Ebook: Nitrogen fixation research progress: Proceedings of the 6th international symposium on Nitrogen Fixation, Corvallis, OR 97331, August 4–10, 1985

This Symposium, held August 4-10, 1985 on the campus of Oregon State University in Corvallis, is the sixth of a series of international symposia concerned with broad aspects of the fixation of nitrogen gas by biological and chemical means. The first symposium of this series was held in Pullman, Washington (1974), the second in Salamanca, Spain (1976), the third in Madison, Wisconsin (1978), the fourth in Canberra, Australia (1980) and the fifth in Noordwij~erhout, The Netherlands (1983). Prior to the organization of these symposia, small groups of usually no more than 10 or 12 of the now "old guard" in the field met in some obscure places, including Butternut Lake, Wisconsin, Sanabel Island, Florida and Camp Sage hen in California, to discuss developments in the field. Concern about an energy crisis in the nineteen seventies served as an impetus for the organization of workshops and preparatiol. of publications urging government agencies to provide funds for the support of several neglected areas in the field, including the genetics of nitrogen-fixing organisms and the biology of Frankia. In looking back, it becomes apparent that there have been drastic changes in the extent of research support in the field and in the contents of the programs of the continuing series of symposia.

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Content:
Front Matter....Pages I-XIV
Front Matter....Pages 1-1
Host Plant Characteristics of Common Bean Lines Selected Using Indirect Measures of N2 Fixation....Pages 3-9
Genetic Improvement of Symbiotic Nitrogen Fixation in Legumes....Pages 11-17
Plant Host Genetics of Nodulation and Symbiotic Nitrogen Fixation in Pea and Soybean....Pages 19-25
Legume Nodulation Mutants....Pages 39-45
Genetic Improvement of Legume-Rhizobium Symbiosis....Pages 27-38
Legume Nodulation Mutants....Pages 39-45
Structure and Transcription of the Soybean Leghemoglobin and Nodulin Genes....Pages 47-52
Nodulin Gene Expression in Pisum Sativum....Pages 53-59
Poster Summaries....Pages 61-67
Discussion Group Summary (Convenor: N.J. Brewin)....Pages 69-69
Front Matter....Pages 71-71
Identification And Organization Of Rhizobium Meliloti Genes Relevant To The Initiation And Development Of Nodules....Pages 73-78
Plant-Secreted Factors Induce The Expression of R.Trifolii Nodulation and Host-Range Genes....Pages 79-85
Developmental Biology of the Rhizobium Meliloti-Alfalfa Symbiosis: A Joint Genetic and Cytological Approach....Pages 87-93
Genes Involved in Nodule Development....Pages 95-100
Genes Involved in Competitiveness....Pages 101-107
Miscellaneous....Pages 109-115
Front Matter....Pages 117-127
Discussion Group Summary (Convenor: G. Ditta)....Pages 128-131
Organization and Regulation of Rhizobius meliloti and Parasponia Bradyrhizobium Nitrogen Fixation Genes....Pages 132-140
Poster Summaries....Pages 141-145
A Model of Nutrient Exchange in the Rhizobium-Legume Symbiosis....Pages 146-154
Genes Involved in the Carbon Metabolism of Bacteroids....Pages 71-71
Carbon Metabolism and Ammonia Assimilation....Pages 155-156
Hydrogen Metabolism....Pages 157-163
Discussion Group Summary (Convenor: N.J. Brewin)....Pages 165-171
Front Matter....Pages 173-179
Recognition and Infection by Slow-Growing Rhizobia....Pages 181-192
Competition and Attachment....Pages 193-199
Host-Induced Phenomena....Pages 201-207
Compositional Variations....Pages 209-215
Actinorhizal Systems....Pages 217-226
