ArticleThe Plant cell2025
SALT OVERLY SENSITIVE2 and AMMONIUM TRANSPORTER1;1 contribute to plant salt tolerance by maintaining ammonium uptake.
Article in The Plant cell, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Article
- The MdERF1B-MdWRKY75-MdSOS3 Module Confers Salt Tolerance by Regulating Sodium-Potassium Homoeostasis in Apple.Plant, cell & environment · 2026Article
- The OsGSK1-OsBZR3-OsJAZ4 module integrates nitrate signaling with brassinosteroid and jasmonic acid crosstalk to drive cell wall remodeling for salt recovery in rice.Plant communications · 2026Article
- The Genome-Wide Identification and Expression Analysis of the AMT Gene Family in Foxtail Millet.Biology · 2026Article
- Genome-wide analysis of the SOS2 gene family in melon (Cucumis melo L.) and functional characterization of MELO3C010334 in response to salt stress.BMC plant biology · 2026Article
- Nitrogen use efficiency in crops under salt stress: from molecular networks to intelligent breeding.Frontiers in plant science · 2026Review
- The regulatory roles of flavonoids, melatonin, and glycine betaine in plant salt stress response.Frontiers in plant science · 2026Review
- Hormonal priming with indole-3-acetic acid modulates antioxidant defense, gene expression, and physiological responses under salinity inFrontiers in plant science · 2026Article
- Genome-Wide Identification of theGenes · 2025Article
- Alfalfa MsSOS2 confers salinity tolerance by promoting lateral root growth and regulating NaScientific reports · 2025Article
- Salt Tolerance in Soybean (Plants (Basel, Switzerland) · 2025Review
- Genome-Wide Identification and Salinity Response Analysis of the Germin-like Protein (Plants (Basel, Switzerland) · 2025Article
- Goldilocks and the SOS pathway: Finding "just right" for growth after salt stress.The Plant cell · 2025Article
- Optimizing nitrogen use efficiency in forest plantations: mechanistic insights fromForestry research · 2025Review
- Ion toxicity in waterlogged soils: mechanisms of root response and adaptive strategies.Frontiers in plant science · 2025Review
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Authors and funding
12 authors.
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Abstract
Soil salinity is a severe threat to agriculture and plant growth. Under high salinity conditions, ammonium (NH4+) is the predominant inorganic nitrogen source used by plants due to limited nitrification. However, how ammonium shapes the plant response to salt stress remains a mystery. Here, we demonstrate that the growth of Arabidopsis (Arabidopsis thaliana) seedlings is less sensitive to salt stress when provided with ammonium instead of nitrate (NO3-), a response that is mediated by ammonium transporters (AMTs). We further show that the kinase SALT OVERLY SENSITIVE2 (SOS2) physically interacts with and activates AMT1;1 by directly phosphorylating the nonconserved serine residue Ser-450 in the C-terminal region. In agreement with the involvement of SOS2, ammonium uptake was lower in sos2 mutants grown under salt stress relative to the wild type. Moreover, AMT-mediated ammonium uptake enhanced salt-induced SOS2 kinase activity. Together, our study demonstrates that SOS2 activates AMT1;1 to fine-tune and maintain ammonium uptake and optimize the plant salt stress response.
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