 2 -Fixing White Clover....Pages 162-162
Sequential Analysis of the NifA Gene Promoter Region of Azospirillum brasilense ....Pages 163-163
Evidence for a cbb3 -Type Cytochrome C Terminal Oxidase in Azospirillum brasilense Sp7....Pages 164-164
 Acetobacter diazotrophicus : nifA -Like Gene and Characterization of a nif -Like Promoter....Pages 165-165
Identification and Characterisation of Genes Involved in the Ammonium Sensing Mechanism in Acetobacter diazotrophicus ....Pages 166-166
Purification and Characterization of the PII Protein from H. seropedicae ....Pages 167-167
Cloning of ntrBC Genes and Regulation of ntrC Expression of Alcaligenes faecalis ....Pages 168-168
A Second Region of DNA Involved in H 2 -Dependent Respiration in Azotobacter chroococcum ....Pages 169-169
Genetic Analysis and Regulatory Properties of a Second fnr/fixK -Like Gene and an Unusual fixL -Homologue in Rhizobium leguminosarum bv. viciae ....Pages 170-170
Expression of GlnB and Role of the P II Protein in Nitrogen Assimilation in Synechococcus sp. PCC 7942....Pages 171-171
Characterization of the DnaK-J1-J2 Gene Region from the N 2 Fixing Cyanobacterium Anabaena variabilis ATCC 29413....Pages 172-172
Mutants of Gloeothece Impaired in Aerobic N 2 Fixation....Pages 173-173
The Appearance of Filament Anastomosis in Nostoc and Anabaena Strains....Pages 174-174
Haemagglutination Activity by Extracts of Symbiotic Bacteria Present in the System Azolla-Anabaena ....Pages 175-175
Expression of Mosquitocidal Bacillus Thuringiensis SUBSP. Israelensis δ-Endotoxin Genes in Filamentous Cyanobacterium Anabaena 7120....Pages 176-176
Front Matter....Pages 81-81
Luciferase as a Reporter Enzyme for Studying Nitrogen Metabolism in Rhodospirillum rubrum ....Pages 177-177
Over-Expression of Ferredoxin I in Rhodospirillum rubrum using the NifH Promoter....Pages 178-178
Expression and Preliminary Characterization of two Iron-Sulfur Components of a Complex Involved in Electron Transport to Nitrogenase in Rhodobacter capsulatus ....Pages 179-179
Comparative and Functional Study on Rhodobacter capsulatus rnf Gene Products and Their Homologs....Pages 180-180
Front Matter....Pages 181-181
Signalling Processes in Root Nodule Organogenesis: Introductory Remarks....Pages 183-184
 Rhizobium Nod Factor Structure and the Phylogeny of Temperate Legumes....Pages 185-188
Nod Factor-Induced Cell Cycle Activation in Root Cortical Cells....Pages 189-192
Role of Exopolysaccharides in Nodule Invasion by Rhizobium meliloti ....Pages 193-198
Comparison of Nitrogen-Fixing Root Nodule Symbioses....Pages 199-201
Nitrogen-Fixing Endophytes: Recent Advances in the Association with Graminaceous Plants Grown in the Tropics....Pages 203-206
Interactions in the Rhizobium -Legume Symbiosis....Pages 207-208
Analysis of the Symbiotic Role of Proteins Secreted by Rhizobium leguminosarum Biovar Viciae ....Pages 209-210
Biosynthesis and Function of Extracellular Polysaccharides of Rhizobium leguminosarum ....Pages 211-212
Characterization of a High Affinity Binding Site for NodRm Factors in Medicago varia Cell Culture Extracts....Pages 213-214
 Rhizobium Nodulation Signals Induce Calcium Changes and Actin Cytoskeleton Rearrangements in Plant Root Hair Cells....Pages 215-216
Cytoskeletal Differentiation during Root Nodule Organogenesis, as followed by Visualization of Intermediate Filaments....Pages 217-218
Cell Differentiation, Cytoskeletal Changes and Nod Factor Internalization are Correlated Events in Alfalfa Nodules....Pages 219-220
Actin Genes and Actin-Binding Proteins are Differentially Expressed in Roots and Root Nodules in Phaseolus vulgaris ....Pages 221-222
Classical and Novel Growth Regulators Acting during Nodule Initiation....Pages 223-224
Symbiotic Suppression of the Medicago sativa Plant Defence System by Rhizobium meliloti Oligosaccharides....Pages 225-226
Front Matter....Pages 181-181
Characterization of an Azorhizobial Mutant with Altered Surface Polysaccharides and Affected in Nodule Invasion....Pages 227-228
A Lectin-Like Glycoprotein PsNLEC-1 is Absent from Symbiosomes in the Symbiotically Defective Pea Mutant sym31 ....Pages 229-230
Small GTP-Binding Proteins in Lotus japonicus ....Pages 231-232
Nodule Specific Modulation of Glutamine Synthetase (GS) Gene Expression in Transgenic Legumes....Pages 233-234
Regulation of the Plant Aspartate Aminotransferase P 2 Gene During Nodule Development....Pages 235-236
The Rhizobium meliloti leuA Gene is Required for Flavonoid-Dependent Expression of Nod Genes....Pages 237-237
 NodD2 in Multicopy Complements NodD1 Mutants of Rhizobium fredii for Nodulation of Soybean....Pages 238-238
Non nod Gene Expression in Rhizobia During Exposure to Aromatic Compounds....Pages 239-239
Flanovoids in Non-Nodulating Chickpea Lines....Pages 240-240
Study of the nodHPQ Operon in Rhizobium Tropici CIAT899....Pages 241-241
Characterization of the Nodulation Functions in Bradyrhizobium sp. WM9 ( Lupinus )....Pages 242-242
Bacteroid Forms of Agrobacterium Carrying Rhizobium pSym in Alfalfa Nodule....Pages 243-243
Autoinduction in Rhizobium etli ....Pages 244-244
