What is the Difference Between Endo and Ecto Mycorrhizae?

Endomycorrhizae have an exchange mechanism on the inside of the root (and the hyphae extend outside the root).  Endomycorrhizal fungi form mostly with green leafy plants and most commercially produced plants.  Examples: Most Vegetables, Grasses, Flowers, Shrubs, Fruit Trees, and Ornamentals.

Ectomycorrhizae live only outside of the root.  Ectomycorrhizal fungi form mainly with Conifers and Oaks.  They are required only for a small percentage of woody type plants/trees.

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