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Mechanisms of Sodium Transport in Plants-Progresses and Challenges

Keisham, Monika ; Mukherjee, Soumya ; Bhatla, Satish C

International journal of molecular sciences, 2018-02, Vol.19 (3), p.647 [Periódico revisado por pares]

Switzerland: MDPI AG

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Título:
Mechanisms of Sodium Transport in Plants-Progresses and Challenges
Autor: Keisham, Monika ; Mukherjee, Soumya ; Bhatla, Satish C
Assuntos: Abiotic stress ; Animals ; Calcium - metabolism ; Cation exchanging ; Cytosol ; Cytosol - metabolism ; Efflux ; Fluorescence ; Ion Transport ; K+-ATPase ; Na+ ; Na+/H+-exchanging ATPase ; Na+/K+-exchanging ATPase ; Ouabain ; Ouabain - metabolism ; ouabain-sensitive ATPase ; Plant Physiological Phenomena ; Plant roots ; Plant Roots - metabolism ; Plants - genetics ; Plants - metabolism ; Proteins ; Review ; Salinity tolerance ; Salt Tolerance ; Sodium ; Sodium - metabolism ; sodium efflux ; sodium influx ; Sodium-Potassium-Exchanging ATPase - genetics ; Sodium-Potassium-Exchanging ATPase - metabolism ; Stress, Physiological ; Vacuoles ; Vacuoles - metabolism
É parte de: International journal of molecular sciences, 2018-02, Vol.19 (3), p.647
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-3
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ObjectType-Review-1
Descrição: Understanding the mechanisms of sodium (Na⁺) influx, effective compartmentalization, and efflux in higher plants is crucial to manipulate Na⁺ accumulation and assure the maintenance of low Na⁺ concentration in the cytosol and, hence, plant tolerance to salt stress. Na⁺ influx across the plasma membrane in the roots occur mainly via nonselective cation channels (NSCCs). Na⁺ is compartmentalized into vacuoles by Na⁺/H⁺ exchangers (NHXs). Na⁺ efflux from the plant roots is mediated by the activity of Na⁺/H⁺ antiporters catalyzed by the salt overly sensitive 1 (SOS1) protein. In animals, ouabain (OU)-sensitive Na⁺, K⁺-ATPase (a P-type ATPase) mediates sodium efflux. The evolution of P-type ATPases in higher plants does not exclude the possibility of sodium efflux mechanisms similar to the Na⁺, K⁺-ATPase-dependent mechanisms characteristic of animal cells. Using novel fluorescence imaging and spectrofluorometric methodologies, an OU-sensitive sodium efflux system has recently been reported to be physiologically active in roots. This review summarizes and analyzes the current knowledge on Na⁺ influx, compartmentalization, and efflux in higher plants in response to salt stress.
Editor: Switzerland: MDPI AG
Idioma: Inglês

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Mechanisms of Sodium Transport in Plants-Progresses and Challenges

Keisham, Monika ; Mukherjee, Soumya ; Bhatla, Satish C

Switzerland: MDPI AG

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