Rhizosphere is the narrow region of soil that is directly influenced by root secretions and associated soil microorganisms. The microbe- plant interaction in the rhizosphere can be beneficial, neutral, variable, or deleterious for plant growth. Rhizobacteria that exert beneficial effects on plant development are termed plant growth promoting rhizobacteria (PGPR). In the present investigation the biodiversity of bacteria in rhizosphere and rhizoplane of Solanum melongena and their physiochemical characteristics was studied. | Biodiversity of bacteria in the rhizosphere of solanum melongena L. (Brinjal) and their characterization