ArticleFrontiers in plant science2016
A Potential Role of Flag Leaf Potassium in Conferring Tolerance to Drought-Induced Leaf Senescence in Barley.
Article in Frontiers in plant science, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 45 citations in OpenAlex.
- Split Potassium Fertilization Modulates Endogenous Hormone Homeostasis to Optimize the Grain-Filling Process and Mitigate High-Temperature Damage in Rice.Plants (Basel, Switzerland) · 2026Article
- Validation of stay-green and stem reserve mobilization QTLs: physiological and gene expression approach.Frontiers in plant science · 2025Article
- New findings on the incidence and management of CNS adverse reactions in ALK-positive NSCLC with lorlatinib treatment.Discover oncology · 2024Article
- Multivariate analysis and genetic dissection of staygreen and stem reserve mobilisation under combined drought and heat stress in wheat (Frontiers in genetics · 2023Article
- Transcriptome profiling disclosed the effect of single and combined drought and heat stress on reprogramming of genes expression in barley flag leaf.Frontiers in plant science · 2022Article
- Molecular basis of nitrogen starvation-induced leaf senescence.Frontiers in plant science · 2022Review
- Hydrogen sulfide (HPlant cell reports · 2021Article
- Overexpression of MdATG8i improves water use efficiency in transgenic apple by modulating photosynthesis, osmotic balance, and autophagic activity under moderate water deficit.Horticulture research · 2021Article
- K Deprivation Modulates the Primary Metabolites and Increases Putrescine Concentration inFrontiers in plant science · 2021Article
- Potassium Application Boosts Photosynthesis and Sorbitol Biosynthesis and Accelerates Cold Acclimation of Common Plantain (Plants (Basel, Switzerland) · 2020Article
- The Ability to Regulate Transmembrane Potassium Transport in Root Is Critical for Drought Tolerance in Barley.International journal of molecular sciences · 2019Article
- Calcium Application Enhances Drought Stress Tolerance in Sugar Beet and Promotes Plant Biomass and Beetroot Sucrose Concentration.International journal of molecular sciences · 2019Article
- Root Engineering in Barley: Increasing Cytokinin Degradation Produces a Larger Root System, Mineral Enrichment in the Shoot and Improved Drought Tolerance.Plant physiology · 2018Article
- Regulatory Role of Silicon in Mediating Differential Stress Tolerance Responses in Two Contrasting Tomato Genotypes Under Osmotic Stress.Frontiers in plant science · 2018Article
- Induction of Barley Silicon TransporterFrontiers in plant science · 2017Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Terminal drought stress decreases crop yields by inducing abscisic acid (ABA) and premature leaf senescence. As potassium (K) is known to interfere with ABA homeostasis we addressed the question whether there is genetic variability regarding the role of K nutrition in ABA homeostasis and drought tolerance. To compare their response to drought stress, two barley lines contrasting in drought-induced leaf senescence were grown in a pot experiment under high and low K supply for the analysis of flag leaves from the same developmental stage. Relative to the drought-sensitive line LPR, the line HPR retained more K in its flag leaves under low K supply and showed delayed flag leaf senescence under terminal drought stress. High K retention was further associated with a higher leaf water status, a higher concentration of starch and other primary carbon metabolites. With regard to ABA homeostasis, HPR accumulated less ABA but higher levels of the ABA degradation products phaseic acid (PA) and dehydro-PA. Under K deficiency this went along with higher transcript levels of ABA8'-HYDROXYLASE, encoding a key enzyme in ABA degradation. The present study provides evidence for a positive impact of the K nutritional status on ABA homeostasis and carbohydrate metabolism under drought stress. We conclude that genotypes with a high K nutritional status in the flag leaf show superior drought tolerance by promoting ABA degradation but attenuating starch degradation which delays flag leaf senescence. Flag leaf K levels may thus represent a useful trait for the selection of drought-tolerant barley cultivars.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.