Nitrogen Fixation: Proceedings of the Fifth International Symposium on Nitrogen Fixation with Non-Legumes, Florence, Italy, 10–14 September 1990

Front Matter....Pages i-xvii
A critical evaluation of the prospects for nitrogen fixation with non-legumes....Pages 1-11
Regulation of Expression of Genes for Three Nitrogenases in Azotobacter Vinelandii....Pages 13-23
Genetic Characterization of Nitrogen Fixation in Enterobacter Strains from the Rhizosphere of Cereals....Pages 25-36
Analysis of Nitrogenase Reaction Using Monoclonal Antibodies Against α-Subunit of Component I of A.Vinelandii ....Pages 37-42
Involvement of GroEL in Klebsiella pneumoniae nif gene expression and nitrogenase assembly....Pages 43-48
The effect of some terrestrial oligochaeta on nitrogenase activity in the soil....Pages 49-53
Cassette Mutagenesis of a Proposed DNA-Binding Motif in Klebsiella Pneumoniae RPON (SIGMA 54)....Pages 55-56
Characterization of a Mutant of Azotobacter Chroococcum Resistant to some Fungicides....Pages 57-58
A Chromosomal Linkage Map of Azotobacter Vinelandii ....Pages 59-60
Energy Coupling and Electron Transfer in Nitrogenase....Pages 61-62
Fluctuation of the ARA under Elaeagnus Angustifolia Canopy....Pages 63-64
The Influence of Root Exudates on Dinitrogen Fixation of Chosen Free-Living Bacteria....Pages 65-66
Soil Redox Potential in Presence of Azospirillum....Pages 67-68
Biofertilization of Maize with Free-Living Nitrogen Fixing Bacteria: Results of Field Trials on Grain Production....Pages 69-70
Kinetics of Kelthane Uptake and Distribution in Azospirillum Lipoferum....Pages 71-72
Bioaccumulation of the Acaricide Kelthane (Dicofol) by Azospirillum Lipoferum ....Pages 73-74
Effect of Biofertilizers on Controlling Fusarium Solani f. Sp. Phaseoli....Pages 75-75
Phyllospheric Nitrogen Fixing Bacteria in Tillandsia Leaves....Pages 77-78
Nif and Nod Genes in Azospirillum....Pages 79-87
Control of nitrogenase in Azospirillum sp.....Pages 89-96
Biology of nitrogen-fixing Rhizobacteria....Pages 97-103
Biological nitrogen fixation associated with sugar cane....Pages 105-111
Physological Properties Of Azospirillum Brasilense Involved In Root Growth Promotion....Pages 113-125
Regulation of the nifHDK Genes Transcription in Azospirillum Brasilense ....Pages 127-132
Cloning of the nifA and nifB Genes of Azospirillum Brasilense Strain FP2....Pages 133-138
Regulation of Nitrogen Fixation Genes in Azospirillum :Characterization of a nif Regulatory Region....Pages 139-145
 Azospirillum -Plant Interaction: A Biochemical Approach....Pages 147-153
Osmotolerance of diazotrophic rhizosphere bacteria....Pages 155-159
Azospirillum-Gramineae Interaction: Effect of Indole-3-Acetic Acid....Pages 161-168
DNA Restriction Fingerprint for the Identification of Azospirilla....Pages 169-174
Alterations in membrane potential and in proton efflux in plant roots induced by Azospirillum brasilense ....Pages 175-179
Effect of soil organic matter on chickpea inoculated with Azospirillum brasilense and Rhizobium leguminosarum bv. ciceri ....Pages 181-185
Active attachment of Azospirillum brasilense to root surface of non-cereal plants and to sand particles....Pages 187-193
Association of Alcaligenes faecalis with wetland rice....Pages 195-199
Sunflower inoculation with Azospirillum and other plant growth promoting rhizobacteria....Pages 201-204
Characterization of a pectinolytic activity in Azospirillum irakense ....Pages 205-209
Associative N 2 -fixation in plants growing in saline sodic soils and its relative quantification based on 15 N natural abundance....Pages 211-218
Genetic Analysis of the Azospirillum Plant-Root Interaction....Pages 219-224
Dinitrogen fixation and infection of grass leaves by Pseudomonas rubrisubalbicans and Herbaspirillum seropedicae....Pages 225-229
Growth Parameters of Microaerobic Diazotrophic Rhizobacteria Determined in Continuous Culture....Pages 231-234
Infection of Intact Roots of Kallar Grass and Rice Seedlings by Azoarcus ....Pages 235-242