Transfer of the Rhizobium tropici Nod Factor Sulphation Locus to Heterologous Rhizobia: Biochemical and Plant Phenotypic Analysis....Pages 245-245
The Rhizobium sp. BR816 NodD 3 Gene is Regulated by a Transcriptional Regulator of the AraC/XylS Family....Pages 246-246
Investigation of Unique Bacteriocin Encoding Loci from Rhizobium leguminosarum ....Pages 247-247
Are the Three Chaperonin Operons of Rhizobium leguminosarum Essential?....Pages 248-248
Characterization of a GroESL Homologue in Rhizobium sp. BR816: A Possible Role in the Host Range Extension of Various Rhizobium Strains to Leucaena leucocephala ....Pages 249-249
Structure—Function Relationship of Nod Factors Synthesized by Azorhizobium caulinodans ....Pages 250-250
The Role of Nod Factor Modifications for Nodulation on Afghan Peas....Pages 251-251
Front Matter....Pages 181-181
Structural Requirements for Uptake and Bioactivity of Rhizobium Chitolipooligosaccharides in Legume Roots as Revealed by Synthetic Analogs and Fluorescent Probes....Pages 252-252
Analysis of Early Events in Nod Factor Signalling in Root Hairs of Medicago ....Pages 253-253
Intracellular and Extracellular Calcium Changes in Plant Root Hair Cells Responding to Nodulation Signals....Pages 254-254
Lectin-Type Proteins of Medicago sativa Roots....Pages 255-255
Chitinase Gene Expression During Stem Nodulation on Sesbania rostrata ....Pages 256-256
Characterization of Chitinase Isoforms in Soybean Cultivars Differing in their Nodulation Potential....Pages 257-257
Cloning of a cDNA of the Dimer-Forming Nod Factor Hydrolase from Medicago : Root Specific Expression and Presence in Different Legumes....Pages 258-258
Genetic Organization of Nodulation Genes from Rhizobium sp. ( Oxytropis arctobia ) Strain N33 Isolated from the Canadian High Arctic....Pages 259-259
Structural Characterization and Biological Activity of the Lipochitooligosaccharidic Signals of Rhizobium huakuii ....Pages 260-260
What is the Role of ENOD40 in Nodulation?....Pages 261-261
Autoregulation of Nodulation in Vicia sativa ssp. nigra ....Pages 262-262
 Bradyrhizobium elkanii Rhizobitoxine Mutants form Developmentally Arrested Nodules on Mungbean....Pages 263-263
Intermittent Exposures to NO 3 − or NH4 + have Very Different Effects on Nodulation in Pisum sativum L.....Pages 264-264
Crack Entry Invasion of Sesbania rostrata by Azorhizobium caulinodans ORS571 is Nod Gene-Independent....Pages 265-265
Effect of the Co-Inoculation of Plant-Growth Promoting Rhizobacteria on the Ultrastructure of Common Bean Nodules....Pages 266-266
Characterization of High Nitrogen Fixing Central American Rhizobia Strains....Pages 267-267
Sequencing and Expression Analysis of the Sinorhizobium meliloti Locus eff-482 which was Identified by a Tn 5 Insertion Enhancing Symbiotic Effectiveness....Pages 268-268
Size Distribution of Succinoglycan (EPS I) Produced by Different Sinorhizobium meliloti ExoP Mutants and Analysis of their Symbiotic Properties....Pages 269-269
 syrM is Involved in the Determination of the Amount and the Ratio of the Two forms of Exopolysaccharide EPSI in Rhizobium meliloti ....Pages 270-270
Front Matter....Pages 271-271
Flavonoids as Modulations of Extracellular Proteins and Exopolysaccharides of Rhizobium fredii ....Pages 181-181
Identification of Genes Regulated by RosR , a Nodulation Competitiveness Determinant in Rhizobium etli ....Pages 272-272
Comparative Ultrastructural Analysis of Alfalfa Nodules Induced by Rhizobium meliloti Effective and Ineffective Strains....Pages 273-273
Trapping of a Host Range Determinant Using Immunomolecular Biology....Pages 274-274
Cyclic β-Glycans Produced by B. japonicum May Suppress the Host Defense During Symbiosis with Soybean....Pages 275-275
Symbiosis and Defense-Related Responses in Trifolium repens Roots Challenged by Homologous and Heterologous Rhizobia....Pages 276-276
 lpsB a Symbiotically Relevant Gene for R. meliloti is also Present and Functional in other Rhizobial Species....Pages 277-277
Functions of Peroxidase and Diamine Oxidase in Infection Thread Development during Pea Nodule Formation....Pages 278-278
Cytoskeleton and Intracellular Organisation of Infected Cells in Soybean Root Nodules....Pages 279-279
Symbiosome Development in Boron Deficient Legume Nodules....Pages 280-280
 Tn5-Lux Induced Mutants of Rhizobium meliloti 242 Defective on Iron Acquisition from Heme-Compounds....Pages 281-281
Glycoproteins in the Peribacteroid Space of Root Nodules of Pea ( Pisum Sativum )....Pages 282-282
Origin of Proteins in the Different Compartments of Pea- Rhizobium Symbiosomes....Pages 283-283
Pleiotrophic Alterations in the Cellular Protein Synthesis of Tn5-Induced Rhizobium Mutants as Revealed by Two-Dimensional Gel Electrophoresis....Pages 284-284
Symbiotic Expression of Hydrogenase and Nitrogenase Activities of Rhizobium leguminosarum bv. Viciae are Controlled by FnrN....Pages 285-285
Analysis of the Rhizobium meliloti Baca Protein: Implications for Host-Microbe Interactions....Pages 286-286
gusA Derivatives for the Genetic Analysis of the Root Nodule Bacteria....Pages 287-287
