ArticlePlants (Basel, Switzerland)2025
Mixed Ammonium-Nitrate Nutrition Regulates Enzymes, Gene Expression, and Metabolic Pathways to Improve Nitrogen Uptake, Partitioning, and Utilization Efficiency in Rice.
Article in Plants (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Sulfur improvements in growth, nutrient use efficiency, and photosynthesis depend on ammonium-nitrate nutrition inFrontiers in plant science · 2026Article
- Sustainable Approaches of Plant Nutrient and Environment Management to Plant Production.Plants (Basel, Switzerland) · 2025Article
- Comparative Physiological and Transcriptomic Characterisation of Two Japonica Rice Cultivars Under Low Nitrogen Stress.Plants (Basel, Switzerland) · 2025Article
- Nutrient Removal and Oxidative Response of Barley to Eutrophic Stress.Plants (Basel, Switzerland) · 2025Article
- Synergistic Effects of Nitrogen Application Enhance Drought Resistance inPlants (Basel, Switzerland) · 2025Article
- Effect of Nitrogen and Phosphorus Fertilizers on Dry Matter Accumulation and Translocation of Two Amylose ContentPlants (Basel, Switzerland) · 2025Article
- Unveiling nitrogen preferences inFrontiers in plant science · 2025Article
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7 authors.
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Abstract
Ammonium and nitrate nitrogen are the two main forms of inorganic nitrogen (N) available to crops. However, it is not clear how mixtures of ammonium and nitrate N affect N uptake and partitioning in major rice cultivars in southern China. This study investigated the effects of different ammonium nitrogen and nitrate nitrogen mixture treatments (100:0, 75:25, 50:50, 25:75, and 0:100) on the growth, photosynthetic characteristics, nitrogen uptake, gene expression, and yield of different rice cultivars (Mei Xiang Zhan NO. 2: MXZ2; Nan Jing Xiang Zhan: NJXZ). Rice root biomass, tiller number, and yield were increased by 69.5%, 42.5%, and 46.8%, respectively, in the 75:25 ammonium-nitrate mixed treatment compared to the 100:0 ammonium-nitrate mixed treatment. The nitrogen content in rice roots, stems, leaves, and grains increased by 69.5%, 64.0%, 65.5%, and 17.5%, respectively. In addition, compared with MXZ2, NJXZ had a greater proportion of N allocated to leaves and grains. Analysis of root enzyme activities revealed that the 75:25 ammonium-nitrate mixed nutrient treatment increased rice root glutamine synthetase activity by an average of 35.0% and glutamate synthetase activity by an average of 52.0%. Transcriptome analysis revealed that the 75:25 mixed ammonium-nitrate nutrient treatment upregulated the expression of genes related to the nitrogen metabolism transporter pathway. Weighted correlation network analysis revealed that some differentially expressed genes (
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