Strain-specific salt tolerance and chemotaxis of Azospirillum brasilense and their associative N-fixation with finger millet in saline calcareous soil....Pages 243-247
Nitrate Reductase Activity of Azospirillum Brasilense SP7 and SP245 V — and C — Forms in Continuous Culture.....Pages 249-253
Microcalorimetric Study of the Growth of Azospirillum Brasilense : Relation Between Heat Production and other Growth Parameters....Pages 255-268
Nitrogen fixation in para-nodules of wheat roots by introduced free-living diazotrophs....Pages 269-273
Firefly Luciferase Expression on Nitrogen Fixation with Non-Legumes....Pages 275-281
Nucleotide sequence of regulatory regions of Azospirillum brasilense .....Pages 283-284
Nucleotide sequence and expression of an Azospirillum nod homologous region....Pages 285-286
Isolation and Characterization of TN5 Induced Azospirillum Brasilense Mutants Alterated in Calcofluor Straining....Pages 287-288
In Vitro Construction of Lacz Gene Fusions with the Nifhdk Operon of Azospirillum Brasilense.....Pages 289-290
Isolation and Characterization of Azospirillum Brasilense Mutants Altered in the Production of Siderophores....Pages 291-292
Taxonomic Relationships Between [Pseudomonas] Rubrisubalbicans, Some Clinical Isolates (EF Group 1), Herbaspirillum Seropedicae And [Aquaspirillum] Autotrophicum....Pages 293-294
Study on the Binding of Azospirillum Strains to Plant Tissues....Pages 295-296
Effect of Azospirillum Lipoferum and GA 3 on Root Growth in Corn....Pages 297-298
Interactions of Va-Mycorrhizae with Acetobacter diazotrophicus Inoculated into Sweet Potatoes (Ipomoea batatas L. Lam.)....Pages 299-300
Genetic and Biochemical Studies on the Production of Indole-3-Acetic Acid (Iaa) in Azospirillum Lipoferum....Pages 301-302
Autoregulation of PH by Azospirillum Spp....Pages 303-304
Nitrogen Fixing Bacteria Isolated From Maize Root and Antagonistic Activity Against Fusarium Sp....Pages 305-306
Some Characters of Azospirillum Spp. Isolated from the Rice Fields Near Hanoi, Vietnam....Pages 307-309
Melanin Production By Azospirillum Lipoferum Strains....Pages 311-312
Effect of pO 2 , pCO 2 and Agitation on Growth Kinetics of Azospirillum Lipoferum Under Fermentor Conditions....Pages 313-314
Selection of Wetland Rice Genotypes for Associated Biological Nitrogen Fixation....Pages 315-316
Enrichment of Tomato Sand Cultures with Composite Inocula of Associative Dinitrogen Fixers, P-Dissolving Bacilli and Vam....Pages 317-319
Partial Purification and Properties of Two Aromatic Amino Acid Aminotransferases from the A. Brasilense Uap 14 Strain Indole-3-Acetic Acid Producer....Pages 321-322
Characterization and Regulation of Two Enzymatic Activities Involved in Biosynthesis of Indoleacetic Acid in Azospirillum Brasilense UAP 14 Strain....Pages 323-324
Analysis of extracellular polysaccharides of Azospirillum brasilense ....Pages 325-326
NO 3 - and Fe ++ uptake in durum wheat is affected by Azospirillum brasilense inoculation....Pages 327-328
Efficiency of Azotobacter Strains Depending on Nitrogen Level and Sugar Beet Genotypes....Pages 329-331
Specific Responses of Azotobacter Strains and Sugar Beet Genotypes....Pages 333-335
Associative Diazothrops of Different Systematic Groups and Their Effect on the Productivity of Agricultural Crops....Pages 337-337
Construction of a Growth Chamber for Long-Termed Axenic Plant Cultivation....Pages 339-340
N2 Fixing Bacteria in the Rhizosphere of Natural Populations of Italian Ryegrass ( Lolium Multiflorum L.)....Pages 341-342
Studies on Few Strains of Azospirilla Colonizing Maize Rhizosphere: Their Establishment on Roots and Effects on Plant Physiology....Pages 343-344
Root-Associated Diazotrophs Used as Plant Growth Stimulators....Pages 345-346
Screening Program for the Isolation of N2-Fixing Bacteria of the Genus Azospirillum....Pages 347-348
Interactions  Between Azospirillum and Sorghum  Rhizosphere Isolates Under Different Cultural Conditions....Pages 349-350
