What is Plant Growth Promoting Rhizobacteria (PGPR)? Mechanism of action of Plant Growth Promoting Rhizobacteria (PGPR) The synthesis of different chemicals alters the entire microbial community in the rhizosphere niche to facilitate PGPR-mediated plant growth promotion. In general, PGPR stimulates plant growth either directly by enabling resource acquisition (nitrogen, phosphorus, and critical minerals) or indirectly … Read more