ArticlePlant signaling & behavior2013
A9C sensitive Cl⁻-accumulation in A. thaliana root cells during salt stress is controlled by internal and external calcium.
Article in Plant signaling & behavior, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 19 citations in OpenAlex.
- Chloride transport and homeostasis in plants.Quantitative plant biology · 2025Review
- Protein Structural Modeling and Transport Thermodynamics Reveal That Plant Cation-Chloride Cotransporters Mediate Potassium-Chloride Symport.International journal of molecular sciences · 2024Article
- Chloride is beneficial for growth of the xerophyte Pugionium cornutum by enhancing osmotic adjustment capacity under salt and drought stresses.Journal of experimental botany · 2020Article
- Chloride as a Beneficial Macronutrient in Higher Plants: New Roles and Regulation.International journal of molecular sciences · 2019Review
- Plant Cation-Chloride Cotransporters (CCC): Evolutionary Origins and Functional Insights.International journal of molecular sciences · 2018Review
- Perspectives for using genetically encoded fluorescent biosensors in plants.Frontiers in plant science · 2013Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The involvement of chloride in salt stress symptoms and salt tolerance mechanisms in plants has been less investigated in the past. Therefore, we studied the salt-induced chloride influx in Arabidopsis expressing the GFP-based anion indicator Clomeleon. High salt concentrations induce two phases of chloride influx. The fast kinetic phase is likely caused by membrane depolarization, and is assumed to be mediated by channels. This is followed by a slower "saturation" phase, where chloride is accumulated in the cytoplasm. Both phases of chloride uptake are dependent on the presence of external calcium. In general: with high [Ca (2+)] less chloride is accumulated in the cytoplasm. Surprisingly, also the internal calcium availability has an impact on chloride transport. A complete block of the second phase of chloride influx is achieved by the anion channel blocker A9C and trivalent cations (La (3+), Gd (3+), and Al (3+)). Other channel blockers and diuretics were found to inhibit the process partially. The results suggest that several transporter species are involved here, including electroneutral cation-chloride-cotransporters, and a part of chloride possibly enters the cells through cation channels after salt application.
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