Fig. 3
From: Exploring the intricacies of plant growth promoting rhizobacteria interactions: an omics review
Schematic representation of cross-feeding between two PGPR species within the rhizosphere: PGPRA receives metabolite A (MA) from the surrounding environment. MA undergoes enzymatic breakdown within PGPRA, yielding two metabolite derivatives (Md1 and Md2). Md1 is utilized intracellularly by PGPRA for various biological processes, whereas Md2 undergoes bioconversion to generate metabolite B (MB) which then gets excreted to the environment and serves as a substrate for PGPRB. Within PGPRB, MB undergoes enzymatic degradation into two derivatives, Md2 and Md3. Md2 is utilized intracellular for biological processes, while Md3 undergoes conversion to form metabolite C (MC), which can be utilized by PGPRA. completing the cross-feeding cycle between two PGPR species