Construction of a gfp Promoter-Probe Vector and its Application in the Study of Rhizobium fredii ....Pages 288-288
Heat Activated Glutamine Synthetase (GS) Activity in Bradyrhizobium japonicum 110....Pages 289-289
Localisation and Regulation of Cytosolic Glutamine Synthetase in Nodules of Medicago truncatula ....Pages 290-290
Front Matter....Pages 291-291
The Peribacteroid Membrane Ammonium Channel....Pages 181-181
Identification of an NH 4 + Transporter in the Symbiosome Membrane of Pea....Pages 292-292
Involvement of Rhizobium Bacteria in Regulation of the Plant L-Asparaginase Gene during Legume Nodule Development....Pages 293-293
Structure and Expression of Yellow Lupine Genes Encoding the PR10 Proteins....Pages 294-294
Effect of Nitrate on Symbiotic Nitrogen Fixation in Acacia albida Del. (Syn. Faidherbia albida )....Pages 295-295
 In Situ Expression of the R. meliloti C 4 -Dicarboxylate Transport Gene ( Dct A) During Symbiosis....Pages 296-296
Identification of a Novel NH 4 + Transporter from Soybean Root Nodules....Pages 297-297
The Bradyrhizobium japonicum LRP Gene Controls Uptake of ALA, a Heme Precursor....Pages 298-298
Selection of Fodder Galega ( Galega orientalis Lam.) for Increasing the Efficiency of Symbiosis....Pages 299-299
Immunolocalization of Intercellular Antigens in Lupinus albus Root Nodules Using a Polyclonal Antibody Raised Against Raspberry Polygalacturonase-Inhibiting Protein....Pages 300-300
Gene Discovery in Legume Nodulation: From Soybean to Lotus japonicus ....Pages 301-301
 Har1 , an Incomplete Dominant Mutation in Lotus japonicus , Confers Aberrant Root Development and an Unusual H yper n odulation R esponse (HNR)....Pages 303-304
Identification of Broad Bean Genes Induced in Root Nodules and Mycorrhizal Roots....Pages 305-306
Molecular Genetics of a Model Plant: Lupinus luteus ....Pages 307-308
Transient Auxin Transport Inhibition and Localised Flavonoid Induction Occur During the Earliest Stages of Nodulation in White Clover....Pages 309-310
Construction of an Improved Genetic Map of Diploid Alfalfa ( Medicago Sativa ) Using a Novel Linkage Analysis for Chromosomal Regions Exhibiting Extreme Distorted Segregation....Pages 311-312
Genetic Analysis of Medicago sativa Nodulation Genes....Pages 313-313
Genetic Analysis of Symbiosis Mutants in Medicago truncatula ....Pages 315-316
Antisense Suppression of Lectin Genes Causes a Plethora of Developmental Abnormalities in Alfalfa....Pages 317-318
Genetic Dissection of Pea ( Pisum sativum L.) Root Nodule Morphogenesis....Pages 319-320
Front Matter....Pages 321-322
Gene Tagging in Lotus japonicus Using the Maize Transposable Element AC....Pages 181-181
T-DNA Tagging of Symbiotic Plant Genes in Lotus japonicus ....Pages 323-323
A Lotus filicaulis X Lotus japonicus F2 Population for Genetic and Physical Mapping....Pages 324-324
Detection of Leghemoglobin Gene on the Chromosome of Phaseolus vulgaris by in situ Hybridization in Combination with in situ PCR....Pages 325-325
The Utilization of RAPD to Obtain Markers Linked with Nitrogen Fixation in Common Bean ( Phaseolus vulgaris )....Pages 326-326
Different Methods for Plant Regeneration and Transformation of the Legume Galega orientalis ....Pages 327-327
Pea ( Pisum sativum L. ) Regeneration and Transformation Efficiency are Highly Dependent on Plant Genotype....Pages 328-328
Studies of Rhizobium - Legume Symbiosis by Micrografting: Example of Sesbania and Aeschynomene ....Pages 329-329
Reactivation of the Cell Division Cycle During Root Nodule Organogenesis....Pages 330-330
Effect of Plant Genotype on the Selection of Nodulating Rhizobium meliloti Strains....Pages 331-331
Physiological and Biochemical Characteristics of FN 1 , a “Fix Minus Mutant” of Pea ( Pisum sativum L )....Pages 332-332
 Sym 31, a Mutation Affecting Protein and Vesicle Targetting in Pea Nodule Symbiosomes....Pages 333-333
Early Nodulin Expression During Spontaneous Nodulating in Alfalfa....Pages 334-334
ENOD40 Gene in L. japonicus . Are the Two Different ENOD40 Genes Differentially Expressed?....Pages 335-335
Characterization of MtN6 , A New Medicago Truncatula Early Nodulin Gene....Pages 336-336
Early Gene Expression During Stem Nodule Formation on Sesbania Rostrata ....Pages 337-337
Nodule Specific Novel Genes Induced by Infection of Rhizobium Huakuii bv. Renge in Astragalus Sinicus (Chinese Milk Vetch)....Pages 338-338
Identification of a Nitrate Tolerant Supernodulating Mutant in Lotus japonicus ....Pages 339-339
Identification of Novel Putative Regulatory Genes Induced During Nodule Development in Medicago ....Pages 340-340
The Probable Role of a New Parenchyma Nodulin from the Symbiotic System Phaseolus-Rhizobium ....Pages 341-341
Front Matter....Pages 342-342
Isolation of Two Transcript Sequences of Different Sizes Encoding Modular Nodulins of Vicia hirsuta : Expression Properties and Analysis of Transgenic Nodules Containing Antisense Constructs....Pages 181-181
Progress on the Regulation and Function of Enod8, an Early Nodulin Gene from Medicago that May Encode a Lipolytic Enzyme....Pages 343-343
