Role of Arbuscular Mycorrhizal Fungi in the Nitrogen Uptake of Plants: Current Knowledge and Research Gaps

By H. Bücking, Arjun Kafle. 2015

255 citations recorded by the source corpus.

Arbuscular mycorrhizal (AM) fungi play an essential role for the nutrient uptake of the majority of land plants, including many important crop species. The extraradical mycelium of the fungus takes up nutrients from the soil, transfers these nutrients to the intraradical mycelium within the host root, and exchanges the nutrients against carbon from the host across a specialized plant-fungal interface. The contribution of the AM symbiosis to the phosphate nutrition has long been known, but whether AM fungi contribute similarly to the nitrogen nutrition of their host is still controversially discussed. However, there is a growing body of evidence that demonstrates that AM fungi can actively transfer nitrogen to their host, and that the host plant with its carbon supply stimulates this transport, and that the periarbuscular membrane of the host is able to facilitate the active uptake of nitrogen from the mycorrhizal interface. In this review, our current knowledge about nitrogen transport through the fungal hyphae and across the mycorrhizal interface is summarized, and we discuss the regulation of these pathways and major research gaps.

Subfields: Pharmacology, Plant Science

View Paper: https://www.semanticscholar.org/paper/e699a4c04b2e3be882062dbbc4f07b90239c6eef

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In Pharmacology

M. Ashraf

In Plant Science

Citations in the corpus

Role of Arbuscular Mycorrhizal Fungi in Plant Growth Regulation: Implications in Abiotic Stress Tolerance (2019, background): “As soil temperatures increase, plant community reactions may be dependent on AMF interactions for sustainable yield and production (Bunn et al., 2009).”
Impact of abiotic factors on development of the community of arbuscular mycorrhizal fungi in the soil: a Review (2018, background): “A decrease of soil pH in the rhizosphere of mycorrhizal plants can be associated with the fact that AMF hyphae prefer ammonium cations, which at the same time might be a non-specific mechanism of phosphorus mobilization (Bücking and Kafle, 2015).”