ArticleThe Plant cell2002
A mutation in the Arabidopsis KT2/KUP2 potassium transporter gene affects shoot cell expansion.
Article in The Plant cell, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.
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Who cites it
64 citing papers in PubMed, 221 citations in OpenAlex.
- Subcellular Potassium Ion-Mediated Structural Coordination Between Mesophyll Cells and Chloroplasts Determines COPlant, cell & environment · 2026Article
- Physiological, Chemical and Metabolite Profiling ofPlants (Basel, Switzerland) · 2025Article
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- Identification, classification, and stress-responsive regulation ofFrontiers in plant science · 2025Article
- Ion Changes and Signaling under Salt Stress in Wheat and Other Important Crops.Plants (Basel, Switzerland) · 2023Review
- Overexpression ofCurrent issues in molecular biology · 2023Article
- Genome-Wide Identification and Characterization of thePlants (Basel, Switzerland) · 2023Article
- Genome-wide characterization and expression analysis of the HAK gene family in response to abiotic stresses in Medicago.BMC genomics · 2022Article
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- Potassium transporter TRH1/KUP4 contributes to distinct auxin-mediated root system architecture responses.Plant physiology · 2022Article
- Dissection of canopy layer-specific genetic control of leaf angle in Sorghum bicolor by RNA sequencing.BMC genomics · 2022Article
- Genome-wide association study of traits in sacred lotus uncovers MITE-associated variants underlying stamen petaloid and petal number variations.Frontiers in plant science · 2022Article
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- Recent Advances in Genome-wide Analyses of Plant Potassium Transporter Families.Current genomics · 2021Review
- Targeted designing functional markers revealed the role of retrotransposon derived miRNAs as mobile epigenetic regulators in adaptation responses of pistachio.Scientific reports · 2021Article
- Nitrendipine-Treatment Increases Cork Spot Disorder Incidence in Pear 'Akituki' (Plants (Basel, Switzerland) · 2021Article
- Identification and characterization of HAK/KUP/KT potassium transporter gene family in barley and their expression under abiotic stress.BMC genomics · 2021Article
- Insights into the mechanisms of transport and regulation of the arabidopsis high-affinity K+ transporter HAK51.Plant physiology · 2021Article
- Genome-wide characterization and expression analysis of HAK K3 Biotech · 2021Article
4 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Potassium ions (K(+)) are the most abundant cations in plants and are necessary for cell growth. Arabidopsis shy3-1 mutant plants have a short hypocotyl, small leaves, and a short flowering stem, and these defects result from decreased cell expansion. The semidominant shy3-1 mutation changes an amino acid in KT2/KUP2, a K(+) transporter related to the Escherichia coli Kup protein. Second mutations in the KT2/KUP2/SHY3 gene, including presumed null mutations, suppress the shy3-1 phenotypes. Plants with these intragenic suppressor mutations appear similar to wild-type plants, suggesting that KT2/KUP2/SHY3 acts redundantly with other genes. Expression of the shy3-1 mutant version of KT2/KUP2/SHY3 in wild-type plants confers shy3-1-like phenotypes, indicating that shy3-1 probably either causes a gain of function or creates an interfering protein. The shy3-1 mutation does not eliminate the ability of the KT2/KUP2 cDNA to rescue the growth of a potassium transport-deficient E. coli mutant. A P(SHY3)::GUS fusion is expressed in growing portions of the plant. These results suggest that KT2/KUP2/SHY3 mediates K(+)-dependent cell expansion in growing tissues.
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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.