Study of Pea ( Pisum Sativum L.) Symbiotic Gene Interactions Using a Panel of Lines Carrying Two Fix − Mutations and a Comparative Study of Their Nodule Ultrastructure....Pages 344-344
Expression of Two Uricase Genes and the Promoter Analysis Using Transgenic Hairy Roots....Pages 345-345
Can We Use M. Truncatula R108-1 Line in Combination with Jemalong to Study the Plant-Microbe Interaction?....Pages 346-346
Genetic Regulation of Ammonium Transport in Tomato Roots....Pages 347-347
Assimilation of Symbiotically-Reduced Nitrogen in Tropical Legumes: Regulation of Induction of de novo Purine Biosynthesis and Peroxisome Proliferation Leading to Ureide Production....Pages 348-348
The ENBP1 Transcription Factor Interacts with an Important CIS -Element in the PsENOD12B Promoter....Pages 349-349
Characterization of a 5′-Nucleotidase cDNA from Root Nodules of Glycine max ....Pages 350-350
Convener comments. Actinorhizal symbiosis....Pages 351-351
Distribution of Frankia spp. in Soil and their Hopanoid Contents....Pages 353-354
Oxygen Relations in Frankia and in Actinorhizal Nodules....Pages 355-356
 Casuarina-Frankia Symbiosis: Molecular Studies of the Host Plant....Pages 357-358
Characterization of an Effective Frankia Isolate from Nodules of Discaria trinervis ....Pages 359-360
P Alters N Effects on Nodulation in Alnus incana and Trifolium pratense ....Pages 361-362
Root Nodule Initiation and Development in Discaria trinervis Frankia - Symbiosis....Pages 363-364
Immunogold Localization of Hydrogenase in Frankia Strains....Pages 365-365
Deoxyribonuclease DNase Activities of Frankia Strain R43....Pages 366-366
Does Carbon Availability Affect the Regulation of Nitrogen Fixation?....Pages 367-367
Genetic Characterization of a New Group of Nitrogen-Fixing Actinobacteria....Pages 368-368
Front Matter....Pages 369-369
PCR-RFLP, Freezing and Internet are Significant Resources for Maintaining Frankia Biodiversity in Culture Collections....Pages 181-181
 Frankia Inoculant Technology....Pages 370-370
Biodiversity of Rhizobium sp Strains Isolated from Acacia Species in South of Morocco....Pages 371-371
Root Associated Nitrogen-Fixing Bacteria in Retrospective and Perspective....Pages 372-372
 Azospirillum -Plant Root Associations: Genetics of IAA Biosynthesis and Plant Cell Wall Degradation....Pages 373-374
Regulation of Nitrogen Fixation and Expression of nif- Genes in Rice by Azoarcus sp. BH72....Pages 375-376
Use of Molecular Methods for Identification and in situ Studies of Diazotrophic Plant Colonizing Bacteria....Pages 377-378
Maize Colonization by Acetobacter diazotrophicus ....Pages 379-380
Studies on Acetobacter diazotrophicus : Analysis of Nif and Related Genes and Contributions to Sugarcane Nutrition....Pages 381-382
Evidence for a Physiological Role of IAA in Azospirillum brasilense Sp245....Pages 383-384
Flagellation in Variant and Wild Type Forms of Azospirillum lipoferum 4B, a Bacterium Isolated from Rice Rhizosphere....Pages 385-385
Cloning and Characterization of pelI, bglA and bglB Genes Encoding Pectate Lyase and β-Glucosidase Activities in Azospirillum irakense ....Pages 386-386
Induction of Lateral Flagella in Azospirillum brasilense Sp7 ....Pages 387-387
Identification of the Structural Gene of A Periplasmic Nitrate Reductase of Azospirillum brasilense Sp245....Pages 388-388
Osmoregulated Periplasmic Glucans of Azospirillum brasilense ....Pages 389-389
Influence of the Plasmid Content on the Lipopolysaccharide Antigens of Azospirillum brasilense Sp245 and Sp7....Pages 390-390
The Influence of Lectins from Azospirillum brasilense Sp7 and Azospirillum lipoferum 59b on the Activity of Plant β-Glucosidase....Pages 391-391
Chitooligosaccharide-Backboned Residues on Cell Surface of Azospirillum lipoferum Specifically Communicate with Lectin of Wheat....Pages 392-392
Protonmotive Force and Membrane Potential in Azospirillum brasilense Sp7-S....Pages 393-393
Colonisation of Wheat Roots by Azospirillum Brasilense Wild Type and by Mutant Strains Impaired in Flocculation and Motility....Pages 394-394
Front Matter....Pages 395-395
Associative Nitrogen-Fixing Bacteria: Colonization of the Roots and Efficacy on Non-Legumes Plants....Pages 181-181
Nitrogen Fixation under Cereals Inoculated with Azospirillum brasilense Strain and Fertilized with Different Doses of Mineral Nitrogen....Pages 396-396
 Azospirillum lipoferum CRT1/Maize Association: Promoting Effect Begins from the Very Early Plant Development Stage....Pages 397-397
Effect of Combined Inoculation of White Clover with Gus -Marked and Wild Strains of Rhizobium and Azospirillum on Nodulation and Root Colonization....Pages 398-398
The Role of Flavonoids in the Oryza -Diazotroph Interaction....Pages 399-399
Nitrogen Fertilization Has an Inhibitory Effect on Colonization of Sugarcane by Acetobacter diazotrophicus ....Pages 400-400
Analysis of Endophytic Diazotrophic Bacteria in the C 4 -Plant Miscanthus ....Pages 401-401
Expression of the Azoarcus sp. BH72 Nifhdk Operon: Evidence for Endophytic Nitrogen Fixation....Pages 402-402
Identification and Characterization of the Terminal Oxidases of Azoarcus sp. BH72....Pages 403-403
