The Role of Na+ and K+ Transporters in Salt Stress Adaptation in Glycophytes

Ionic stress is one of the most important components of salinity and is brought about by excess Na + accumulation, especially in the aerial parts of plants. Since Na + interferes with K + homeostasis, and especially given its involvement in numerous metabolic processes, maintaining a balanced cytosolic Na + /K + ratio has become a key salinity tolerance mechanism. Achieving this homeostatic balance requires the activity of Na + and K + transporters and/or channels. The mechanism of Na + and K + uptake and translocation in glycophytes and halophytes is essentially the same, but glycophytes are more susceptible to ionic stress than halophytes. The transport mechanisms involve Na + and/or K + transporters and…

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