ArticleProceedings of the National Academy of Sciences of the United States of America1999
Auxin-induced K+ channel expression represents an essential step in coleoptile growth and gravitropism.
Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers.
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Who cites it
109 citing papers in PubMed, 304 citations in OpenAlex.
- EgKT2-1, an inwardly rectifying Shaker-type potassium channel in oil palm that correlates with oil yield.Plant cell reports · 2026Article
- Genome-Wide Identification and Expression Analysis of thePlants (Basel, Switzerland) · 2025Article
- The effect of HScientific reports · 2025Article
- Dressed Up to the Nines: The Interplay of Phytohormones Signaling and Redox Metabolism During Plant Response to Drought.Plants (Basel, Switzerland) · 2025Review
- The Complexity of the Influence of Growth Substances, Heavy Metals, and Their Combination on the Volume Dynamics of Vacuoles Isolated from Red Beet (International journal of molecular sciences · 2024Article
- Research Progress on Plant Shaker KPlants (Basel, Switzerland) · 2024Review
- Speedy stomata of a CPlant, cell & environment · 2024Article
- Identification of a novel and plant height-independent QTL for coleoptile length in barley and validation of its effect using near isogenic lines.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 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
- Overexpression ofCurrent issues in molecular biology · 2023Article
- Multifractal Analysis of the Influence of Indole-3-Acetic Acid on Fast-Activating Vacuolar (FV) Channels ofMembranes · 2023Article
- Structural basis for the activity regulation of a potassium channel AKT1 from Arabidopsis.Nature communications · 2022Article
- The effect of DC electric field on the elongation growth, proton extrusion and membrane potential of Zea mays L. coleoptile cells; a laboratory study.BMC plant biology · 2022Article
- Identification and Characterization of Shaker KFrontiers in plant science · 2022Article
- Recent Advances in Genome-wide Analyses of Plant Potassium Transporter Families.Current genomics · 2021Review
- Fusicoccin (FC)-Induced Rapid Growth, Proton Extrusion and Membrane Potential Changes in Maize (International journal of molecular sciences · 2021Article
- Some New Methodological and Conceptual Aspects of the "Acid Growth Theory" for the Auxin Action in Maize (International journal of molecular sciences · 2021Article
- Potassium Control of Plant Functions: Ecological and Agricultural Implications.Plants (Basel, Switzerland) · 2021Article
- Regulation of Sixth Seminal Root Formation by Jasmonate inPlants (Basel, Switzerland) · 2021Article
- ZMK1 Is Involved in KFrontiers in plant science · 2021Article
49 more citing papers are in PubMed but not listed here.
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Authors and funding
12 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Auxin-induced growth of coleoptiles depends on the presence of potassium and is suppressed by K+ channel blockers. To evaluate the role of K+ channels in auxin-mediated growth, we isolated and functionally expressed ZMK1 and ZMK2 (Zea mays K+ channel 1 and 2), two potassium channels from maize coleoptiles. In growth experiments, the time course of auxin-induced expression of ZMK1 coincided with the kinetics of coleoptile elongation. Upon gravistimulation of maize seedlings, ZMK1 expression followed the gravitropic-induced auxin redistribution. K+ channel expression increased even before a bending of the coleoptile was observed. The transcript level of ZMK2, expressed in vascular tissue, was not affected by auxin. In patch-clamp studies on coleoptile protoplasts, auxin increased K+ channel density while leaving channel properties unaffected. Thus, we conclude that coleoptile growth depends on the transcriptional up-regulation of ZMK1, an inwardly rectifying K+ channel expressed in the nonvascular tissue of this organ.
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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.