ArticleThe Plant cell2024
SnRK1α1-mediated RBOH1 phosphorylation regulates reactive oxygen species to enhance tolerance to low nitrogen in tomato.
Article in The Plant cell, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- A cooperative regulatory module between TAGL2 and JMJC1 activates specific defense genes against root-knot nematodes in tomato.The New phytologist · 2026Article
- Genome-Wide Identification and Analysis of Respiratory Burst Oxidase Homolog (International journal of molecular sciences · 2026Article
- HHO5 balances the plant nitrogen diet.The Plant cell · 2026Article
- An Energy Signalling Pathway Regulates the Aerenchyma Formation in Roots Under Environmental Stresses-A Perspective.Plant, cell & environment · 2026Article
- A Fructan 6-Exohydrolase fromPlants (Basel, Switzerland) · 2026Article
- The SlDOF3.4-SlCDF4 module improves tomato growth under low-nitrogen conditions.Horticulture research · 2026Article
- Ustilago maydis disrupts carbohydrate signaling networks to induce hypertrophy in host cells.Nature communications · 2026Article
- The effects of nitrogen and phosphorus deficiency on the main physiology of Ilex chinensis and transcriptomic analysis.BMC plant biology · 2026Article
- Strigolactone, reactive oxygen species, abscisic acid, and miR399 pathway in tobacco host plant regulate growth of parasitizing broomrape Phelipanche aegyptiaca during nitrogen or phosphorous stress.BMC plant biology · 2026Article
- Inoculation of tomato with a plant growth-promoting rhizobacteria enhances basal and wound-induced ROS levels.Plant physiology · 2025Article
- You can have it all: How the interplay between SnRK1 and RBOH1 promotes nitrate uptake in tomato.The Plant cell · 2024Article
- Dual Phosphorylation of Thr175 and Ser176 Is Essential for SnRK1α1 Activation.Physiologia plantarumArticle
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Authors and funding
8 authors.
Funding
Abstract
Nitrogen is essential for plant growth and development. SNF1-related protein kinase 1 (SnRK1) is an evolutionarily conserved protein kinase pivotal for regulating plant responses to nutrient deficiency. Here, we discovered that the expression and activity of the SnRK1 α-catalytic subunit (SnRK1α1) increased in response to low-nitrogen stress. SnRK1α1 overexpression enhanced seedling tolerance, nitrate uptake capacity, apoplastic reactive oxygen species (ROS) accumulation, and NADPH oxidase activity in tomato (Solanum lycopersicum L.) under low-nitrogen stress compared to wild type plants, while snrk1α1 mutants exhibited the opposite phenotypes. Mutation of the NADPH oxidase gene Respiratory burst oxidase homolog 1 (RBOH1) suppressed numerous nitrate uptake and metabolism genes during low-nitrogen stress. rboh1 mutants displayed lower NADPH oxidase activity, apoplastic ROS production, and seedling tolerance to low nitrogen. Silencing RBOH1 expression also compromised SnRK1α1-mediated seedling tolerance to low-nitrogen stress. SnRK1α1 interacts with and activates RBOH1 through phosphorylation of three N-terminal serine residues, leading to increased apoplastic ROS production and enhanced tolerance to low nitrogen conditions. Furthermore, RBOH1-dependent ROS oxidatively modified the transcription factor TGA4 at residue Cys-334, which increased NRT1.1 and NRT2.1 expression under low-nitrogen stress. These findings reveal a SnRK1α1-mediated signaling pathway and highlight the essential role of RBOH1-dependent ROS production in enhancing plant tolerance to low nitrogen.
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