Alexander P. Hansen & Devendra K. Choudhary 
Rhizobium Biology and Biotechnology [PDF ebook] 

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.