Molecular genetic dissection of nodule formation and regulation in legumes -- Redox state and antioxidant defense in rhizobia: Effects in legume symbiosis -- Impact of Rhizobium on rhizospheric microbial communities -- Tracking milestone advances in exploiting Rhizobium in biocontrol of plant diseases -- Persistence and survival of Rhizobium in soil -- Restoration of degraded pasture soils on the basis of EM Associations -- Rhizobium as a crop enhancer and biofertilizer for increased non-legume production -- Role of root-nodule bacteria in improving soil fertility and growth attributes of leguminous plants under arid and semi arid environments -- Diversity, nitrogen fixation and biotechnology of rhizobia from arid zone plants -- Bradyrhizobia Mediated Drought Tolerance in Soybean and Mechanisms Involved -- Rhizobium in Rice Yield and Growth Enhancement -- Control strategy of plant parasitic nematodes by Rhizobium in agricultural crops -- Plant growth promoting Rhizobium (PGPR): mechanisms and biotechnological prospectives -- Identification and molecular characterization of rhizobia nodulating legumes -- Genetic Construction of Stable Rhizobial Genotypes for Improved Symbiotic Nitrogen Fixation -- Hierarchical Clustering based Algorithms and other in silico Techniques for Phylogenetic Analysis of Rhizobia -- Species diversity of Rhizobia -- Biotechnological perspectives of plant-Rhizobium symbiosis -- Exopolysaccharide production in Rhizobia :   Biotechnological Implications -- Cryopreservation of rhizobial strains.