ArticleThe EMBO journal1995
Cloning and electrophysiological analysis of KST1, an inward rectifying K+ channel expressed in potato guard cells.
Article in The EMBO journal, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.
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Who cites it
66 citing papers in PubMed, 208 citations in OpenAlex.
- OsKAT1 is a short Shaker potassium channel involved in root-to-shoot potassium translocation and contributes to rice grain yield.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- A charged existence: A century of transmembrane ion transport in plants.Plant physiology · 2024Review
- Identification ofLife (Basel, Switzerland) · 2023Article
- Guard-cell-targeted overexpression of Arabidopsis Hexokinase 1 can improve water use efficiency in field-grown tobacco plants.Journal of experimental botany · 2022Article
- Recent Advances in Genome-wide Analyses of Plant Potassium Transporter Families.Current genomics · 2021Review
- Developing specific leaf promoters tools for genetic use in transgenic plants towards food security.Saudi journal of biological sciences · 2021Article
- Optogenetic control of the guard cell membrane potential and stomatal movement by the light-gated anion channelScience advances · 2021Article
- External Cd2+ and protons activate the hyperpolarization-gated K+ channel KAT1 at the voltage sensor.The Journal of general physiology · 2021Article
- The Venus flytrap trigger hair-specific potassium channel KDM1 can reestablish the K+ gradient required for hapto-electric signaling.PLoS biology · 2020Article
- Future-Proofing Potato for Drought and Heat Tolerance by Overexpression of Hexokinase and SP6A.Frontiers in plant science · 2020Article
- Identification of Shaker KPlanta · 2019Article
- A unified multi-kingdom Golden Gate cloning platform.Scientific reports · 2019Article
- Review
- Identification of Leaf Promoters for Use in Transgenic Wheat.Plants (Basel, Switzerland) · 2018Article
- A quantitative hypermorphiceLife · 2017Article
- The Membrane Transport System of the Guard Cell and Its Integration for Stomatal Dynamics.Plant physiology · 2017Review
- The Solanum tuberosum KST1 partial promoter as a tool for guard cell expression in multiple plant species.Journal of experimental botany · 2017Article
- Overexpression of the rice AKT1 potassium channel affects potassium nutrition and rice drought tolerance.Journal of experimental botany · 2016Article
- Insights into genomics of salt stress response in rice.Rice (New York, N.Y.) · 2013Article
- ABA signaling in stomatal guard cells: lessons from Commelina and Vicia.Journal of plant research · 2011Review
6 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Potassium uptake by guard cells represents part of the osmotic motor which drives stomatal opening. Patch-clamp measurements have identified inward rectifying K+ channels capable of mediating K+ uptake in guard cells and various other plant cell types. Here we report the molecular cloning and characterization of a voltage-dependent K+ channel (KST1) from potato (Solanum tuberosum L.) guard cells. In situ hybridization shows expression of kst1 in guard cells. Two-electrode voltage-clamp and patch-clamp studies of the gene product after cRNA injection into Xenopus oocytes identified KST1 as a slowly activating, voltage-dependent, inward rectifying K+ channel. The single channel current voltage curve was linear in the range -160 to +20 mV, with a deduced single channel conductance of 7 pS in symmetrical 100 mM K+. This channel type, modulated by pH changes within the physiological range, required ATP for activation. In line with the properties of a K(+)-selective channel, KST1 was permeable to K+, Rb+ and NH4+ and excluded Na+ and Li+. Cs+ at submillimolar concentrations blocked the channel in a voltage-dependent manner. Related studies on potato guard cell protoplasts confirmed the biophysical characteristics of the kst1 gene product (KST1) in the heterologous expression system. Therefore, KST1 represents a major K+ uptake channel in potato guard cells.
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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.