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Plant growth promoting rhizobacteria are classified as microorganisms residing in the rhizosphere, possessing diverse capabilities linked to plant development and well-being. PGPRs through various direct and indirect mechanisms, exert their influence on plant development. The advantages offered by these bacteria encompass heightened accessibility to nutrients, synthesis of phytohormones, facilitation of shoot and root growth, defense against numerous plant pathogens, and diminished disease susceptibility. Furthermore, PGPR contributes to plant resilience against environmental stresses like salinity and drought, alongside the synthesis of enzymes that mitigate the damaging effects of heavy metals. In the realm of sustainable agriculture, PGPR has emerged as a pivotal strategy, showcasing the potential to curtail the reliance on synthetic fertilisers and pesticides. This is achieved by fostering plant vigour and health, as well as augmenting soil quality. While a multitude of investigations regarding PGPR can be found in the literature, this review places emphasis on studies that have practically applied PGPR to sustainable production. These applications enable a reduction in the consumption of fertilisers like phosphorus and nitrogen, as well as fungicides, while concurrently enhancing nutrient absorption. With the overarching aim of advancing sustainable agricultural practices, diverse aspects are covered in this review, including various government schemes and initiatives, innovative fertilisation methods, the role of seed microbiomes in rhizosphere colonisation, the diversity of rhizospheric microorganisms, nitrogen fixation as a means to minimise chemical fertiliser use, phosphorus solubilisation and mineralisation, and the synthesis of siderophores and phytohormones to decrease reliance on fungicides and pesticides.

来源平台：ASIAN BIOTECHNOLOGY AND DEVELOPMENT REVIEW