Competition in Sorghum Rhizosphere Among Azospirillum and Indigenous Bacteria....Pages 351-352
Nitrogenase Activity in the Tobacco Rhizosphere....Pages 353-354
Effect of Different Pesticides on Azospirillum Brasilense ....Pages 355-356
Experiments of Azospirillum Bacterization of Maize Seeds (Zea Mais L.) in Open Field....Pages 357-358
Nitrogen Fixation in Filamentous Cyanobacteria....Pages 359-365
Recent Aspects on the Hydrogenase-Nitrogenase Relationship in Cyanobacteria....Pages 367-375
Azolla and other plant-cyanobacteria symbioses: Aspects of form and function....Pages 376-388
Structure, Metabolism and Nitrogenase Regulation in the Azolla-Anabaena Association....Pages 389-398
Regulation of Nitrogen Assimilation in the Cyanobacterium Synechococcus ....Pages 399-404
Calcium, Dinitrogen Fixation and Calmodulin in a Nostoc .....Pages 405-409
‘Respiratory protection’ of the nitrogenase in dinitrogen-fixing cyanobacteria....Pages 411-418
Photosynthetic Oxygen Evolution in the Filamentous Cyanobacterium Oscillatoria Chalybea : Interrelationship Between Water Splitting, Hydrogen Peroxide Decomposition and Nitrate Metabolism....Pages 419-424
Photosynthesis and Respiration in Mixotrophic Cultures of the Cyanobacterium Anabaena Variabilis .....Pages 425-430
A Possible Role of Flavodoxin in Nitrogen Fixation in Heterocysts from Anabaena ....Pages 431-436
Photosynthesis and Nitrogen Fixation in the Unicellular Cyanobacterium Gloeothece PCC 6909....Pages 437-442
Diurnal and seasonal variations of nitrogen fixation and photosynthesis in cyanobacterial mats....Pages 443-446
Superoxide Dismutase Detection in Anabaena Azollae Strasb. Isolated from Azolla Filiculoides Lam.....Pages 447-452
Are bacteria the third partner of the Azolla-Anabaena symbiosis?....Pages 453-456
Effects of antibiotic treatments on Azolla-Anabaena and Arthrobacter ....Pages 457-461
The Anabaena-Azolla symbiosis: Diversity and relatedness of neotropical host taxa....Pages 463-466
Assessment and attempt to explain the high performance of Azolla in subdesertic tropics versus humid tropics....Pages 467-471
Constraints for the Widespread Use of Azolla in Rice Production....Pages 473-479
Heterotrophic metabolism and regulation of uptake hydrogenase activity in symbiotic cyanobacteria....Pages 481-486
Nitrogen fixing cyanobacteria potential uses....Pages 487-490
Metabolic Regulation of Nitrogen Fixation in Anoxygenic Phototrophic Bacteria....Pages 491-502
Organization of the Genes Encoding Uptake Hydrogenase in the Photosynthetic Bacterium Rhodobacter Capsulatus ....Pages 503-508
Diazotrophic mixed culture of Azotobacter vinelandii and Rhodobacter capsulatus ....Pages 509-512
Structural and Genetic Studies on Four Ferredoxins from the Photosynthetic Bacterium Rhodobacter Capsulatus ; Probable involvement in Nitrogen Fixation....Pages 513-517
Growth and Amino Acid Liberation by a Mutant Strain of Anabaena Variabilis Resistant to the Amino Acid Analogue Azetidine 2-Carboxylic Acid....Pages 519-520
Interaction B-Ca on the Nitrogenase Activity in Nitrogen-Fixing Cyanobacteria — ( Anabaena PCC 7119)....Pages 521-522
The Effect of Ammonia-Excreting Cyanobacteria on the Growth of Rice....Pages 523-524
Photoautotrophic and Photoheterotrophic N 2 Fixation in Oscillatoria Spp Exposed to Alternating Light and Darkness....Pages 525-526
Occurrence and Localization of an Uptake Hydrogenase in the Filamentous Heterocystous Cyanobacterium Nostoc PCC 73102....Pages 527-528
The Effect of Phytohormones on Nitrogenase Activity and Growth of Nostoc Muscorum Agardh....Pages 529-530
Effect of Ammonium on the Nitrogenase Activity of Anabaena Variabilis ....Pages 531-532
Modification and in-Vitro Activation of Dinitrogenase Reductase from Anabaena Variabilis....Pages 533-534
Nitrogen Fixation in Spanish Ricefields....Pages 535-536
Production of Dinitrogen-Fixing Cyanobacteria for Soil Inoculation....Pages 537-538
Productivity of the Marine Nitrogen Fixing Cyanobacterium Nodularia Sp. in Outdoor Culture....Pages 539-540
