ArticlePlant physiology2001
Dominant negative guard cell K+ channel mutants reduce inward-rectifying K+ currents and light-induced stomatal opening in arabidopsis.
Article in Plant physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
90 citing papers in PubMed, 185 citations in OpenAlex.
- Synthetic ion channel inhibitors enhance plant drought tolerance.Nature communications · 2026Article
- Cyclic nucleotide-gated channels serve as core components for CaJournal of plant research · 2026Article
- Guard cells on the adaxial and abaxial leaf surfaces use different compositions of potassium ion channels to drive light-induced stomatal opening.Nature plants · 2025Article
- Phosphorylation of Arabidopsis NRT1.1 regulates plant stomatal aperture and drought resistance in low nitrate condition.BMC plant biology · 2025Article
- Potential mechanisms for the rapid post-drought reversal of ABA-induced stomatal closure by melatonin, 5-aminolevulinic acid, and brassinosteroids.Photosynthetica · 2025Review
- Metabolic modeling reveals distinct roles of sugars and carboxylic acids in stomatal opening as well as unexpected carbon fluxes.The Plant cell · 2024Article
- Hydrogen peroxide is required for light-induced stomatal opening across different plant species.Nature communications · 2024Article
- The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice.International journal of molecular sciences · 2023Review
- Identification ofLife (Basel, Switzerland) · 2023Article
- Multiple cyclic nucleotide-gated channels function as ABA-activated Ca2+ channels required for ABA-induced stomatal closure in Arabidopsis.The Plant cell · 2023Article
- Signaling Transduction of ABA, ROS, and CaInternational journal of molecular sciences · 2022Review
- The E3 Ligase GmPUB21 Negatively Regulates Drought and Salinity Stress Response in Soybean.International journal of molecular sciences · 2022Article
- Identification of stomatal-regulating molecules from de novo arylamine collection through aromatic C-H amination.Scientific reports · 2022Article
- Core Components of Abscisic Acid Signaling and Their Post-translational Modification.Frontiers in plant science · 2022Review
- Structural and Functional Insights into the Role of Guard Cell Ion Channels in Abiotic Stress-Induced Stomatal Closure.Plants (Basel, Switzerland) · 2021Review
- Recent Advances in Genome-wide Analyses of Plant Potassium Transporter Families.Current genomics · 2021Review
- Adjustment of KInternational journal of molecular sciences · 2021Review
- A role for calcium-dependent protein kinases in differential COThe New phytologist · 2021Article
- Potential Networks of Nitrogen-Phosphorus-Potassium Channels and Transporters in Arabidopsis Roots at a Single Cell Resolution.Frontiers in plant science · 2021Article
- Global identification and characterization of miRNA family members responsive to potassium deprivation in wheat (Triticum aestivum L.).Scientific reports · 2020Article
30 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 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Inward-rectifying potassium (K+(in)) channels in guard cells have been suggested to provide a pathway for K+ uptake into guard cells during stomatal opening. To test the proposed role of guard cell K+(in) channels in light-induced stomatal opening, transgenic Arabidopsis plants were generated that expressed dominant negative point mutations in the K+(in) channel subunit KAT1. Patch-clamp analyses with transgenic guard cells from independent lines showed that K+(in) current magnitudes were reduced by approximately 75% compared with vector-transformed controls at -180 mV, which resulted in reduction in light-induced stomatal opening by 38% to 45% compared with vector-transformed controls. Analyses of intracellular K+ content using both sodium hexanitrocobaltate (III) and elemental x-ray microanalyses showed that light-induced K+ uptake was also significantly reduced in guard cells of K+(in) channel depressor lines. These findings support the model that K+(in) channels contribute to K+ uptake during light-induced stomatal opening. Furthermore, transpirational water loss from leaves was reduced in the K+(in) channel depressor lines. Comparisons of guard cell K+(in) current magnitudes among four different transgenic lines with different K+(in) current magnitudes show the range of activities of K+(in) channels required for guard cell K+ uptake during light-induced stomatal opening.
Indexed as
Identifiers
11598222PMC125083W2108662839What OpenQuestion holds
Registered trials
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.