ArticleJournal of experimental botany2019
Increased biomass accumulation in maize grown in mixed nitrogen supply is mediated by auxin synthesis.
Article in Journal of experimental botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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29 citing papers in PubMed, 84 citations in OpenAlex.
- Nitrogen form substitution identifies nitrogen use efficiency management pathways in maize.Physiology and molecular biology of plants : an international journal of functional plant biology · 2026Article
- Nitrogen form modulates carbon and nitrogen metabolism and assimilates partitioning to shape maize ear development.Planta · 2025Article
- Synergistic Effects of Nitrogen Application Enhance Drought Resistance inPlants (Basel, Switzerland) · 2025Article
- Enhancing Crop Nitrogen Efficiency: The Role of Mixed Nitrate and Ammonium Supply in Plant Growth and Development.Biology · 2025Review
- Metabolomics Combined with Photosynthetic Analysis Reveals Potential Mechanisms of Phenolic Compound Accumulation inInternational journal of molecular sciences · 2025Article
- Improvement in genomic prediction of maize with prior gene ontology information depends on traits and environmental conditions.The plant genome · 2025Article
- Increasing the nitrate-to-ammonium ratio improved plant growth and nitrogen uptake in pineapple seedlings.Frontiers in plant science · 2025Article
- Plant growth and nitrate absorption and assimilation of two sweet potato cultivars with different N tolerances in response to nitrate supply.Scientific reports · 2024Article
- Study on peanut protein oxidation and metabolomics/proteomics analysis of peanut response under hypoxic/re-aeration storage.Food chemistry: X · 2024Article
- The activation of iron deficiency responses of grapevine rootstocks is dependent to the availability of the nitrogen forms.BMC plant biology · 2024Article
- Effects of nitrate- and ammonium- nitrogen on anatomical and physiological responses of Catalpa bungei under full and partial root-zone drought.BMC plant biology · 2024Article
- Auxin synthesis promotes N metabolism and optimizes root structure enhancing N acquirement in maize (Zea mays L.).Planta · 2024Article
- Article
- Dynamic roles of small RNAs and DNA methylation associated with heterosis in allotetraploid cotton (Gossypium hirsutum L.).BMC plant biology · 2023Article
- Plant nitrogen availability and crosstalk with phytohormones signallings and their biotechnology breeding application in crops.Plant biotechnology journal · 2023Review
- Nitrogen Fertilizer Type and Genotype as Drivers of P Acquisition and Rhizosphere Microbiota Assembly in Juvenile Maize Plants.Plants (Basel, Switzerland) · 2023Article
- An appropriate ammonium: nitrate ratio promotes the growth of centipedegrass: insight from physiological and micromorphological analyses.Frontiers in plant science · 2023Article
- Benefits of biological nitrification inhibition ofFrontiers in plant science · 2023Article
- Short-term transcriptomic analysis at organ scale reveals candidate genes involved in low N responses in NUE-contrasting tomato genotypes.Frontiers in plant science · 2023Article
- Metabolic mechanism of nitrogen modified atmosphere storage on delaying quality deterioration of rice grains.Food chemistry: X · 2022Article
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The use of mixed nitrate and ammonium as a nitrogen source can improve plant growth. Here, we used metabolomics and transcriptomics to study the underlying mechanisms. Maize plants were grown hydroponically in the presence of three forms of nitrogen (nitrate alone, 75%/25% nitrate/ammonium, and ammonium alone). Plants grown with mixed nitrogen had a higher photosynthetic rate than those supplied only with nitrate, and had the highest leaf area and shoot and root biomass among the three nitrogen treatments. In shoot and root, the concentration of nitrogenous compounds (ammonium, glutamine, and asparagine) and carbohydrates (sucrose, glucose, and fructose) in plants with a mixed nitrogen supply was higher than that with nitrate supply, but lower than that with ammonium supply. The activity of the related enzymes (glutamate synthase, asparagine synthase, phosphoenolpyruvate carboxylase, invertase, and ADP-glucose pyrophosphorylase) changed accordingly. Specifically, the mixed nitrogen source enhanced auxin synthesis via the shikimic acid pathway, as indicated by the higher levels of phosphoenolpyruvate and tryptophan compared with the other two treatments. The expression of corresponding genes involving auxin synthesis and response was up-regulated. Supply of only ammonium resulted in high levels of glutamine and asparagine, starch, and trehalose hexaphosphate. We conclude that, in addition to increased photosynthesis, mixed nitrogen supply enhances leaf growth via increasing auxin synthesis to build a large sink for carbon and nitrogen utilization, which, in turn, facilitates further carbon assimilation and nitrogen uptake.
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