ArticlePlant physiology2010
Regulation of the nitrogen transfer pathway in the arbuscular mycorrhizal symbiosis: gene characterization and the coordination of expression with nitrogen flux.
Article in Plant physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.
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Who cites it
49 citing papers in PubMed, 196 citations in OpenAlex.
- Review
- Arbuscular mycorrhizal fungi- linked microbial processes in soil nitrogen cycling.FEMS microbiology ecology · 2026Review
- Nitrogen starvation induces arbuscular mycorrhizal fungi to optimize resource allocation in sugarcane roots via suppression of basal metabolism.NPJ biofilms and microbiomes · 2026Article
- Sustainable Greenhouse Tomato Production: Benefits of Inoculation With Arbuscular Mycorrhizal Fungi Under Low Nitrogen and Phosphorus Conditions.Plant-environment interactions (Hoboken, N.J.) · 2025Article
- Arbuscular mycorrhizal fungi mitigated nitrogen leaching by enhancing soil nitrogen retention inApplied and environmental microbiology · 2025Article
- Review
- Cross-kingdom nutrient exchange in the plant-arbuscular mycorrhizal fungus-bacterium continuum.Nature reviews. Microbiology · 2024Review
- Deciphering mycobiota and its functional dynamics in root hairs of Rhododendron campanulatum D. Don through Next-gen sequencing.Scientific reports · 2024Article
- Molecular and Systems Biology Approaches for Harnessing the Symbiotic Interaction in Mycorrhizal Symbiosis for Grain and Oil Crop Cultivation.International journal of molecular sciences · 2024Review
- Article
- BnVP1, a novel vacuolar H+ pyrophosphatase gene from Boehmeria nivea confers cadmium tolerance in transgenic Arabidopsis.PloS one · 2024Article
- Interactive effects between the invasive weedFrontiers in microbiology · 2023Article
- The mycorrhiza-specific ammonium transporter ZmAMT3;1 mediates mycorrhiza-dependent nitrogen uptake in maize roots.The Plant cell · 2022Article
- The Roles of Phosphorus and Nitrogen Nutrient Transporters in the Arbuscular Mycorrhizal Symbiosis.International journal of molecular sciences · 2022Review
- The potential role of Mucoromycotina 'fine root endophytes' in plant nitrogen nutrition.Physiologia plantarum · 2022Article
- Mycorrhized Wheat Plants and Nitrogen Assimilation in Coexistence and Antagonism with Spontaneous Colonization of Pathogenic and Saprophytic Fungi in a Soil of Low Fertility.Plants (Basel, Switzerland) · 2022Article
- Current Studies of the Effects of Drought Stress on Root Exudates and Rhizosphere Microbiomes of Crop Plant Species.International journal of molecular sciences · 2022Review
- Plant-Mycorrhizal Fungi Interactions in Phytoremediation of Geogenic Contaminated Soils.Frontiers in microbiology · 2022Review
- Genome-Wide Analysis of Nutrient Signaling Pathways Conserved in Arbuscular Mycorrhizal Fungi.Microorganisms · 2021Article
- Mycorrhizal fungi control phosphorus value in trade symbiosis with host roots when exposed to abrupt 'crashes' and 'booms' of resource availability.The New phytologist · 2021Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The arbuscular mycorrhiza (AM) brings together the roots of over 80% of land plant species and fungi of the phylum Glomeromycota and greatly benefits plants through improved uptake of mineral nutrients. AM fungi can take up both nitrate and ammonium from the soil and transfer nitrogen (N) to host roots in nutritionally substantial quantities. The current model of N handling in the AM symbiosis includes the synthesis of arginine in the extraradical mycelium and the transfer of arginine to the intraradical mycelium, where it is broken down to release N for transfer to the host plant. To understand the mechanisms and regulation of N transfer from the fungus to the plant, 11 fungal genes putatively involved in the pathway were identified from Glomus intraradices, and for six of them the full-length coding sequence was functionally characterized by yeast complementation. Two glutamine synthetase isoforms were found to have different substrate affinities and expression patterns, suggesting different roles in N assimilation. The spatial and temporal expression of plant and fungal N metabolism genes were followed after nitrate was added to the extraradical mycelium under N-limited growth conditions using hairy root cultures. In parallel experiments with (15)N, the levels and labeling of free amino acids were measured to follow transport and metabolism. The gene expression pattern and profiling of metabolites involved in the N pathway support the idea that the rapid uptake, translocation, and transfer of N by the fungus successively trigger metabolic gene expression responses in the extraradical mycelium, intraradical mycelium, and host plant.
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