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• They can act as biofertilizers (increasing availability of nutrients to plant)

• Phytostimulators (plant growth promotion by the production of phytohormones)

• Rhizoremidiators (degrading organic pollutants)
• Biopesticides (controlling disease by production of antibiotics and antifungal

metabolites).

Figure 1.1 Mechanism of Plant Growth Promoting Rhizobacteria (García-Fraile et al.,

2015)

Plant Growth Promoting Rhizobacteria
PGPR mediated plant development occurs through alteration of the entire microbial

community in the rhizosphere via production of various substances which described in Table
1.1

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