Key concepts
- Mycorrhizae are associations between fungi and roots.
- Partners exchange resources.
- The association varies by plant, fungus and environment.
The lesson
In a mycorrhizal association, a fungus interacts with plant roots. Fungal hyphae can access soil resources, while the plant supplies carbon compounds. Different groups form distinct structures at or within roots.
Benefits depend on the partners and conditions. A nearby mushroom does not by itself confirm a mycorrhizal association with a particular plant, demonstrate resource transfer, or establish an effect on crop production.
Further reading
A moment to apply it
Put it into practice
Compare ectomycorrhizal and arbuscular structures in the reading. State what evidence would be needed to identify an association at a field site.
Keep in mind
The ecological relationship is more specific than proximity between a mushroom and a plant.
Educational material. Check the linked reading and distinguish general principles from evidence about a particular specimen or field site. Lessons do not establish edibility or causal effects on livestock performance.