Mycorrhizal associations are partnerships between fungi and the roots of plants. In this relationship, the fungi help the plants absorb water and essential nutrients, such as phosphorus, from the soil. In return, the plants provide the fungi with carbohydrates produced through photosynthesis, creating a mutually beneficial exchange. These associations are crucial for plant health and growth, as they enhance nutrient uptake and improve soil structure. Mycorrhizal fungi can also help plants resist diseases and adapt to environmental stress. This symbiotic relationship is found in many ecosystems and is vital for the success of various plant species, including trees and crops.