ArticleScientific reports2020
Transcriptional regulation of amino acid metabolism in response to nitrogen deficiency and nitrogen forms in tea plant root (Camellia sinensis L.).
Article in Scientific reports, 2020. 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, 97 citations in OpenAlex.
- The dual fate of L-theanine in tea: Metabolic regulation and processing transformations.Journal of advanced research · 2026Review
- Supplemental nitrogen induces robust physiological and molecular adaptations by enhancing carbon metabolism in maize.Protoplasma · 2026Article
- Belowground Interaction in Tea/Soybean Intercropping Enhances Tea Quality by Improving Soil Nutrient Dynamics.Plants (Basel, Switzerland) · 2025Article
- Histidine limitation alters plant development and influences the TOR network.Journal of experimental botany · 2025Article
- Nano-elicitation strategy to improve specialized metabolite pathways in plant cell suspension culture.Frontiers in plant science · 2025Article
- Root-specific theanine metabolism and regulation at the single-cell level in tea plants (eLife · 2024Article
- Comprehensive Analysis of the Yield and Leaf Quality of Fresh Tea (Foods (Basel, Switzerland) · 2024Article
- Changes in amino acids, catechins and alkaloids during the storage of oolong tea and their relationship with antibacterial effect.Scientific reports · 2024Article
- The adc1 knockout with proC overexpression in Synechocystis sp. PCC 6803 induces a diversion of acetyl-CoA to produce more polyhydroxybutyrate.Biotechnology for biofuels and bioproducts · 2024Article
- Article
- Root symbiotic fungi improve nitrogen transfer and morpho-physiological performance inFrontiers in plant science · 2024Article
- Arbuscular mycorrhizal fungi enhance nitrogen assimilation and drought adaptability in tea plants by promoting amino acid accumulation.Frontiers in plant science · 2024Article
- Comparative Amino Acid Profile and Antioxidant Activity in Sixteen Plant Extracts from Transylvania, Romania.Plants (Basel, Switzerland) · 2023Article
- Article
- Theanine, a tea-plant-specific non-proteinogenic amino acid, is involved in the regulation of lateral root development in response to nitrogen status.Horticulture research · 2023Article
- Ammonium-nitrate mixtures dominated by NHFrontiers in plant science · 2023Article
- Effect of Interactions between Phosphorus and Light Intensity on Metabolite Compositions in Tea Cultivar Longjing43.International journal of molecular sciences · 2022Article
- Potential 'accelerator' and 'brake' regulation of theanine biosynthesis in tea plant (Horticulture research · 2022Article
- Carbon and Nitrogen Metabolism Are Jointly Regulated During Shading in Roots and Leaves ofFrontiers in plant science · 2022Article
- Metabolome and RNA-seq Analysis of Responses to Nitrogen Deprivation and Resupply in Tea Plant (Frontiers in plant science · 2022Article
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Free amino acids, including theanine, glutamine and glutamate, contribute greatly to the pleasant taste and multiple health benefits of tea. Amino acids in tea plants are mainly synthesized in roots and transported to new shoots, which are significantly affected by nitrogen (N) level and forms. However, the regulatory amino acid metabolism genes have not been systemically identified in tea plants. Here, we investigated the dynamic changes of free amino acid contents in response to N deficiency and forms in tea plant roots, and systemically identified the genes associated amino acid contents in individual metabolism pathways. Our results showed that glutamate-derived amino acids are the most dynamic in response to various forms of N and N deficiency. We then performed transcriptomic analyses of roots treated with N deficiency and various forms of N, and differentially expressed amino acid metabolic genes in each pathway were identified. The analyses on expression patterns and transcriptional responses of metabolic genes to N treatments provided novel insights for the molecular basis of high accumulation of theanine in tea plant root. These analyses also identified potential regulatory genes in dynamic amino acid metabolism in tea plant root. Furthermore, our findings indicated that the dynamic expression levels of CsGDH, CsAlaDC, CsAspAT, CsSDH, CsPAL, CsSHMT were highly correlated with changes of amino acid contents in their corresponding pathways. Herein, this study provides comprehensive insights into transcriptional regulation of amino acid metabolism in response to nitrogen deficiency and nitrogen forms in tea plant root.
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