Ecto-mychorrhizal fungi Help feed and protect Oaks and Conifers. Endo-mychorrhizal fungi forms a symbiosis with soft rooted plants such as Tomatoes, peppers, Rye grass, wheat, and Corn. It not only breaks down things in the soil the plants can't eat. It brings it back to the plant, and exchanges the plant food for exudates {sugars} secreted from the roots. It also forms little nooses on the roots that grab and strangle root sucking nematodes, or other root pests. Mycorrhizal fungi is credited with creating conditions that allowed plants to start going on dry land. It has helped keep our above water world alive since the beginning. It is most certainly not a useless soul sucking, money grubbing, dishonest, fat, unless, pieces of shit, Like Micheal Moore.