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Publication Type J
Authors Yadav, S., H. O. Elansary, M. A. Mattar, K. M. Elhindi, M. A. Alotaibi and A. Mishra
Title Differential Accumulation of Metabolites in Suaeda Species Provides New Insights into Abiotic Stress Tolerance in C-4-Halophytic Species in Elevated CO2 Conditions
Source Agronomy-Basel
Author Keywords abiotic stress C-4 plants drought elevated CO2 halophyte salinity
Abstract Halophytic plants can adapt to grow and thrive in highly saline conditions. Suaeda species are annual halophytes with high salt tolerance and are most suitable in the restoration of salinized or contaminated saline land and as food, forage, medicine, and bioenergy. In this study, we comprehensively analyzed the different metabolic responses of Suaeda species under salt and drought stress at ambient and elevated CO2 conditions. Seedlings of Suaeda species were treated with 500 mM NaCl and 5% of polyethylene glycol under elevated CO2 stress conditions for 24 h. Then, widely untargeted metabolites were detected by gas chromatography-mass spectrometry. Different metabolites involved in amino acid metabolism, glycolysis, photorespiration, and tricarboxylic acid cycle were quantitatively determined after stress treatments. A total of 61 primary metabolites were annotated. Different treatments increased the contents of certain metabolites, such as amino acids, sugars, and organic acids, as well as some antioxidants, such as quininic acid, kaempferol, and melatonin. These substances may be correlated with osmotic tolerance, increased antioxidant activity, and medical and nutritional value in the species. This study suggests that various metabolites differentially accumulated in C-4 Suaeda species under varying stress conditions. Furthermore, this work provides new insights into the key secondary metabolite pathway involved in stress tolerance.
Author Address [Yadav, Sonam; Mishra, Avinash] Cent Salt & Marine Chem Res Inst, CSIR, Div Appl Phycol & Biotechnol, GB Marg, Bhavnagar 364002, Gujarat, India. [Elansary, Hosam O.; M. Elhindi, Khalid; A. Alotaibi, Majed] King Saud Univ, Coll Food & Agr Sci, Plant Prod Dept, Riyadh 11451, Saudi Arabia. [Elansary, Hosam O.] Alexandria Univ, Fac Agr El Shatby, Floriculture Ornamental Hort & Garden Design Dept, Alexandria 21545, Egypt. [Mattar, Mohamed A.] King Saud Univ, Coll Food & Agr Sci, Agr Engn Dept, Riyadh 11451, Saudi Arabia. [M. Elhindi, Khalid] Mansoura Univ, Fac Agr, Dept Vegetable & Floriculture, Mansoura 35516, Egypt. Mishra, A (corresponding author), Cent Salt & Marine Chem Res Inst, CSIR, Div Appl Phycol & Biotechnol, GB Marg, Bhavnagar 364002, Gujarat, India.; Elansary, HO (corresponding author), King Saud Univ, Coll Food & Agr Sci, Plant Prod Dept, Riyadh 11451, Saudi Arabia.; Elansary, HO (corresponding author), Alexandria Univ, Fac Agr El Shatby, Floriculture Ornamental Hort & Garden Design Dept, Alexandria 21545, Egypt. sonam_yadav11@yahoo.com; helansary@ksu.edu.sa; mmattar@ksu.edu.sa; kelhindi@ksu.edu.sa; malotaibia@ksu.edu.sa; avinash@csmcri.res.in
29-Character Source Abbreviation Agronomy-Basel
Publication Date Jan
Year Published 2021
Volume 11
Issue 1
Digital Object Identifier (DOI) 10.3390/agronomy11010131
Unique Article Identifier WOS:000609661900001
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