Mycorrhizae are symbiotic associations between fungi and plant roots that significantly enhance plant nutrition. These fungi extend the root system by providing a larger surface area for nutrient and water absorption. They facilitate the uptake of essential elements like phosphorus, which plants often struggle to access in the soil. In return, the plants supply the fungi with carbohydrates and other organic compounds. This mutualistic relationship improves soil health, promotes plant growth, and contributes to ecosystem stability by enhancing nutrient cycling.