*2. rRNA based identification and detection systems for rhizobia and other bacteria. - *3. Rapid identification of Rhizobium strains by targeted PCR fingerprinting. - *4. Use of marker genes in competition studies of Rhizobium. - *5. Isolation of unique nucleic acid sequences from rhizobia by genomic subtraction: Applications in microbial ecology and symbiotic gene analysis. - *6. Potential of Rhizobium and Bradyrhizobium species as plant growth promoting rhizobacteria on non-legumes: Effect on radishes (Raphanus sativus L. ). - *7. Competition in Kenyan soils between Rhizobiumleguminosarum biovar phaseoli strain Kim5 and R. tropici strain CIAT899 using the gusA marker gene. - *8. Effects of host plant origin on nodulin activities and nitrogen fixation in Phaseolus vulgaris L. - *9. Symbiotic performance of some modified Rhizobiumetli strains in assays with Phaseolusvulgaris beans that have a high capacity to fix N2. - * 10. Improvement of biological nitrogen fixation in Egyptian winter legumes through better management of Rhizobium. - *11. Analysis of PhaseolusRhizobium interactions in a subsistence farming system. - *12. Contributions and limitations to symbiotic nitrogen fixation in common bean (Phaseolus vulgaris L. ) in Romania. - *13. Detection of Bradyrhizobium spp. and B. japonicum in Thailand by primer-based technology and direct DNA extraction. - *14. QTL mapping for nodule number and common bacterial blight in Phaseolusvulgaris L. - *15. Nitrogen fixation and nodule occupancy by native strains of Rhizobium on different cultivars of common bean (Phaseolus vulgaris L. ). - 16. Use of rep-PCR to fingerprint the genome of Azospirillum spp. - 17. FAO/IAEA co-ordinated research programme on enhancement of nitrogen fixation in leguminous crops. Language: English