Discussion Group Summary (Convenor: R.W. Carlson)....Pages 227-233
Front Matter....Pages 235-235
Carbon Metabolism in Legume Nodules....Pages 237-237
Factors Limiting N2 Fixation by the Legume-Rhizobium Symbiosis....Pages 239-245
Front Matter....Pages 247-253
The Site of Nitrogenase in Frankia in Free-Living Culture and in Symbiosis....Pages 255-261
Use Of 13N to Study N2 Fixation and Assimilation by Cyanobacterial-Lower Plant Associations....Pages 262-264
Structural Studies....Pages 265-270
Factors Affecting Nodulation....Pages 271-272
Nitrogen Metabolism....Pages 273-274
Carbon Metabolism....Pages 275-275
Oxygen Transport and Effects....Pages 277-283
Hydrogen Uptake and Evolution....Pages 285-291
Actinorhizal Systems....Pages 275-275
Associative Relationships....Pages 293-299
Discussion Group Summary (Convenor: R.V. Klucas)....Pages 301-307
Front Matter....Pages 309-314
Physiological and Biochemical Aspects of N2-Fixing Cyanobacteria....Pages 315-321
Associative Bacteria....Pages 322-335
Cyanobacteria....Pages 336-345
Frankia....Pages 346-355
Miscellaneous....Pages 356-361
Front Matter....Pages 362-371
Discussion Group Summary (Convenor: M.G. Yates)....Pages 372-374
Front Matter....Pages 375-376
Development of the Genetics of Heterocyst-Forming Cyanobacteria....Pages 377-377
Genetics of Nitrogen Fixation in Photosynthetic Bacteria....Pages 379-385
Analysis of nif Sequences....Pages 387-393
Rearrangement of nif DNA....Pages 395-402
Biochemistry and Physiology of Mutants....Pages 403-408
Discussion Group Summary (Convenor: C. Elmerich)....Pages 409-418
Front Matter....Pages 419-428
Nitrogenase Mechanism — An Overview....Pages 429-436
Regulation of Nitrogenase Activity in the Anoxygenic Phototrophic Bacteria....Pages 437-440
Structure and Mechanism of the Azobobacter vinelandii Fe-Protein....Pages 441-447
The Role of Fe Protein in Nitrogenase Catalysis....Pages 377-377
Studies on the Structure and Function of the MoFe Protein of Nitrogenase....Pages 449-450
Front Matter....Pages 451-451
Mossbauer and EPR Studies on Nitrogenase....Pages 453-460
The Iron-Molybdenum Cofactor of Nitrogenase....Pages 461-467
Redox and Compositional Insights into the Iron-Molybdenum Cofactor of Azotobacter Vinelandii Nitrogenase as a Guide to Synthesis of New Mo-Fe-S Clusters....Pages 469-476
Mechanism....Pages 477-483
Proteins and Cofactors....Pages 485-490
Purification and Properties....Pages 491-496
Regulation....Pages 497-503
ATP Effects....Pages 505-511
Discussion Group Summary (Convenor: R.H. Burris)....Pages 512-516
From Phosphorus Towards Sulphur: The Development of New Dinitrogen Binding Sites....Pages 517-519
Detection of Intermediates in Chemical N2 Fixation....Pages 520-530
Poster Summaries....Pages 531-537
Discussion Group Summary (Convenor: G.J. Leigh)....Pages 539-540
Front Matter....Pages 541-541
Nitrogen Fixation in Agriculture in Temperate Regions....Pages 543-549
Current Research Strategies for Use of Actinorhizal Symbioses in Forestry....Pages 551-557
Biological Nitrogen Fixation in Tropical Agriculture....Pages 559-565
Applications of Nitrogen Fixation in Agriculture and Forestry....Pages 567-576
Management Practice....Pages 577-583
Rhizobial Inoculant Technology....Pages 585-590
Frankia....Pages 541-541
Front Matter....Pages 591-596
Free Living Fixers....Pages 597-603
Quantitation....Pages 605-610
Discussion Group Summary (Convenors: D.B. Hannaway and T.L. Righetti)....Pages 611-616
Front Matter....Pages 617-621
Current Thoughts on Nitrogen Fixation....Pages 622-625
Back Matter....Pages 626-631
....Pages 632-636