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Beneath the forest floor, N deposition is changing plant-fungal nutrient dynamics.
Activities like crop fertilization, and the combustion of fossil fuels is allowing massive amounts of nitrogen to be deposited to ecosystems around the world. A main response is the seemingly simple shift towards less functioning mycorrhizae. This actually has a pronounced impact on the entire ecosystem.
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Fungal endophyte Epichloë coenophiala.
Fungal endophytes are diverse organisms that fill diverse ecological roles. They are not just mycorrhizal species that enhance plant nutrient uptake, but also produce compounds that increase plant fitness. No wonder why mechanisms of vertical transmission evolved.
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Stained AMF structures. Procedures I carried out throughout my masters thesis.
New research shows that some plants can recognize if their neighbor is closely related. Because of kin recognition in young plants of common ragweed, closely related neighbors do better by investing more in mycorrhizae. Although mycorrhizae didn't nutritionally benefit these plants, their fungal mutualist offered another type of fitness enhancing reward.
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