What is the association called in which fungal hyphae penetrate the outer cells of a plant root, forming coils, swellings and tiny branches, and also extend into the surrounding soil?
Correct answer B. Endomycorrhizae
Explanation
In endomycorrhizae the fungus enters the root cortex cells, forming arbuscules and vesicles, whereas ectomycorrhizae form a sheath around the root without penetrating cells.
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