The primary function of mycorrhizal fungi in ecology is to form symbiotic relationships with plant roots, enhancing nutrient uptake and soil health. These fungi extend the root systems of plants, facilitating the absorption of water and essential nutrients, particularly phosphorus. This mutualistic relationship aids plant growth and resilience, promotes soil structure, and supports various ecosystem functions. Mycorrhizal fungi also contribute to carbon cycling by sequestering carbon in the soil, playing an essential role in both plant health and broader environmental stability.