Studies on Rice Production Using Azolla as Biofertilizer in Guinea-Bissau....Pages 541-542
The Roles of Anabaena Azollae in Anabaena-Azolla Association....Pages 543-544
Field Studies Using 15N Dilution Techniques on Azolla N Contribution to Rice in Nigeria....Pages 545-549
Localization of Nitrogen in the Azolla — Anabaena Symbiosis by Eftem....Pages 551-553
The Pattern of Release of Azolla-Nitrogen in Flooded and Unflooded Soils at Three Temperatures....Pages 555-559
Factors Controlling Morhphological Changes and the Life Cycle of Nitrogen-Fixing Cyanobionts in Different Azolla Species....Pages 561-562
Fatty Acid Composition of Free-Living Anabaena and Nostoc Cyanobacteria and of Cyanobionts from Different Azolla Species....Pages 563-564
Dinitrogen Fixation (ARA) in Lobaria Pulmonaria ....Pages 565-566
Biological Nitrogen Fixation in Arctic Soil and Vegetation Determined by the Acetylene Reduction Methode....Pages 567-568
The Nostoc-Gunnera Magellanica Symbiosis: Developmental Patterns Related to Nitrogen Fixation....Pages 569-570
Morphological and Physiological Characterization of N 2 -Fixing Symbiotic Cyanobacteria....Pages 571-572
Genetic Organization of Rhodobacter Sphaeroides Chromosome Region Containing Gene Glna ....Pages 573-574
Factors Involved in Selection of Nif- Mutants in N-Limited Cultures of the Photosynthetic Bacterium Rhodobacter capsulatus ....Pages 575-576
Genetic Characterization of the Gene Encoding Ferredoxin II from the Nitrogen Fixing Phototrophic Bacterium Rhodobacter Capsulatus ....Pages 577-578
DNA Sequence of a New Ferredoxin Gene Mapping in a nif Region of Rhodobacter Capsulatus, and Expression in Escherichia Coli....Pages 579-580
Analysis of DNA Restriction Pattern in the Genus Ectothiorhodospira ....Pages 581-582
Effect of Mo, V and W on the Growth and Nitrogenase Synthesis in Phototrophic Bacteria....Pages 583-584
Nitrogen Metabolism in Rhodobacter Capsulatus ....Pages 585-586
Purification of a Pyruvate: Oxidoreductase from Nitrogen Fixing Rhodospirillum Rubrum ....Pages 587-588
Derepression of Nitrogenase by 2-Ketoglutarate in a Glutamate Auxotroph of Rhodobacter Sphaeroides ....Pages 589-590
Outdoor Hydrogen Photoevolution by Immobilized Cells of Rhodopseudomonas Palustris ....Pages 591-592
Azolla Biomass as Green Manure for Rice in Calabria....Pages 593-594
Molecular ecology of Frankia : Advantages and disadvantages of the use of DNA probes....Pages 595-600
Expression of Actinorhizins in the Development of the Frankia-Alnus Symbiosis....Pages 601-613
Rapid, exponential growth and increased biomass yield of some Frankia strains in buffered and stirred mineral medium (BAP) with phosphatidyl choline....Pages 615-619
Enhancing Nodulation and Growth of Casuarina Glauca Planted in Substrate Already Infected with Frankia ....Pages 621-628
Structure of the Genus Frankia ....Pages 629-633
Grouping of Frankia Strains by DNA-DNA Homology: how many Genospecies are in the Genus Frankia?....Pages 635-636
Genetic Diversity of Elaeagnus -Isolated Frankia Strains Infective on both Alnus and Elaeagnus ....Pages 637-638
The Infectivity and Symbiotic Performance of a Frankia Strain as Affected by its Growth Medium Towards Hippophae Rhamnoides L.....Pages 639-640
Utilisation and Metabolism of C1 Compounds by Frankia ....Pages 641-642
Nitrogenase Activity and Nitrogenase Protein Levels in a Frankia-Alnus incana Symbiosis Subjected to Darkness....Pages 643-644
Secretion of Aminopeptidases and Proteinases by Frankia sp BR.....Pages 645-646
Interaction between VAM and actimorhizal symbionts in Alnus nepalensis .....Pages 647-649
Comparison Between Quercus Robur/Alnus Cordata Mixed Plantation and Quercus Robur in Monoculture....Pages 651-652
EEC Regulatory Requirements for the use and Release of Genetically Modified Organisms....Pages 653-658
Studies of the Potential for Expression of Nitrogenase Fe-Protein in Cells of Higher Plants....Pages 659-669
Back Matter....Pages 671-680