Current Issues in Symbiotic Nitrogen Fixation: Proceedings of the 5th North American Symbiotic Nitro

Preface. 1. Advances in the Positional Cloning of Nodulation Genes in Soybean; G. Caetano-Anollés, P.M. Gresshoff. 2. Molecular Analysis of Actinorhizal Symbiotic Systems: Progress to Date; B.C. Mullin, S.V. Dobritsa. 3. Diversity of Rhizobia Isolated from Various Hedysarum Species; B.D. Kishinevsky, et al. 4. Diazotrophic Endophytes: Progress and Prospects for Nitrogen Fixation in Monocots; E.W. Triplett. 5. Drought-Avoidant Soybean Germplasm Maintains Nitrogen-Fixation Capacity under Water Stress; P. Patterson, C.M. Hudak. 6. Phylogeny and Taxonomy of Rhizobia; J.P.W. Young. 7. Comparison of Rhizobitoxine-Induced Inhibition of beta-Cystathionase from Different Bradyrhizobia and Soybean Genotypes; K. Xiong, J.J. Fuhrmann. 8. Assimilation of nod Gene Inducer 14C-Naringenin and the Incorporation of Labelled Carbon Atoms Into the Acyl Side Chain of a Host-Specific Nod Factor Produced by Rhizobium leguminosarum bv. viciae; J.R. Rao, et al. 9. Corresponding 16S rRNA Gene Segments in Rhizobiaceae and Aeromonas Yield Discordant Phylogenies; B.D. Eardly, et al. 10. Rapid Evaluation of Peat-Base Legume Inoculant Using Immunomagnetic Beads for Cell Retrieval and Fluorescent Nucleic Acid Probes for Viability Analysis; P.E. Olsen, W.A. Rice. 11. Detection of Genetic Variation in Bradyrhizobium japonicum USDA 110 Variants Using DNA Fingerprints Generated with GC Rich Arbitrary PCR Primers; J.N. Mathis, D.E. McMillin. 12. Mimosine Produced by the Tree-Legume Leucaena Provides Growth Advantages to Some RhizobiumStrains that Utilize it as a Source of Carbon and Nitrogen; M. Soedarjo, D. Borthakur. 13. Subnanomolar Concentrations of Membrane Chitolipooligosaccharides from Rhizobium leguminosarum Biovar Trifolii are Fully Capable of Eliciting Symbiosis-Related Responses on White Clover; G.G. Orgambide, et al. 14. Analysis of the Two Nodulins, Sucrose Synthase and ENOD2, in Transgenic Lotus Plants; L. Skøt, et al. 15. Hopanoid Lipids in Bradyrhizobium and Other Plant-Associated Bacteria and Cloning of the Bradyrhizobium japonicum Squalene-Hopene Cyclase Gene; E.L. Kannenberg, et al. 16. Presence of Unique Repeated Insertion Sequences in Nodulation Genes of Rhizobium `hedysari'; F. Meneghetti, et al. 17. Enhanced Competitiveness of a Bradyrhizobium japonicum Mutant Strain Improved for Nodulation and Nitrogen Fixation; L.D. Kuykendall, et al. 18. Phage Susceptibility and Plasmid Profile Analysis of Sinorhizobium fredii; F.M. Hashem, et al. 19. A Diazotrophic Bacterial Endophyte Isolated from Stems of Zea mays L. and Zea luxurians Iltis and Doebley; J.A. Palus, et al. 20. Identification of Enzymes Involved in Indole-3-Acetic Acid Degradation; M.R. Olesen, B.U. Jochimsen. 21. Toward a New Concept of the Evolution of Symbiotic Nitrogen Fixation in the Leguminosae; J.A. Bryan, et al. 22. Lipopolysaccharide Core Components of Rhizobium etli Reacting With a Panel of Monoclonal Antibodies; E.L. Kannenberg, et al. 23. Diversity in Symbiotic Specificity of Cowpea Rhizobia Indigenous to Zimbabwean Soils; S. Mpepereki, et al.