Salinity mitigates cadmium-induced phytotoxicity in quinoa (Chenopodium quinoa Willd.) by limiting the Cd uptake and improved responses to oxidative stress : implications for phytoremediation
(2023) In Environmental Geochemistry and Health 45(1). p.171-185- 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 µM 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... (More)
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 µM 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.
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- author
- Abdal, Noman ; Abbas, Ghulam ; Asad, Saeed Ahmad ; Ghfar, Ayman A. ; Shah, Ghulam Mustafa ; Rizwan, Muhammad ; Ali, Shafaqat and Shahbaz, Muhammad LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Antioxidants, Cadmium, Phytostabilization, ROS, Salt stress
- in
- Environmental Geochemistry and Health
- volume
- 45
- issue
- 1
- pages
- 171 - 185
- publisher
- Springer
- external identifiers
-
- scopus:85114089829
- pmid:34476635
- ISSN
- 0269-4042
- DOI
- 10.1007/s10653-021-01082-y
- language
- English
- LU publication?
- yes
- id
- 45abf952-dfbe-4e73-b5ef-e67332e7fc17
- date added to LUP
- 2021-09-29 15:20:47
- date last changed
- 2024-09-22 02:07:30
@article{45abf952-dfbe-4e73-b5ef-e67332e7fc17,
abstract = {{<p>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 µM 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 H<sub>2</sub>O<sub>2</sub> (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.</p>}},
author = {{Abdal, Noman and Abbas, Ghulam and Asad, Saeed Ahmad and Ghfar, Ayman A. and Shah, Ghulam Mustafa and Rizwan, Muhammad and Ali, Shafaqat and Shahbaz, Muhammad}},
issn = {{0269-4042}},
keywords = {{Antioxidants; Cadmium; Phytostabilization; ROS; Salt stress}},
language = {{eng}},
number = {{1}},
pages = {{171--185}},
publisher = {{Springer}},
series = {{Environmental Geochemistry and Health}},
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}},
url = {{http://dx.doi.org/10.1007/s10653-021-01082-y}},
doi = {{10.1007/s10653-021-01082-y}},
volume = {{45}},
year = {{2023}},
}