White rot fungi are a group of fungi known for their ability to decompose lignin, a complex organic polymer found in the cell walls of plants. This unique capability allows them to break down wood and other plant materials, making them essential for nutrient cycling in ecosystems. They play a crucial role in forest health by recycling nutrients back into the soil. These fungi typically appear white or light-colored due to their production of enzymes that degrade lignin and cellulose. Common examples include Trametes versicolor and Ganoderma applanatum. Their activity not only aids in decomposition but also contributes to the formation of humus, enriching soil quality.