The arbuscular mycorrhizal symbiosis links N mineralization to plant demand

  title={The arbuscular mycorrhizal symbiosis links N mineralization to plant demand},
  author={A. Atul-Nayyar and Chantal Hamel and Kelly Hanson and James J. Germida},
Arbuscular mycorrhizal (AM) fungi facilitate inorganic N (NH4 + or NO3 −) uptake by plants, but their role in N mobilization from organic sources is unclear. We hypothesized that arbuscular mycorrhizae enhance the ability of a plant to use organic residues (ORs) as a source of N. This was tested under controlled glasshouse conditions by burying a patch of OR in soil separated by 20-μm nylon mesh so that only fungal hyphae can pass through it. The fate of the N contained in the OR patch, as… CONTINUE READING


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Arbuscular mycorrhizal fungi and nitrogen uptake

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