The term rhizosphere signifies the zone of the soil around affected the plant roots. Rhizospheric soil shows immense microbiological activity than that away from the roots of plants. The rhizosphere is a hot spot of microbial interactions as exudates released by plant roots are a main food source for microorganisms and a driving force of their population density and activities. The rhizosphere harbors many organisms that have a neutral effect on the plant, but also attracts organisms that exert deleterious effects, (Jones et al 2004; Hinsinger et al 2006). The activity of plant roots has an impact on the physicochemical conditions as well as on the biological activity in the surrounding rhizosphere compartment, and vice versa. These processes are determining nutrient availability, cycling of nutrients and solubility of toxic elements for plants and microorganisms, thereby creating the rhizosphere as a unique micro-ecosystem, which can exhibit completely different properties compared with the bulk soil, not directly influenced by the activity of roots. (Neumann et al 2009)