ArticleJournal of experimental botany2016
Overexpression of the rice AKT1 potassium channel affects potassium nutrition and rice drought tolerance.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
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53 citing papers in PubMed, 160 citations in OpenAlex.
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- Transcriptome and WGCNA analyses reveal NtRAP2-7 activates NtACOH1 expression to enhance low potassium tolerance in tobacco.Functional & integrative genomics · 2026Article
- The Small Auxin Upregulated RNAPlants (Basel, Switzerland) · 2026Article
- Accurate detections of the heterozygous SNPs with rice genomic data and prediction of de novo spontaneous mutation rate.Plant methods · 2025Article
- Salinity Stress in Rice: Multilayered Approaches for Sustainable Tolerance.International journal of molecular sciences · 2025Review
- Deciphering salt tolerance mechanisms in synthetic hexaploid and bread wheat under humic acid application: physiological and genetic perspectives.Frontiers in plant science · 2025Article
- Identification and Characterization ofInternational journal of molecular sciences · 2024Article
- Identification of Shaker Potassium Channel Family Members and Functional Characterization ofInternational journal of molecular sciences · 2024Article
- The Promising B-Type Response RegulatorInternational journal of molecular sciences · 2024Article
- Transcriptome analysis and identification of the low potassium stress-responsive gene SiSnRK2.6 in foxtail millet (Setaria italica L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Review
- Comparative adaptability assessment of bread wheat and synthetic hexaploid genotypes under saline conditions using physiological, biochemical, and genetic indices.Frontiers in plant science · 2024Article
- The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice.International journal of molecular sciences · 2023Review
- Assessing Drought Tolerance in a Large Number of Upland Cotton Plants (Life (Basel, Switzerland) · 2023Article
- Membrane Proteins in Plant Salinity Stress Perception, Sensing, and Response.The Journal of membrane biology · 2023Review
- Proteomic Analysis Reveals a Critical Role of the Glycosyl Hydrolase 17 Protein inInternational journal of molecular sciences · 2023Article
- Drought stress in rice: morpho-physiological and molecular responses and marker-assisted breeding.Frontiers in plant science · 2023Review
- Unfolding molecular switches for salt stress resilience in soybean: recent advances and prospects for salt-tolerant smart plant production.Frontiers in plant science · 2023Review
- Metabolome and transcriptome profiles in quinoa seedlings in response to potassium supply.BMC plant biology · 2022Article
- Crop Root Responses to Drought Stress: Molecular Mechanisms, Nutrient Regulations, and Interactions with Microorganisms in the Rhizosphere.International journal of molecular sciences · 2022Review
- Overexpression of OsHAK5 potassium transporter enhances virus resistance in rice (Oryza sativa).Molecular plant pathology · 2022Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Potassium (K(+)) is the most important cationic nutrient for all living organisms and has roles in most aspects of plant physiology. To assess the impact of one of the main K(+) uptake components, the K(+) inward rectifying channel AKT1, we characterized both loss of function and overexpression of OsAKT1 in rice. In many conditions, AKT1 expression correlated with K(+) uptake and tissue K(+) levels. No salinity-related growth phenotype was observed for either loss or gain of function mutants. However, a correlation between AKT1 expression and root Na(+) when the external Na/K ratio was high suggests that there may be a role for AKT1 in Na(+) uptake in such conditions. In contrast to findings with Arabidopsis thaliana, we did not detect any change in growth of AKT1 loss of function mutants in the presence of NH4 (+) Nevertheless, NH4 (+)-dependent inhibition was detected during K(+) uptake assays in loss of function and wild type plants, depending on pre-growth conditions. The most prominent result of OsAKT1 overexpression was a reduction in sensitivity to osmotic/drought stress in transgenic plants: the data suggest that AKT1 overexpression improved rice osmotic and drought stress tolerance by increasing tissue levels of K(+), especially in the root.
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