The Role of Fungi in Ecosystems Fungi play crucial roles in ecosystems, contributing to various ecological processes and functioning as key players in nutrient cycling, decomposition, symbiotic relationships, and biodiversity. Here's a closer look at the roles of fungi in ecosystems: How mushrooms aid in decomposition: Fungi are primary decomposers, breaking down dead organic matter such as fallen leaves, wood, and animal remains. They secrete enzymes that break down complex organic molecules into simpler compounds, which are then recycled back into the soil as nutrients. This process, known as decomposition, is essential for nutrient cycling and the renewal of soil fertility. Mycorrhizal relationships with plants: Many fungi form symbiotic relationships with plants through mycorrhizae, specialized structures that colonize the roots of plants. Mycorrhizal fungi help plants absorb water and nutrients from the soil, while the plants provide carbohydrates to the fungi through photosyn