ArticlePlanta2009
Ammonium transport and CitAMT1 expression are regulated by N in Citrus plants.
Article in Planta, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 37 citations in OpenAlex.
- Replanting alters nitrogen uptake and the expression level of ammonium transporter genes in grapevine.BMC plant biology · 2025Article
- Genome-Wide Identification and Characterization of Ammonium Transporter (AMT) Genes in Rapeseed (Genes · 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
- Genome-Wide Identification and Expression Analysis ofInternational journal of molecular sciences · 2022Article
- Regulation of Ammonium Cellular Levels is An Important Adaptive Trait for the Euhalophytic Behavior of Salicornia europaea.Plants (Basel, Switzerland) · 2020Article
- Cloning and Functional Determination of Ammonium Transporter PpeAMT3;4 in Peach.BioMed research international · 2020Article
- Ammonium Transporter (Frontiers in plant science · 2019Article
- Identification and characterization of two ammonium transporter genes in flowering Chinese cabbage (Plant biotechnology (Tokyo, Japan) · 2018Article
- The AMT1 family genes from Malus robusta display differential transcription features and ammonium transport abilities.Molecular biology reports · 2017Article
- Genome-wide identification, classification and transcriptional analysis of nitrate and ammonium transporters in Coffea.Genetics and molecular biology · 2017Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Citrus seedlings (Citrus sinensis L. Osbeck x Poncirus trifoliata Blanco) were used to describe the effects of different N treatments on the NH4+ influx mediated by high- and low-affinity transport systems (HATS and LATS, respectively) and CitAMT1 gene expression. Results show that Citrus plants favor NH4+ over NO3- influx mediated by HATS and LATS when both N sources are present in the nutrient solution and Citrus plants display a much higher capacity to take up NH4+ than NO3-. Furthermore, NH4+ exerts a regulatory effect on NH4+ HATS activity and CitAMT1 expression, both are down-regulated by high N status of the plant, but specifically stimulated by NH4+ and the balance between these two opposite effects depends on the prior nutrition regime of the plant. On the other hand, supply of NO3- inhibits CitAMT1 expression but doesn't affect NH4+ HATS activity on the roots. To explain this discrepancy, it is possible that other CitAMT1 transporters, up-regulated by N limitation, but not repressed by NO3- could be involved in the stimulation of NH4+ HATS activity under pure NO3- nutrition or CitAMT1 transporter could be regulated at the post-transcriptional level.
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