ArticleThe Plant cell2003
The nitrate transporter AtNRT1.1 (CHL1) functions in stomatal opening and contributes to drought susceptibility in Arabidopsis.
Article in The Plant cell, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 122 papers, 2 of them syntheses that pooled it.
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Who cites it
122 citing papers in PubMed, 2 syntheses or guidelines pooled it, 322 citations in OpenAlex.
- A balancing act: how plants integrate nitrogen and water signals.Journal of experimental botany · 2020Pooled it
- Primary nitrate responses mediated by calcium signalling and diverse protein phosphorylation.Journal of experimental botany · 2020Pooled it
- Beyond membrane transport: Transporters as dynamic signal integrators for plant signaling and adaptation.Plant communications · 2026Review
- Article
- The primary nitrate response TGA1 and TGA4 transcription factors are negative regulators of sulfate uptake and metabolism.Plant physiology · 2026Article
- Blue light-induced stomatal opening is associated with species-specific changes in primary metabolism but not with starch breakdown in guard cells.The New phytologist · 2025Article
- Multi-physics modeling for ion homeostasis in multi-compartment plant cells using an energy function.PLoS computational biology · 2025Article
- Genome-Wide Identification of theInternational journal of molecular sciences · 2025Article
- Guard cell-specific glycine decarboxylase manipulation affects Arabidopsis photosynthesis, growth and stomatal behavior.The New phytologist · 2025Article
- Phosphorylation of Arabidopsis NRT1.1 regulates plant stomatal aperture and drought resistance in low nitrate condition.BMC plant biology · 2025Article
- Potassium extrusion by plant cells: evolution from an emergency valve to a driver of long-distance transport.The New phytologist · 2025Review
- Functional crosstalk between nitrate and ammonium transporters in N acquisition and pH homeostasis.Frontiers in plant science · 2025Review
- Regulatory network of ammonium and nitrate uptake and utilization in rice.Frontiers in plant science · 2025Review
- Alleviation of drought stress in tomato by foliar application of seafood waste extract.Scientific reports · 2024Article
- Functional and Molecular Characterization of Plant Nitrate Transporters Belonging to NPF (NRT1/PTR) 6 Subfamily.International journal of molecular sciences · 2024Review
- The root hairless mutant buzz in Brachypodium distachyon shows increased nitrate uptake and signaling but does not affect overall nitrogen use efficiency.The Plant journal : for cell and molecular biology · 2024Article
- A missense mutation in the barley Xan-h gene encoding the Mg-chelatase subunit I leads to a viable pale green line with reduced daily transpiration rate.Plant cell reports · 2024Article
- Natural variation in response to combined water and nitrogen deficiencies in Arabidopsis.The Plant cell · 2024Article
- Genome-Wide Identification and Expression Analysis of Nitrate Transporter (NRT) Gene Family inGenes · 2024Article
- Variation of mesophyll conductance mediated by nitrogen form is related to changes in cell wall property and chloroplast number.Horticulture research · 2024Article
62 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The movement of guard cells in stomatal complexes controls water loss and CO(2) uptake in plants. Examination of the dual-affinity nitrate transporter gene AtNRT1.1 (CHL1) revealed that it is expressed and functions in Arabidopsis guard cells. CHL1 promoter-beta-glucuronidase and CHL1 promoter-green fluorescent protein constructs showed strong expression in guard cells, and immunolocalization experiments with anti-CHL1 antibody confirmed these results. To assess CHL1 function, chl1 mutant plants grown in the presence of nitrate were examined. Compared with wild-type plants, chl1 mutants had reduced stomatal opening and reduced transpiration rates in the light or when deprived of CO(2) in the dark. These effects result in enhanced drought tolerance in chl1 mutants. At the cellular level, chl1 mutants showed reduced nitrate accumulation in guard cells during stomatal opening and failed to show nitrate-induced depolarization of guard cells. In wild-type guard cells, nitrate induced depolarization, and nitrate concentrations increased threefold during stomatal opening. These results identify an anion transporter that functions in stomatal opening and demonstrate that CHL1 supports stomatal function in the presence of nitrate.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.