ArticlePlant physiology2009
Multilevel analysis of primary metabolism provides new insights into the role of potassium nutrition for glycolysis and nitrogen assimilation in Arabidopsis roots.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.
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Who cites it
78 citing papers in PubMed, 347 citations in OpenAlex.
- Physiological and Proteomic Analyses Reveal the Adaptive Mechanisms of Maize Genotypes Under Potassium Deficiency.International journal of molecular sciences · 2026Article
- Potassium Deficiency and Hormone Signalling in Plants.Plant, cell & environment · 2026Review
- No-tillage with straw mulching enhances grain yield and water use efficiency of wheat by enhancing sugar metabolism in flag leaves and grains in rainfed Loess Plateau, China.Frontiers in plant science · 2026Article
- Natural variation in potassium deficiency responses among Arabidopsis thaliana accessions.Plant & cell physiology · 2025Article
- Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits.International journal of molecular sciences · 2024Article
- Fulvic acid alleviates cadmium-induced root growth inhibition by regulating antioxidant enzyme activity and carbon-nitrogen metabolism in apple seedlings.Frontiers in plant science · 2024Article
- Identification of Key Genes Induced by Different Potassium Levels Provides Insight into the Formation of Fruit Quality in Grapes.International journal of molecular sciences · 2023Article
- Integrated transcriptomic and metabolomic analyses reveal key metabolic pathways in response to potassium deficiency in coconut (Frontiers in plant science · 2023Article
- Evaluating combined effects of pesticide and crop nutrition (with N, P, K and Si) on weevil damage in East African Highland Bananas.PloS one · 2023Article
- Transcriptional and metabolic responses of apple to different potassium environments.Frontiers in plant science · 2023Article
- Metabolome and transcriptome profiles in quinoa seedlings in response to potassium supply.BMC plant biology · 2022Article
- Proteomic Analysis of Roots Response to Potassium Deficiency and the Effect of TaHAK1-4A on KInternational journal of molecular sciences · 2022Article
- A Model Nutrition Control System in Potato Tissue Culture and Its Influence on Plant Elemental Composition.Plants (Basel, Switzerland) · 2022Article
- Transcriptome analysis of sweet potato responses to potassium deficiency.BMC genomics · 2022Article
- Integration of rhythmic metabolome and transcriptome provides insights into the transmission of rhythmic fluctuations and temporal diversity of metabolism in rice.Science China. Life sciences · 2022Article
- Dissection of Crop Metabolome Responses to Nitrogen, Phosphorus, Potassium, and Other Nutrient Deficiencies.International journal of molecular sciences · 2022Review
- Appropriate and Constant Potassium Supply Promotes the Growth of M9T337 Apple Rootstocks by Regulating Endogenous Hormones and Carbon and Nitrogen Metabolism.Frontiers in plant science · 2022Article
- Potassium deficiency causes more nitrate nitrogen to be stored in leaves for low-K sensitive sweet potato genotypes.Frontiers in plant science · 2022Article
- Morphophysiological and transcriptome analysis reveal that reprogramming of metabolism, phytohormones and root development pathways governs the potassium (KFrontiers in plant science · 2022Article
- Mechanism of cotton resistance to abiotic stress, and recent research advances in the osmoregulation related genes.Frontiers in plant science · 2022Review
18 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
Abstract
Potassium (K) is required in large quantities by growing crops, but faced with high fertilizer prices, farmers often neglect K application in favor of nitrogen and phosphorus. As a result, large areas of farmland are now depleted of K. K deficiency affects the metabolite content of crops with negative consequences for nutritional quality, mechanical stability, and pathogen/pest resistance. Known functions of K in solute transport, protein synthesis, and enzyme activation point to a close relationship between K and metabolism, but it is unclear which of these are the most critical ones and should be targeted in biotechnological efforts to improve K usage efficiency. To identify metabolic targets and signaling components of K stress, we adopted a multilevel approach combining transcript profiles with enzyme activities and metabolite profiles of Arabidopsis (Arabidopsis thaliana) plants subjected to low K and K resupply. Roots and shoots were analyzed separately. Our results show that regulation of enzymes at the level of transcripts and proteins is likely to play an important role in plant adaptation to K deficiency by (1) maintaining carbon flux into amino acids and proteins, (2) decreasing negative metabolic charge, and (3) increasing the nitrogen-carbon ratio in amino acids. However, changes in transcripts and enzyme activities do not explain the strong and reversible depletion of pyruvate and accumulation of sugars observed in the roots of low-K plants. We propose that the primary cause of metabolic disorders in low-K plants resides in the direct inhibition of pyruvate kinase activity by low cytoplasmic K in root cells.
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