BIOLOGICAL ROLE OF BACTERIA BELONGING TO THE AZOSPIRRILLUM GENUS IN PROMOTING PLANT GROWTH AND PROSPECTS FOR THEIR APPLICATION IN AGRICULTURE
Keywords:
Azospirillum bacteria, biological nitrogen fixation, rhizosphere microbiota, plant-microorganism symbiosis, phytostimulants, biological fertilization, agroecosystem stability, bioinoculation.Abstract
Bacteria of the genus Azospirillum are gram-negative, facultative anaerobic, rhizosphere-dwelling microorganisms that form symbiotic relationships with plants and significantly stimulate their growth. Their main biological function is molecular nitrogen fixation, which improves the nitrogen balance in the soil and reduces the need for mineral fertilizers. Phytohormones produced by Azospirillum - indole-3-acetic acid (IAA), gibberellins and cytokinins - enhance root development, improve nutrient uptake and increase tolerance to stress factors. Therefore, these bacteria are widely used in agriculture as environmentally safe and cost-effective biological fertilizers.
References
Bashan Y. & de-Bashan L.E. "How the plant growth-promoting bacterium Azospirillum promotes plant growth – a critical assessment." (Advances in Agronomy, 2010)
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Copyright (c) 2025 Raximova Ismigul Olimjon qizi , Otamirzayeva Xojarbibi Mahmudjon qizi, Maxbubova Ruxshona Oybek qizi

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