Biosynthesis and Function of Rhizobacterial Secondary Metabolites in Plant Abiotic Stress Tolerance
November 2025
in “
Frontiers of Agricultural Science and Engineering
”
Studysummary This study observed that rhizobacterial strain RT3 significantly improved drought tolerance in lettuce by increasing survival rates and fresh biomass after rewatering, with metabolites such as proline and glycine enhancing stress resilience.
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Rhizobacterial strains RK1, RT2, and RT3 produce various bioactive secondary metabolites, with proline being the most abundant and serving as a crucial osmoprotectant during drought stress. The RT3 strain notably improved drought tolerance in lettuce, resulting in higher survival rates and fresh biomass after rewatering. Metabolites like proline, glycine, and vitamins play a significant role in enhancing plant stress resilience.
