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Harnessing Nitrogen-Fixing and Phosphate-Mobilizing Bacteria for Sustainable Agriculture
Madina Rakhmatova1, Tokhir Khusanov2, Khabibjon Kushiev1
1Scientific Research Institute of Agrobiotechnology and Biochemistry, Gulistan State University, Gulistan 120100, Uzbekistan.
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This review investigates the multifaceted roles of nitrogen-fixing and phosphate-mobilizing bacteria in natural ecosystems, with a particular focus on their contributions to plant growth and sustainable soil management. These microbial communities contribute substantially to nutrient cycling by converting atmospheric nitrogen into plant-available forms and mobilizing insoluble phosphorus in soil, thereby enhancing soil fertility and promoting sustainable plant productivity. This review synthesizes current knowledge on the mechanisms underlying biological nitrogen fixation, phosphate solubilization and mineralization, and the production of plant growth-promoting metabolites. Particular attention is given to plant-microbe interactions and their role in improving nutrient availability, regulating plant physiological processes, and enhancing tolerance to abiotic stresses such as salinity, drought, and heavy metal contamination. The findings underscore the ecological importance of these plant-associated microbial communities and highlight their potential applications in biofertilizer and biostimulant development for sustainable agriculture and reduced dependence on synthetic fertilizers.
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