ArticlePlant physiology2007
Reciprocal leaf and root expression of AtAmt1.1 and root architectural changes in response to nitrogen starvation.
Article in Plant physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 56 citations in OpenAlex.
- Evaluating LED parameters in a growth chamber to maintain potato yield and enhance minitubers production in greenhouse with molecular insights.Scientific reports · 2026Article
- Integrated proteomic analysis reveals adaptation mechanisms of paper mulberry seedling leaves to nitrogen stress.BMC plant biology · 2026Article
- SALT OVERLY SENSITIVE2 and AMMONIUM TRANSPORTER1;1 contribute to plant salt tolerance by maintaining ammonium uptake.The Plant cell · 2025Article
- Metabolome profiling and transcriptome analysis unveiling the crucial role of magnesium transport system for magnesium homeostasis in tea plants.Horticulture research · 2024Article
- Ectopic Expression of SugarcaneInternational journal of molecular sciences · 2023Article
- The Relationship between Ectomycorrhizal Fungi, Nitrogen Deposition, and Pinus massoniana Seedling Nitrogen Transporter Gene Expression and Nitrogen Uptake Kinetics.Journal of fungi (Basel, Switzerland) · 2022Article
- Article
- Differences and related physiological mechanisms in effects of ammonium on the invasive plantFrontiers in plant science · 2022Article
- Differential Responses of Wheat (Frontiers in plant science · 2022Article
- A novel insight into nitrogen and auxin signaling in lateral root formation in tea plant [Camellia sinensis (L.) O. Kuntze].BMC plant biology · 2020Article
- Signalling Overlaps between Nitrate and Auxin in Regulation of The Root System Architecture: Insights from theInternational journal of molecular sciences · 2020Review
- Transcriptomic analysis reveals adaptive strategies to chronic low nitrogen in Tibetan wild barley.BMC plant biology · 2019Article
- CC-type glutaredoxins mediate plant response and signaling under nitrate starvation in Arabidopsis.BMC plant biology · 2018Article
- TaNBP1, a guanine nucleotide-binding subunit gene of wheat, is essential in the regulation of N starvation adaptation via modulating N acquisition and ROS homeostasis.BMC plant biology · 2018Article
- Foxtail Millet [Frontiers in plant science · 2018Article
- Co-infection of Sweet Orange with Severe and Mild Strains ofFrontiers in plant science · 2017Article
- The chimeric repressor for the GATA4 transcription factor improves tolerance to nitrogen deficiency inPlant biotechnology (Tokyo, Japan) · 2017Article
- Overexpressing of OsAMT1-3, a High Affinity Ammonium Transporter Gene, Modifies Rice Growth and Carbon-Nitrogen Metabolic Status.International journal of molecular sciences · 2015Article
- Transcriptome analysis of nitrogen-starvation-responsive genes in rice.BMC plant biology · 2015Article
- MADS-box transcription factor AGL21 regulates lateral root development and responds to multiple external and physiological signals.Molecular plant · 2014Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nitrogen is an essential macronutrient for plant growth and survival. Here, the temporal and spatial sensing of nitrogen starvation is analyzed in Arabidopsis (Arabidopsis thaliana). The promoter for the high-affinity ammonium transporter, AtAmt1.1, is shown to be a valid indicator for nitrogen status in leaves and roots. An AtAmt1.1-Gal4 transgene using three 5x upstream activating sequence-driven reporters (luciferase, green fluorescent protein, and beta-glucuronidase) facilitated in vivo profiling at the whole-plant and cellular levels. The effects of nitrogen supply, light duration, light intensity, and carbon on the expression of the AtAmt1.1 gene in the roots and aerial tissues are reported. Under nitrogen starvation, high expression is observed in the roots and, under nitrogen-sufficient conditions, high expression is observed in the leaves. This reciprocal regulation of AtAmt1.1 was confirmed by quantitative reverse transcription-polymerase chain reaction, which was also used to quantitate expression of the five other Amt genes in Arabidopsis. Although some of these show tissue specificity (roots or leaves), none exhibit reciprocal regulation like the AtAmt1.1-encoded high-affinity transporter. This robust reciprocal expression suggests that Arabidopsis undergoes rapid resource reallocation in plants grown under different nitrogen supply regimens. Ultimately, nitrogen starvation-mediated reallocation results in root architectural restructuring. We describe the precise timing and cellular aspects of this nitrogen limitation response.
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