Identification and Molecular Analysis of Multiple glnB Homologues in Azoarcus sp. BH72....Pages 404-404
Colonization of Wheat by Azoarcus sp. and Interaction with Other Diazotrophs....Pages 405-405
Does Azoarcus sp. Fix Nitrogen with Monocots?....Pages 406-406
Diazotrophs and Their Activity in Maize and Wheat....Pages 407-407
Studies on the Responses of Rice Roots to Rhizobial Strains....Pages 408-408
Establishment of an Association Between N2- Fixing Endophitic Bacteria and Zea mays ....Pages 409-409
Localization of Burkholderia brasilensis sp. Nov. in the Rhizosphere of Rice Root System....Pages 410-410
The Potential of Extending of Symbiotic Nitrogen Fixation to Naturally Non-Nodulated Plants....Pages 411-411
Barley Yield Increase after Inoculation with Rhizosphere Nitrogen Fixing Consortium Klebsiella terrigena + Bacillus firmus ....Pages 412-412
Field Testing of Azotobacter Chroococcum Effectiveness in Sugar Beet....Pages 413-413
Mixed Inocula of N 2 -Fixing Bacteria on Summer Cereals: Utilisation of the gus Reporter System to Follow the Bacterial Plant Colonisation....Pages 414-414
Front Matter....Pages 415-415
Influence of Cereal Fungicide Seed Dressings on Soil Microflora....Pages 181-181
Effect of Azotobacterin and Trichodermin upon Sugar Beet....Pages 416-416
Potential Use of Acetobacter diazotrophicus Containing the cry3A Gene as a Control Agent of Coleopteran Insects....Pages 417-417
Characterization of Different Polyclonal Antisera to Quantify Herbaspirillum spp. in Elephant Grass (Pennisetum purpureum Schun.)....Pages 418-418
Diazotrophic Mixed Cultures of Azospirillum and Bacillus Species Using Pectin or Rice Plantlets as Substrates....Pages 419-419
The Use of nifH-lacZ Fusions in Detecting Oxygen Conditions Suitable for Nitrogen Fixation in Associations Between Azospirillum spp. and Wheat....Pages 420-420
Isolation and Characterization of Sugarcane Genes Involved in the Association with Endophytic Diazotrophs....Pages 421-421
A New Acid-Tolerant Nitrogen-Fixing Bacteria in Association with Barley- Hordeum sativum and Elymus arenarius ....Pages 422-422
Approach to Explore Possible Signal Transduction Components for Root Nodulation in Rice....Pages 423-423
Front Matter....Pages 424-424
Factors Controlling Nitrogen Fixation in Legume Nodules: Time for a Rethink?....Pages 425-425
Rhizobial Respiration to Support Symbiotic Nitrogen Fixation....Pages 427-428
Oxygen and the Control of Nodule Metabolism and N 2 Fixation....Pages 429-434
How Bacteria Find the Optimal Oxygen Concentration for Nitrogen Fixation....Pages 435-440
Nodule Carbon Metabolism: Organic Acids for N 2 Fixation....Pages 441-442
Ammonium Transport from the Bacteroid to the Plant....Pages 443-448
Regulation of N Assimilation in Legume Nodules....Pages 449-452
Regulation of Carbon Distribution and N 2 Fixation During the Symbiosis of Rhizobia with Legumes....Pages 453-456
Malate Metabolism and Poly-3-Hydroxybutyrate Accumulation in Bacteroids....Pages 457-457
Insertional Mutagenesis of an AAA-Like Gene in Bradyrhizobium japonicum Leads to Increased Levels of Malate Dehydrogenase and Increased Acetylene Reduction Activity by Soybean Nodules....Pages 459-460
Hybrid Structures of Malic Enzymes from Rhizobium meliloti ....Pages 461-462
Front Matter....Pages 463-464
Is Nitrogenase-Linked Respiration Regulated by Osmocontractile Cells in Legume Nodules?....Pages 425-425
Protein Induced by Rhizobium etli in Aerobic or Fermentative Metabolism....Pages 465-466
Role of the Pyruvate Dehydrogenase (PDH) and Pyruvate Formate Lyase (PFL) in Rhizobium elti Symbiosis....Pages 467-467
Transcriptional and Post-Translational Regulation of Pyruvate Carboxylase in Rhizobium etli ....Pages 468-468
Antisense-Inhibition of PEPC-Activity in Alfalfa Nodules Reduces Nitrogen Fixation and Plant Growth....Pages 469-469
Carbon Metabolism in Root Nodules. Spatial and Temporal Expression of Carbonic Anhydrase and PEPC Genes....Pages 470-470
Soybean Nodule-Enhanced Phosphoenolpyruvate Carboxylase Gene Shows Striking Similarity to Another Gene for House-Keeping Isoform....Pages 471-471
Down Regulation of Nodule Sucrose Synthase by Mutation and Antisense....Pages 472-472
Inhibition of Citrate Synthase from Chickpea Nodulating Bacteria....Pages 473-473
A 13 C-NMR Investigation of Polymer Synthesis in Rhizobium meliloti ....Pages 474-474
Why do Bacteroids use C 4 -Dicarboxylic Acids to Fuel Nitrogen Fixation?....Pages 475-475
Enzymes of Poly-3-Hydroxybutyrate Synthesis in Rhizobia....Pages 476-476
The PHBC Mutant of Azorhizobium caulinodans is Impaired for Growth and Lacks Nitrogenase Activity Both in the Free-Living State and During Symbiosis....Pages 477-477
Symbiotic Characteristics of a Thiamine Auxotroph Mutant of Rhizobium Fredii HH103....Pages 478-478
A Biotin-Regulated Locus, bioS , in a Survival Operon of Rhizobium meliloti ....Pages 479-479
The Arginine Deiminase Pathway in Rhizobium etli : Functional Study of the arcABC Genes....Pages 480-480
Molecular Characterization of a Gene Cluster Encoding Carbon Monoxide Dehidrogenase of Bradyrhizobium japonicum ....Pages 481-481
