ArticleThe Plant journal : for cell and molecular biology2009
Outward-rectifying K+ channel activities regulate cell elongation and cell division of tobacco BY-2 cells.
Article in The Plant journal : for cell and molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Subcellular Potassium Ion-Mediated Structural Coordination Between Mesophyll Cells and Chloroplasts Determines COPlant, cell & environment · 2026Article
- Potassium-Solubilizing Bacteria Mediate Light-Potassium Synergy to Enable Native Pueraria lobata to Outcompete Invasive Mikania micrantha.Microbial ecology · 2026Article
- Functional Characterization of the 14-3-3 Gene Family in Alfalfa and the Role ofInternational journal of molecular sciences · 2024Article
- Investigation of two-pore KHeliyon · 2024Article
- Comparative transcriptome analysis between inbred lines and hybrids provides molecular insights into KFrontiers in plant science · 2022Article
- Machine learning based approach to pH imaging and classification of single cancer cells.APL bioengineering · 2021Article
- Carbon nanoparticles enhance potassium uptake via upregulating potassium channel expression and imitating biological ion channels in BY-2 cells.Journal of nanobiotechnology · 2020Article
- Unique features of the grapevine VvK5.1 channel support novel functions for outward K+ channels in plants.Journal of experimental botany · 2019Article
- Carbonic Anhydrases Function in Anther Cell Differentiation Downstream of the Receptor-Like Kinase EMS1.The Plant cell · 2017Article
- Osmotic stress responses and plant growth controlled by potassium transporters in Arabidopsis.The Plant cell · 2013Article
- Regulating contractility of the actomyosin cytoskeleton by pH.Cell reports · 2012Article
- Involvement of the putative Ca²⁺-permeable mechanosensitive channels, NtMCA1 and NtMCA2, in Ca²⁺ uptake, Ca²⁺-dependent cell proliferation and mechanical stress-induced gene expression in tobacco (Nicotiana tabacum) BY-2 cells.Journal of plant research · 2012Article
- Membrane localisation diversity of TPK channels and their physiological role.Plant signaling & behavior · 2011Article
- Improved cytoplasmic pH measurements in SNARF-1 stained plant cells by image processing.Plant signaling & behavior · 2010Article
- Phosphatidylinositol (4,5)bisphosphate inhibits K+-efflux channel activity in NT1 tobacco cultured cells.Plant physiology · 2009Article
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5 authors.
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Abstract
Potassium ions (K+) are required for plant growth and development, including cell division and cell elongation/expansion, which are mediated by the K+ transport system. In this study, we investigated the role of K+ in cell division using tobacco BY-2 protoplast cultures. Gene expression analysis revealed induction of the Shaker-like outward K+ channel gene, NTORK1, under cell-division conditions, whereas the inward K+ channel genes NKT1 and NtKC1 were induced under both cell-elongation and cell-division conditions. Repression of NTORK1 gene expression by expression of its antisense construct repressed cell division but accelerated cell elongation even under conditions promoting cell division. A decrease in the K+ content of cells and cellular osmotic pressure in dividing cells suggested that an increase in cell osmotic pressure by K+ uptake is not required for cell division. In contrast, K+ depletion, which reduced cell-division activity, decreased cytoplasmic pH as monitored using a fluorescent pH indicator, SNARF-1. Application of K+ or the cytoplasmic alkalizing reagent (NH(4))(2)SO(4) increased cytoplasmic pH and suppressed the reduction in cell-division activity. These results suggest that the K+ taken up into cells is used to regulate cytoplasmic pH during cell division.
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