ArticleThe Plant cell2013
Osmotic stress responses and plant growth controlled by potassium transporters in Arabidopsis.
Article in The Plant cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 143 papers, 1 of them a synthesis that pooled it.
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Who cites it
143 citing papers in PubMed, 1 synthesis or guideline pooled it, 376 citations in OpenAlex.
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- NbVQ1 physically turns off the NbWRKY45-NbCAT2 module to promote reactive oxygen species burst and disease resistance in plants under high-potassium regime.Plant physiology · 2026Article
- Enhancing Salt Tolerance and Bioactivity inACS omega · 2026Article
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- Root system architecture and drought adaptation: emerging tools and genetic insights.Frontiers in plant science · 2026Review
- Arabidopsis thaliana exhibits wide within-species variation in tolerance to boron limitation and root and shoot trait resilience associate with a pleiotropic locus.The New phytologist · 2025Article
- Deep tissue profiling of Populus stem at single nucleus level reveals uncharacterized cell types and cell-specific gene regulatory networks.Genome biology · 2025Article
- The Role of Potassium and KUP/KT/HAK Transporters in Regulating Strawberry (Plants (Basel, Switzerland) · 2025Article
- Physiological, Chemical and Metabolite Profiling ofPlants (Basel, Switzerland) · 2025Article
- Transcriptional gene network involved in drought stress response: application for crop breeding in the context of climate change.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- The high-affinity KTransgenic research · 2025Article
- Transcriptomic and physiological insights into auxin-mediated root growth and potassium uptake in tobacco under low-potassium stress.BMC plant biology · 2025Article
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- SnRK2s: Kinases or Substrates?Plants (Basel, Switzerland) · 2025Review
- Overexpression of aInternational journal of molecular sciences · 2025Article
- Potassium extrusion by plant cells: evolution from an emergency valve to a driver of long-distance transport.The New phytologist · 2025Review
- Ameliorating effect of zinc on water transport in rice plants under saline-sodic stress.Frontiers in plant science · 2025Article
83 more citing papers are in PubMed but not listed here.
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Authors and funding
13 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Osmotic adjustment plays a fundamental role in water stress responses and growth in plants; however, the molecular mechanisms governing this process are not fully understood. Here, we demonstrated that the KUP potassium transporter family plays important roles in this process, under the control of abscisic acid (ABA) and auxin. We generated Arabidopsis thaliana multiple mutants for K(+) uptake transporter 6 (KUP6), KUP8, KUP2/SHORT HYPOCOTYL3, and an ABA-responsive potassium efflux channel, guard cell outward rectifying K(+) channel (GORK). The triple mutants, kup268 and kup68 gork, exhibited enhanced cell expansion, suggesting that these KUPs negatively regulate turgor-dependent growth. Potassium uptake experiments using (86)radioactive rubidium ion ((86)Rb(+)) in the mutants indicated that these KUPs might be involved in potassium efflux in Arabidopsis roots. The mutants showed increased auxin responses and decreased sensitivity to an auxin inhibitor (1-N-naphthylphthalamic acid) and ABA in lateral root growth. During water deficit stress, kup68 gork impaired ABA-mediated stomatal closing, and kup268 and kup68 gork decreased survival of drought stress. The protein kinase SNF1-related protein kinases 2E (SRK2E), a key component of ABA signaling, interacted with and phosphorylated KUP6, suggesting that KUP functions are regulated directly via an ABA signaling complex. We propose that the KUP6 subfamily transporters act as key factors in osmotic adjustment by balancing potassium homeostasis in cell growth and drought stress responses.
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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.