Bacteroid Activities in Flow Chamber Reactions with Low Concentration of Malate....Pages 482-482
Indole-3-Acetic Acid Catabolism by Bacteria Belonging to the Bradyrhizobium Genus....Pages 483-483
 myo -Inositol Utilisation by Rhizobium leguminosarum ....Pages 484-484
Front Matter....Pages 485-485
Xylanase Production by Transformed Azotobacter ....Pages 425-425
Sugar Transfer and Ammonia Production within the Gunnera / Nostoc Symbiosis....Pages 486-486
Investigations into the Regulation of Nitrogenase Activity in Detopped and Argon-Treated Lucerne Plants....Pages 487-487
Ureides Decrease N 2 -Fixation and Nodule Permeability to Oxygen in Soybean....Pages 488-488
Rhizobial Genes Essential for Acid Tolerance....Pages 489-489
Mechanism of Osmotic Stress Adaptation in Rhizobium meliloti ....Pages 491-492
Irr Mediates Cellular Responses to Iron Stress in Bradyrhizobium japonicum ....Pages 493-494
Characterization of Kat Genes Encoding Catalases in Sinorhizobium meliloti ....Pages 495-496
Environmental Control of Gene Expression in Rhizobium meliloti ....Pages 497-498
Different Oxygen Concentrations in Lupin Nodules Functioning: Genetic and Physiological Aspects....Pages 499-499
Cloning, Sequencing and Regulation of Catalase-Peroxidase of Rhizobium etli ....Pages 500-500
Photosynthetic Oxygen Evolution within Sesbania rostrata Stem Nodules....Pages 501-501
Radical Formation During Soybean Nodule Senescence....Pages 502-502
Mineral Phosphate Solubilization by Rhozibium meliloti ....Pages 503-503
The Potential for Soil Phosphorus Availability to Limit Symbiotic Nitrogen Fixation in Thinleaf Alder....Pages 504-504
The Effect of Heavy Metals on the Population Structure of R. leguminosarum bv. viciae in Sewage Sludge Contaminated Soils....Pages 505-505
The Physiological Role of Copper in the Effective Protection Against Lipid Peroxidation in Root Nodules of Lupinus luteus L....Pages 506-506
Iron-Regulated Outer Membrane Proteins of Rhizobium leguminosarum bv viciae WSM710....Pages 507-507
Residual Effects of Previous Exposure of Bradyrizobium japonicum Strains to Aluminium on Solid Defined Medium....Pages 508-508
Subcloning and Sequencing of DNA Fragment Related to Salt Tolerance in Sinorhizobium fredii ....Pages 509-509
Front Matter....Pages 510-510
Transfer of Salt-Tolerance Encoded Genes of Halophilic Bacteria to R. leguminosarum via Plasmid Transfer Technique....Pages 425-425
Salt Regulates Exopolysaccharide Production in Rhizobium meliloti EFB1....Pages 511-511
Effect of Salinity on the Nitrogen Fixation by the Rhizobium meliloti-medicago Association....Pages 512-512
Comparative Study of Rhizobium Isogenic Strains in Symbiosis with Phaseolus Vulgaris under Saline Stress....Pages 513-513
Effects of N Source (NO 3 - or N 2 ) and P Nutrition on the Limitation by NaCl of the Common Bean Growth ( Phaseolus vulgaris )....Pages 514-514
Exopolysaccharides, Low pH and Calcium Interactions for Sinorhizobium ....Pages 515-515
 S. Meliloti -Alfalfa Symbiosis in Acidic Conditions....Pages 516-516
Integrating Field and Physiological Studies to Understand Acid Tolerance in Rhizobium leguminosarum bv. trifolii ....Pages 517-517
 Bradyrhizobium Species Isolated from Indigenous Legumes of the Western Cape Exhibit High Tolerance of Low pH....Pages 518-518
Characterization of Root Nodule Bacteria Isolated from Paraserianthes falcataria ....Pages 519-519
Differences in Ureide and Amino Acid Composition of Water Stressed Soybean Inoculated with either Bradyrhizobium japonicum (CB1809) or B. elkanii (29W)....Pages 520-520
Drought Effects on Carbon and Nitrogen Metabolism of pea Nodules....Pages 521-521
Viability and Infectivity of Soybean Rhizobia Stored in Distilled Water....Pages 522-522
Alfalfa Seed Coating with Sinorhizobium meliloti and Desiccation Stress Tolerance....Pages 523-523
Effect of the Rainfalls, Rhizobium Inoculation and Nitrogen Fertilization on Nodulation of Common Bean ( Phaseolus vulgaris L.)....Pages 524-524
Proteolytic Activity in Plant-Determined Ineffective Nodules of pea....Pages 525-525
Cold Shock Proteins, Fatty Acids Composition and Symbiotic Effectiveness of Cold Adapted Rhizobia Associated with Lathyrus sp....Pages 526-526
Characterization of an Acid Tolerant Rhizobium spp. Population-Low Diversity as a Consequence of Adaptation to Acid Soil?....Pages 527-527
Effects of Environmental Stresses on the Growth and Nitrogen Fixation of Melilotus suaveolens ....Pages 528-528
Interactions Between Rhizobia Nodulating Trifolium ambiguum and Trifolium repens in the Field....Pages 529-529
Front Matter....Pages 530-530
Expression Analysis of the Bet Locus Encoding the Glycine Betaine Biosynthesis Pathway in Sinorhizobium meliloti ....Pages 425-425
Molecular Characterization of a Binding Protein-Dependent-Transport System for Glycine Betaine in Sinorhizobium meliloti ....Pages 531-531
Effects of CO 2 Enhancement on Growth and Nitrogen Fixation in Nodulated Pea....Pages 532-532
Effect of Short-Term N 2 Deficiency on Nitrogenase Activity and Ureide Biosynthesis in Cowpea ( Vigna unguiculata L. Walp) Nodules....Pages 533-533
