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Rhizosphere Biofilm

Plant-Beneficial microbes can be categorized as plant growth promoting rhizobacteria (Kloepper et al., 1978). These PGPR's colonize plants roots and provide a wide range of beneficial functions for their host; e.g., nitrogen fixation, pathogen suppression, anti-fungal properties, breakdown of organic materials (Nihorimbere, V, et al., 2011). Plant exudates act as chemical signals for host specific bacteria to colonize (Wees, et al. 2008). Rhizobacteria colonization steps include attractions, recognition, adherence, colonization, and growth (Nihorimbere, V, et al., 2011). Bacteria that have been shown to be beneficial and form biofilms include Bacillus, Pseudomonas, and Azospirillum (Holguin, et al. 1996) (Babalola 2010).