Biosynthesis and Function of Rhizobacterial Secondary Metabolites in Plant Abiotic Stress Tolerance

    November 2025 in “ Frontiers of Agricultural Science and Engineering ”
    Erfan Dani SEPTIA, Nur Izzatul MAULIDAH, Andi KURNIAWAN
    TLDR Rhizobacterial strain RT3 helps lettuce survive drought by producing protective substances like proline.
    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.
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