PGPR: A Plant Growth Enhancer in Sustainable Agriculture
Keywords:
PGPR, Crop production, Plant nutrition, Soil fertility, Sustainable agricultureAbstract
Plant growth-promoting rhizobacteria (PGPR) are beneficial microorganisms that live in the rhizosphere of plants and play an important role in their growth and development. The importance of PGPR for long-term agricultural viability is discussed in this review. Some plant growth mechanisms are nitrogen fixation, phosphate solubilization, and hormone secretion. PGPR's potential benefits include increased plant tolerance to biotic and abiotic stress, reduced chemical fertilizers and pesticide usage, and improved nutrient availability, soil fertility, and absorption. PGPR has various ecological and practical purposes in the soil rhizosphere. PGPR plays a key function in agroecosystems by increasing the synthesis of phytohormones and metabolites, which directly affect plant growth. Phytopathogens can be stopped in their tracks, a plant's natural defenses strengthened, and so on. The PGPR performs a variety of tasks, including the synthesis of indole acetic acid (IAA), ammonia (NH3), hydrogen cyanide (HCN), and catalase. In addition to promoting nutrient uptake, PGPR regulates hormone production that boosts root size and strength. PGPR for sustainable agriculture offers numerous ecological and economic benefits, including increased crop production, reduced environmental pollution, and improved food security.
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