Multiple choice

Which among the following does not characterises ectomycorrhiza?

  1. Ectomycorrhizas forms between fungi and the roots of around 5% of plant species.

  2. Ectomycorrhizal fungi do not penetrate their host’s cell walls.

  3. Many EcM fungi have fruiting bodies.

  4. The hyphae extending outward into the soil from one ectomycorrhiza can infect other nearby plants.

  5. The extramatrical mycelia of ectomycorrhizas acts as transport structures.
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A Correct answer
Explanation

Ectomycorrhiza forms between fungi and the roots of around 2% of plant species. These tend to be composed of woody plants, including species from the birch, dipterocarp, myrtle, beech, willow, pine and rose families. Most plants form with endomycorrhizae.

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