Interaction of Salinity and CaCO3 Affects the Physiology and Fatty Acid Metabolism in Portulaca oleracea
2018
Bessrour, Mouna | Chelbi, Najla | Moreno, Diego A. | Chibani, Farhat | Abdelly, Chedly | Carvajal, Micaela
As a result of the extreme conditions that usually occur in Mediterranean climates, the objective of this work is to study the combined and/or separate effects of saline and alkaline stresses in Portulaca oleracea. The study was carried out to determine the nutritional food potential in relation to plant physiological parameters. The results show that alkaline media in which CaCO₃ was present did not affect growth but exposure to 100 mM NaCl decreased it greatly. Fatty acid content increased under all stress conditions but to a higher extent with salinity; however, the protein content was increased only by alkaline media. The beneficial effect of each stress on P. oleracea is discussed in light of the physiological response, pointing out the suitability of this plant for human nutrition.
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