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Publication Type J
Authors Abdal, N., G. Abbas, S. A. Asad, A. A. Ghfar, G. M. Shah, M. Rizwan, S. Ali and M. Shahbaz
Title Salinity mitigates cadmium-induced phytotoxicity in quinoa (Chenopodium quinoa Willd.) by limiting the Cd uptake and improved responses to oxidative stress: implications for phytoremediation
Source Environmental Geochemistry and Health
Language English
Author Keywords Cadmium Antioxidants Salt stress ROS Phytostabilization lipid-peroxidation toxicity tolerance accumulation growth plants wheat l. Engineering Environmental Sciences & Ecology Public, Environmental & Occupational Health Water Resources
Abstract Cadmium (Cd) contamination and soil salinity are the main environmental issues reducing crop productivity. This study aimed to examine the combined effects of salinity (NaCl) and Cd on the physiological and biochemical attributes of quinoa (Chenopodium quinoa Willd.). For this purpose, 30-day-old plants of quinoa genotype "Puno" were transplanted in Hoagland's nutrient solution containing diverse concentrations of Cd: 0, 50, 100, 200 mu M Cd, and salinity: 0, 150, and 300 mM NaCl. Results demonstrated that plant growth, stomatal conductance, and pigment contents were significantly lower at all Cd concentrations than the control plants. Quinoa plants exhibited improved growth and tolerance against Cd when grown at a lower level of salinity (150 mM NaCl) combined with Cd. In contrast, the elevated concentration of salinity (300 mM NaCl) combined with Cd reduced shoot and root growth of experimental plants more than 50%. Combined application of salinity and Cd increased Na (25-fold), while lessened the Cd (twofold) and K (1.5-fold) uptake. A blend of high concentrations of Na and Cd caused overproduction of H2O2 (eightfold higher than control) contents and triggered lipid peroxidation. The activities of antioxidant enzymes: ascorbate peroxidase (APX), catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) were 13, 12, 7 and ninefold higher than control to mitigate the oxidative stress. Due to restricted root to shoot translocation, and greater tolerance potential against Cd, the quinoa genotype, Puno, is suitable for phytostabilization of Cd in saline soils.
Author Address [Abdal, Noman; Abbas, Ghulam; Shah, Ghulam Mustafa] COMSATS Univ Islamabad, Dept Environm Sci, Vehari Campus, Vehari 61100, Pakistan. [Asad, Saeed Ahmad] COMSATS Univ Islamabad, Ctr Climate Res & Dev CCRD, Islamabad, Pakistan. [Ghfar, Ayman A.] King Saud Univ, Coll Sci, Dept Chem, POB 2455, Riyadh 11451, Saudi Arabia. [Rizwan, Muhammad; Ali, Shafaqat] Govt Coll Univ Faisalabad, Dept Environm Sci & Engn, Faisalabad, Pakistan. [Ali, Shafaqat] China Med Univ, Dept Biol Sci & Technol, Taichung 40402, Taiwan. [Shahbaz, Muhammad] Lund Univ, Ctr Environm & Climate Sci, S-22362 Lund, Sweden. Abbas, G (corresponding author), COMSATS Univ Islamabad, Dept Environm Sci, Vehari Campus, Vehari 61100, Pakistan.; Ali, S (corresponding author), Govt Coll Univ Faisalabad, Dept Environm Sci & Engn, Faisalabad, Pakistan. g.a92pk@gmail.com; shafaqataligill@gcuf.edu.pk
ISSN 0269-4042
ISBN 0269-4042
29-Character Source Abbreviation Environ. Geochem. Health
Beginning Page 15
Digital Object Identifier (DOI) 10.1007/s10653-021-01082-y
Unique Article Identifier WOS:000692087000001

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