The Complex Fine-Tuning of K+ Fluxes in Plants in Relation to Osmotic and Ionic Abiotic Stresses

Autor: Isabelle Chérel, Isabelle Gaillard
Přispěvatelé: Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
Rok vydání: 2019
Předmět:
0106 biological sciences
0301 basic medicine
acide abscisique
Review
Salt Stress
01 natural sciences
lcsh:Chemistry
abscisic acid
chemistry.chemical_compound
Gene Expression Regulation
Plant
Arabidopsis
Osmotic pressure
adaptation des plantes
lcsh:QH301-705.5
Abscisic acid
Spectroscopy
2. Zero hunger
Membrane potential
Abiotic component
Vegetal Biology
biology
plants
Chemistry
General Medicine
Computer Science Applications
potassium transport regulation
Signal transduction
Signal Transduction
abiotic stress
Catalysis
Inorganic Chemistry
Dephosphorylation
03 medical and health sciences
Osmotic Pressure
Stress
Physiological
abscissins
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology
Physical and Theoretical Chemistry
Molecular Biology
Plant Physiological Phenomena
Ions
stress abiotique
Ion Transport
Organic Chemistry
Biological Transport
mécanisme de régulation
biology.organism_classification
transport de potassium
arabidopsis
030104 developmental biology
lcsh:Biology (General)
lcsh:QD1-999
13. Climate action
Potassium
Biophysics
Protein Processing
Post-Translational
Biologie végétale
Homeostasis
010606 plant biology & botany
Zdroj: International Journal of Molecular Sciences
International Journal of Molecular Sciences, MDPI, 2019, 20 (3), pp.715. ⟨10.3390/ijms20030715⟩
International Journal of Molecular Sciences, Vol 20, Iss 3, p 715 (2019)
International Journal of Molecular Sciences 3 (20), 715. (2019)
ISSN: 1422-0067
1661-6596
DOI: 10.3390/ijms20030715
Popis: As the main cation in plant cells, potassium plays an essential role in adaptive responses, especially through its involvement in osmotic pressure and membrane potential adjustments. K+ homeostasis must, therefore, be finely controlled. As a result of different abiotic stresses, especially those resulting from global warming, K+ fluxes and plant distribution of this ion are disturbed. The hormone abscisic acid (ABA) is a key player in responses to these climate stresses. It triggers signaling cascades that ultimately lead to modulation of the activities of K+ channels and transporters. After a brief overview of transcriptional changes induced by abiotic stresses, this review deals with the post-translational molecular mechanisms in different plant organs, in Arabidopsis and species of agronomical interest, triggering changes in K+ uptake from the soil, K+ transport and accumulation throughout the plant, and stomatal regulation. These modifications involve phosphorylation/dephosphorylation mechanisms, modifications of targeting, and interactions with regulatory partner proteins. Interestingly, many signaling pathways are common to K+ and Cl−/NO3− counter-ion transport systems. These cross-talks are also addressed.
Databáze: OpenAIRE
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