ArticlePlant physiology2022
The nitrate transporter OsNPF7.9 mediates nitrate allocation and the divergent nitrate use efficiency between indica and japonica rice.
Article in Plant physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 27 citations in OpenAlex.
- Identification of Gene Regulatory Network for Nitrogen-Promoted Tiller Regrowth in Perennial Rice.Rice (New York, N.Y.) · 2026Article
- Comprehensive genome-wide identification of the NPF gene family and functional characterization of GmNPF6.8 regulating root development in soybean.BMC plant biology · 2026Article
- Perturbation of Anion/Cation Transport Leads to Apical Panicle Abortion in Rice by Disrupting CaPlant biotechnology journal · 2026Article
- Functional characterization of NRT1/PTR FAMILY transporters: looking for a needle in a haystack.The New phytologist · 2026Review
- Navigating the genetic basis of cadmium accumulation: a comprehensive analysis of low-cadmium accumulation rice.Molecular breeding : new strategies in plant improvement · 2025Article
- Chromatin accessibility dynamics and transcriptional regulatory networks underlying the primary nitrogen response in rice roots.Plant communications · 2025Article
- Integrative physiological and transcriptome analysis unravels the mechanism of low nitrogen use efficiency in burley tobacco.Plant direct · 2024Article
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- Genome-Wide Urea Response in Rice Genotypes Contrasting for Nitrogen Use Efficiency.International journal of molecular sciences · 2023Article
- Unlocking the potentials of nitrate transporters at improving plant nitrogen use efficiency.Frontiers in plant science · 2023Review
- Sustaining nitrogen dynamics: A critical aspect for improving salt tolerance in plants.Frontiers in plant science · 2023Review
- Overexpression of Nitrate Transporter 1/Peptide GeneLife (Basel, Switzerland) · 2022Article
- Identification and Expression Analysis of theInternational journal of molecular sciences · 2022Article
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8 authors at 2 institutions in 1 country.
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Abstract
Nitrate allocation in Arabidopsis (Arabidopsis thaliana) represents an important mechanism for mediating plant environmental adaptation. However, whether this mechanism occurs or has any physiological/agronomic importance in the ammoniphilic plant rice (Oriza sativa L.) remains unknown. Here, we address this question through functional characterization of the Nitrate transporter 1/Peptide transporter Family (NPF) transporter gene OsNPF7.9. Ectopic expression of OsNPF7.9 in Xenopus oocytes revealed that the gene encodes a low-affinity nitrate transporter. Histochemical and in-situ hybridization assays showed that OsNPF7.9 expresses preferentially in xylem parenchyma cells of vasculature tissues. Transient expression assays indicated that OsNPF7.9 localizes to the plasma membrane. Nitrate allocation from roots to shoots was essentially decreased in osnpf7.9 mutants. Biomass, grain yield, and nitrogen use efficiency (NUE) decreased in the mutant dependent on nitrate availability. Further analysis demonstrated that nitrate allocation mediated by OsNPF7.9 is essential for balancing rice growth and stress tolerance. Moreover, our research identified an indica-japonica divergent single-nucleotide polymorphism occurring in the coding region of OsNPF7.9, which correlates with enhanced nitrate allocation to shoots of indica rice, revealing that divergent nitrate allocation might represent an important component contributing to the divergent NUE between indica and japonica subspecies and was likely selected as a favorable trait during rice breeding.
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