ArticlePlant signaling & behavior2009
Intracellular Ca2+ stores could participate to abscisic acid-induced depolarization and stomatal closure in Arabidopsis thaliana.
Article in Plant signaling & behavior, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 25 citations in OpenAlex.
- A clade of receptor-like cytoplasmic kinases and 14-3-3 proteins coordinate inositol hexaphosphate accumulation.Nature communications · 2024Article
- Cytosolic alkalinization in guard cells: an intriguing but interesting event during stomatal closure that merits further validation of its importance.Frontiers in plant science · 2024Review
- Calmodulin Is the Fundamental Regulator of NADK-Mediated NAD Signaling in Plants.Frontiers in plant science · 2019Article
- Methanol induces cytosolic calcium variations, membrane depolarization and ethylene production in arabidopsis and tobacco.Annals of botany · 2018Article
- Deciphering the dual effect of lipopolysaccharides from plant pathogenic Pectobacterium.Plant signaling & behavior · 2015Article
- Deciphering early events involved in hyperosmotic stress-induced programmed cell death in tobacco BY-2 cells.Journal of experimental botany · 2014Article
- Could FaRP-Like Peptides Participate in Regulation of Hyperosmotic Stress Responses in Plants?Frontiers in endocrinology · 2014Review
- Increased anion channel activity is an unavoidable event in ozone-induced programmed cell death.PloS one · 2010Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In Arabidopsis thaliana cell suspension, abscisic acid (ABA) induces changes in cytosolic calcium concentration ([Ca(2+)](cyt)) which are the trigger for ABA-induced plasma membrane anion current activation, H(+)-ATPase inhibition, and subsequent plasma membrane depolarization. In the present study, we took advantage of this model to analyze the implication of intracellular Ca(2+) stores in ABA signal transduction through electrophysiological current measurements, cytosolic Ca(2+) activity measurements with the apoaequorin Ca(2+) reporter protein and external pH measurement. Intracellular Ca(2+) stores involvement was determined by using specific inhibitors of CICR channels: the cADP-ribose/ryanodine receptor (Br-cADPR and dantrolene) and of the inositol trisphosphate receptor (U73122). In addition experiments were performed on epidermal strips of A. thaliana leaves to monitor stomatal closure in response to ABA in presence of the same pharmacology. Our data provide evidence that ryanodine receptor and inositol trisphosphate receptor could be involved in ABA-induced (1) Ca(2+) release in the cytosol, (2) anion channel activation and H(+)-ATPase inhibition leading to plasma membrane depolarization and (3) stomatal closure. Intracellular Ca(2+) release could thus contribute to the control of early events in the ABA signal transduction pathway in A. thaliana.
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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.