The underground plant ecosystem is more complex than you think. It acts as a kind of huge information data center that handles tons of data and transfers it from one plant to another. However, the roots don’t play a major part in this information exchange. The main components are the vast array of fungithat are present underground. While mushrooms might be the most famous type of fungus, most of their bodies are made up of a massof thin threads, known as mycelium. Research has shown that these threads act like underground Internet fibers, linking the roots of different plants.