Comparative Profiles of Primary Metabolites of Suaeda salsa under Different Salt Stress Conditions
Suaeda salsa is an annual halophyte with nutritional value and high salt tolerance, making it crucial as an oil, medicinal, and edible plant. Currently, there is limited research in the field investigating metabolic diversity in S. salsa. In this study, our aim was to understand the salinity tolerance mechanism by examining metabolic diversity, specifically the amino acids profile, in S. salsa exposed to 0 mM, 200 mM, and 800 mM NaCl. The results of the physiological study indicated that salinity significantly affected the sodium (Na+) content in the aerial parts of the plant, with a significant increase compared to the control. Principal component analysis (PCA) revealed that differences in metabolic diversity can explain 96% of the phenotypic variation in S. salsa under salinity stress. Comparison of amino acids profiles at different salinity levels showed the highest accumulation of proline, methionine, citrulline, and lysine under 800 mM salt stress. Given the crucial role of these amino acids in S. Salsa,further studies are necessary to uncover the mechanisms behind the adaptation response.
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