Although sodium (Na + ) is not necessary for most plants, it may be helpful to plants in a variety of conditions, especially when potassium (K + ) is insufficient. Therefore, it can be considered as a 'non-essential' or 'functional' nutrient. By contrast, plants are forced to respond to a higher concentration of Na + toxicity in the environment and tissues in many salinized regions of the domain. Progress was made in the identification of membrane transporters associated with Na + absorption and distribution. It is vital in alleviating salt stress and is also important for optimizing Na + as a rich functional nutrient. In both situations, plants may need to monitor the mechanism of Na + concentration (probably in various parts) to control gene expression and transport activities. Nothing is clear on whether or not these pathways work and even if they do how they perform at the cellular or tissue levels. This chapter reviews the regulation and potential sensing mechanism of Na + in salt stress and Na + environment. The effect of sodium on soil is opposite to that of salinity. When this separation occurs, clay particles swell, leading to swelling and soil dispersion. Soil diffusion causes clay particles to block soil pores and decrease soil permeability. Salt stress has significant impact on plant growth and productivity, which indicates the importance of understanding the mechanism of plant salt tolerance. The resistance of plants to salt stress varies greatly, which can be seen from their different developmental responses. Most commonly used crops are sensitive to salt stress.
|Title of host publication||Beneficial Chemical Elements of Plants|
|Subtitle of host publication||Recent Developments and Future Prospects|
|Number of pages||24|
|Publication status||Published - 6 Mar 2023|
- Crop production
- Effects on plants
- Sodium and abiotic stress