Arbuscular mycorrhizal fungi reduce nitrous oxide emissions from N₂ O hotspots.

ABSTRACT: Nitrous oxide (N₂ O) is a potent, globally important, greenhouse gas, predominantly released from agricultural soils during nitrogen (N) cycling. Arbuscular mycorrhizal fungi (AMF) form a mutualistic symbiosis with two-thirds of land plants, providing phosphorus and/or N in exchange for carbon. As AMF acquire N, it was hypothesized that AMF hyphae may reduce N₂ O production. AMF hyphae were either allowed (AMF) or prevented (nonAMF) access to a compartment containing an organic matter and soil patch in two independent microcosm experiments. Compartment and patch N₂ O production was measured both before and after addition of ammonium and nitrate. In both experiments, N₂ O production decreased when AMF hyphae were present before inorganic N additio

SUBMITTER: Storer K 

PROVIDER: S-EPMC6282961 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature