What is mycelium comprised of?

Mycelium is primarily comprised of aggregated hyphae, which are the thread-like structures that make up the body of a fungus. These hyphae grow and spread through the soil or other substrates, forming a network that facilitates nutrient absorption and contributes to the overall growth and health of the fungus. This network is crucial for the life cycle of fungi, serving as the vegetative part that can reproduce and interact with the environment, including other organisms.

The structure of mycelium allows fungi to decompose organic material and connect with plant roots, forming mutualistic relationships known as mycorrhizae, which further underscores the importance of aggregated hyphae in both ecology and the health of ecosystems. Understanding that mycelium is made up of these aggregates helps in comprehending the role fungi play in soil health and nutrient cycling.