Natural and Dark-Induced Senescence in Lupin Root Nodules....Pages 534-534
Nitrogen Fixation in the Deep Layers of the Subsurface Biosfere....Pages 535-535
Nitrogen-Fixing Nodules of Beach Pea ( Lathyrus Maritimus L): Status During Winter Dormancy....Pages 536-536
Bacteriocin Production by Bradyrhizobium spp Strains Isolated from the Northeast Region of Brazil....Pages 537-537
Front Matter....Pages 538-538
Genome Structure in Nitrogen-Fixing Organisms....Pages 539-539
Molecular Analysis of the Symbiotic Replicon of Rhizobium sp. NGR234....Pages 541-547
The Replicator Region of the Symbiotic Plasmid of Rhizobium etli ....Pages 549-550
Genome Rearrangements and Horizontal Gene Transfer in Bradyrhizobium japonicum ....Pages 551-551
Isolation and Characterization of an Insertion Element from Rhizobium fredii ....Pages 552-552
REP and ERIC Repetitive Sequences in Acetobacter diazotrophicus ....Pages 553-553
The Association of the Group II Intron RM-INT1 to the IS RM2011-2 Type Element, Belonging to the IS3 Family, Causes its Successful Distribution in Sinorhizobium meliloti ....Pages 554-554
Investigation of Non-Infective Rhizobium leguminosarum bv. viciae ....Pages 555-555
Ecology and Taxonomy: Introductory Remarks....Pages 556-556
Taxonomy and Phylogeny of Diazotrophs....Pages 557-558
Molecular Approaches in Microbial Ecology to Assess Genomic Diversity and Stress-Induced Gene Expression in Plant-Associated Diazotrophs....Pages 559-570
Detection and Isolation of Rhizobium Species from Soil Samples Using DNA Probes....Pages 571-576
Front Matter....Pages 577-577
A New Approach to Symbiotically Characterize Rhizobia, Based on NOD Factor Analysis....Pages 539-539
Identification of New and Emerging Species of Rhizobia Based on Cellular Fatty Acid Analysis....Pages 578-578
Use of the repC Family of Plasmids in Rhizobium leguminosarum bv Viciae to Compare Populations from Grasslands and Arable Lands....Pages 579-579
Design of a 16S rRNA-Directed Oligonucleotide Probe for Bradyrhizobium Tropical Strains....Pages 580-580
Nodulation Genes of Rhizobium galegae ....Pages 581-581
Genetic Diversity of Rhizobia Isolated from the Legume Genera Astragalus, Oxytropis and Onobrychis ....Pages 582-582
Use of Plasmid Profile and RFLP Marker to Evaluate Genetic Diversity of a Local Collection of Common Bean Rhizobia....Pages 583-583
Symbiotic and Genetic Diversity of Sinorhizobium meliloti and S. medicae Populations Associated with Medicago spp....Pages 584-584
Characterization of Tropical Isolates Nodulating Neptunia oleracea in Senegal....Pages 585-585
Diversity of Bradyrhizobia Isolated from Fifteen Spontaneous Legumes of Fallow Lands in Senegal....Pages 586-586
Genomic Fingerprinting and Diversity Studies on Cyanobacteria by Repetitive Element PCR....Pages 587-587
Phylogenetic Diversity of Indigenous Kenyan Rhizobia....Pages 588-588
Diversity and Phylogenetic Relationships Among Isolates of Mesorhizobium huakuii from Southern China....Pages 589-589
Phylogeny and Diversity of Bradyrhizobium Strains Isolated from the Root Nodules of Peanut ( Arachis ) in Sichuan, China....Pages 590-590
Genetic Diversity of Soybean Nodulating Sinorhizobium Strains from Different Areas in P. R. China Based on Phenotypic and Genetic Markers....Pages 591-591
Detection of an Azotobacter vinelandii Strain in Oil Mill Wastes....Pages 592-592
Genetic Diversity of Acetobacter diazotrophicus Isolated from Sugar Cane ( Saccharum spp) Genotypes Originated from Different Countries....Pages 593-593
Diversity and Phylogeny of Acacia spp. Nodulating Rhizobium in Morocco Assessed by Analysis of the rRna Genes....Pages 594-594
Front Matter....Pages 595-595
Contribution of Biological Nitrogen Fixation to Tropical Agriculture: Actual and Potential....Pages 597-597
Role of Biological Nitrogen Fixation in Replenishing Soil Nitrogen Pool in Cropping Systems....Pages 599-604
Front Matter....Pages 605-608
Legume Crop Yield Promotion by Inoculation with Azospirillum ....Pages 597-597
Prospects for Utilization of the Root Diazotrophs in Agriculture....Pages 609-612
Importance of Biological Nitrogen Fixation in Sustainable Agriculture....Pages 613-614
How to Exploit the Diversity of Tropical Symbiosis for Sustainable Agriculture: Fallow Legumes and Rhizobia Associated to Wild Rice....Pages 615-616
Combining Three Phenotypes for the Rapid Construction of Improved Inoculum Strains of Root Nodule Bacteria....Pages 617-618
New Inoculant Technology to Meet Changing Legume Management....Pages 619-620
The use of Nodulated and Mycorrhizal Legume Trees for Land Reclamation in Mining Sites....Pages 621-622
Soyabeans and Sustainable Agriculture: ‘Promiscuous’ Soyabeans in Southern Africa....Pages 623-624
Natural Beneficial Association of Rhizobium leguminosarum bv. trifolii and Rice Roots and its Relevance to Sustainable Agriculture....Pages 625-626
Symbiotic Nitrogen Fixation in Phaseolus vulgaris L. Var. Montalban and Ceca Growing in Two Contrasting Soil Types and Subjected to Dual Rhizobium -Mycorrhiza Inoculation....Pages 627-628
Soybean Seed Enrichment with Molybdenum to Supply the Plant Requirement....Pages 629-629
Effect of Inoculation Methods on Nodulation, N 2 Fixation and Yield of Soybeans Under Field Condition....Pages 630-630
Evaluation of Brazilian Soybean Cultivars for N 2 Fixation Capacity....Pages 631-631
Response of Soyabean ( Glycine max ) to Co-Inoculation with Rhizobia and Mycorrhizae....Pages 632-632
Studies of Rhizobia Nodulating Phaseolus vulgaris L. in Acid Soil from Brazil....Pages 633-633
Competitiveness Between Imported Strains and Local Isolates of Common Bean Rhizobia....Pages 634-634
Symbiotic Nitrogen Fixation Depending on Rates, Terms and Methods of Fertilizer Nitrogen Application....Pages 635-635
Selection for Nitrogen Fixation Increases Yield in Faba Bean....Pages 636-636
Improvement of Common Bean Production in Tunisia....Pages 637-637
Effect of Chimical Fertilization and Nitrogen Fixation on the Chickpea ( Cicer Arietinum ) Yield....Pages 638-638
Front Matter....Pages 639-639
Contributions of Biological Nitrogen Fixation by Pigeonpea to the N Economy of Pigeonpea-Based Cropping System in the Semi-Arid Tropics....Pages 597-597
Effect of Inoculum Composition on Plant Production and Nodule Occupancy in the Field....Pages 640-640
Maximizing the Symbiotic Nitrogen Fixation of White Lupin in Egypt: Compatibility of White Lupin Cultivares With Bradyrhizobium sp. ( Lupinus )....Pages 641-641
Influence of Nitrogen-Fixing Microorganisms on the Nutrition and Productivity of Spring Wheat, and on the Characteristics of Photosynthesis of Different Varieties of Spring Wheat....Pages 642-642
N 2 Fixation Budgets for Pasture and Crop Lands in Germany Estimated With 15 N Natural Abundance Method....Pages 643-643
Environmental Impact of Genetically Modified Rhizobium Leguminosarum bv. viciae ....Pages 644-644
Host Range and Competiveness of Soybean-Nodulating Rhizobia Indigenous to Zimbabwean Soils....Pages 645-645
A Transposable Element Containing Genes for Increased Nodulation Competitiveness and a Plasmid Partitioning Locus for Stabilization of Large Hup -Containing Cosmids in Rhizobium and Sinorhizobium ....Pages 646-646
Population Dynamics of Rhizobium in the Rhizosphere of Pea....Pages 647-647
Reduced Nitrate Sensitivity in White Clover....Pages 648-648
Inorganic Nitrogen Metabolism in Soybean Nodules Following Nitrate Supply....Pages 649-649
Field Efficacy of Inoculation of Rhizobium etli CE3 that Produces the Antibiotic Trifolitoxin....Pages 650-650
Effect of the Rhizobacteria of Vicia villosa Roth. on Nitrogen Fixation....Pages 651-651
The Significance of Legumes and Symbiotic N 2 -Fixation Along an Altitudinal Gradient in the ALPS....Pages 652-652
What is the Significance of Symbiotic N 2 Fixation for Grassland Ecosystems in a CO 2 -Rich Word?....Pages 653-653
Activity of Biological Nitrogen Fixation while using New Agrochemicals....Pages 654-654
Optimization of Biological Dinitrogen Fixation in Compost of Deinking Paper....Pages 655-655
The use of Industrial Byproducts as Carbon Sources or Growth Factors in the Manufacture of Aqueous Inoculants of Rhizobium and Bradyrhizobium ....Pages 656-656
Vegetation of Unconsolidated Bauxite Mining Residues in the Amazon by Direct Sowing of Inoculated Legumes Seeds....Pages 657-657
The Usefulness of a Microcosms System with Acid Soil to Assess the Persistence of Acid Tolerant Alfalfa Nodulating Rhizobia....Pages 658-658
Front Matter....Pages 659-659
Using Reporter Gene System to Monitor Applied Bradyrhizobium in Thailand....Pages 597-597
Effects of B. circulans Tal and Ps. mendocina ZM3 on N 2 -Fixing Activity, Yield and Nutrients Uptake of Wheat and Faba Bean....Pages 660-660
The Regulation of N 2 Fixation and NO 3 - Uptake in Grass-Clover Mixtures....Pages 661-661
Agricultural Application of Biological Nitrogen Fixation in China....Pages 662-662
 Bacillus mucilaginosus : The Promising Diazotrophic Bacterium for a Sustainable Agriculture....Pages 663-663
 Rhizobium leguminosarum bv. trifolii and its Interactions with Rice Plants....Pages 664-664
Nitrogen Fixation by Tropical Trees and Shrubs....Pages 665-666
Nodulation Specificity of Aspalathus linearis subsp. linearis , a Shrub Tea Legume Indigenous to the Western Cape....Pages 667-670
Selective Preference for Nodulation and Symbiotic Nitrogen Fixing Potential of Indigenous Rhizobia with African and Australian Acacias....Pages 671-672
Genetic Diversity of Nitrogen-Fixing Rhizobia Associated with Acacia Mangium in its Native Area: North Queensland, Australia....Pages 673-674
Nitrogen Fixing Trees: Research Tasks in Physiology, Symbiotic Interactions and Ecology....Pages 675-676
Genetic Diversity and Phylogeny of 16S rRNA and Symbiotic Genes of Rhizobia Isolated from Leguminous Trees....Pages 677-678
Characterization of Rhizobia Nodulating Endemic Woody Legumes of the Canary Islands by Computer-Assisted Analysis of Combined 16S rDNA-RFLP’s and rep-PCR Genomic Fingerprints....Pages 679-679
Diversity of Rhizobia Nodulating Some Fast-Growing Tree Legumes in Tropical Soils....Pages 680-680
Front Matter....Pages 681-681
Round Table: Agriculture 2020: 8 Billion People....Pages 683-683
Back Matter....Pages 685-692
....Pages 693-708