Salinity mitigates cadmium-induced phytotoxicity in quinoa (Chenopodium quinoa Willd.) by limiting the Cd uptake and improved responses to oxidative stress: implications for phytoremediation

Abdal, Noman; Abbas, Ghulam; Asad, Saeed Ahmad; Ghfar, Ayman A.; Shah, Ghulam Mustafa; Rizwan, Muhammad; Ali, Shafaqat; Shahbaz, Muhammad

doi:10.1007/s10653-021-01082-y

Cited by 20 publications

(47 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, to safeguard the cell from toxic effects of H 2 O 2 , its conversion into less toxic forms should be done efficiently. Nature has gifted a strong defense system to plants in the form of antioxidant enzymes and non-enzymes [ 3 , 21 ]. Amongst numerous antioxidant enzymes, SOD is regarded as the most crucial one due to its major role in the conversion of superoxide radicals to H 2 O 2 and oxygen [ 10 , 41 ].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Potassium and Humic Acid Synergistically Increase Salt Tolerance and Nutrient Uptake in Contrasting Wheat Genotypes through Ionic Homeostasis and Activation of Antioxidant Enzymes

Abbas

Rehman

Siddiqui

et al. 2022

Plants

Self Cite

View full text Add to dashboard Cite

Salinity limits the growth and nutrient uptake in crop species. Studies show that both potassium (K) and humic acid (HA) improved plant tolerance to salinity. However, the interactive effect of K and HA on plant tolerance to salinity stress remains unknown. This pot study examined the effect of application of K (0, 5 or 10 mM) and HA (0 or 2 g kg−1), alone or in combination, on the growth and physiology under salinity (100 mM NaCl) in two wheat genotypes (SARC 1, salt tolerant; and SARC 5, salt sensitive). The results revealed that salt stress reduced shoot biomass by 35% and 49% in SARC 1 and SARC 5, respectively. Salinity induced overproduction of H2O2 and lipid peroxidation in both genotypes, but the decline in pigments and stomatal conductance was more profound in SARC 5 than in SARC 1. Combined application of 10 mM K and HA was most effective in alleviating salt stress with improved plant biomass by 47% and 43% in SARC 1 and SARC 5, respectively. Combined application of 10 mM K and HA mitigated salt and induced oxidative stress with the activities of APX, CAT, POD and SOD increased by up to 2.8 folds in SARC 1, and by upto 2.5 folds in SARC 5, respectively. Root and shoot Na contents were increased, while K, Fe and Zn contents were decreased under saline conditions. HA combined with K decreased Na and increased K, Fe and Zn contents in both genotypes. Combined application of 10 mM K and HA was more promising for increasing wheat salt tolerance and nutrient uptake and genotype SARC 1 performed better than SARC 5 for cultivation on saline soils.

show abstract

Section: Discussionmentioning

confidence: 99%

“…It has been proposed that K is more efficient for osmotic adjustment than either Na or Cl under saline conditions [ 19 , 20 ]. The availability of K for plants is drastically decreased under saline conditions [ 21 ]. Hence, adequate amount of K within the cells is necessary to offset the damaging effects of salt stress [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Potassium and Humic Acid Synergistically Increase Salt Tolerance and Nutrient Uptake in Contrasting Wheat Genotypes through Ionic Homeostasis and Activation of Antioxidant Enzymes

Abbas

Rehman

Siddiqui

et al. 2022

Plants

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent times, various human activities, such as mining, the release of effluents from industries, rapid urbanization and agricultural practices, have increased cadmium (Cd) and lead (Pb) contamination in soils [1,2]. Cd and Pd are not necessary for the normal metabolic functions of plants, and thus both are considered non-essential elements [2,3]. The average concentration of Cd in non-contaminated soils is 0.1-0.2 mg kg −1 [4].…”

Section: Introductionmentioning

confidence: 99%

“…Cadmium is very toxic even at very low concentrations, so, the uptake of Cd by plants affects their growth and normal metabolic activities [6]. Various abnormalities, such as stunted plant growth, damage to pigments and the obliteration of cell membranes and organelles, have been reported under Cd stress [3,7]. An indirect effect of Cd stress in plants is the generation of reactive oxygen species (ROS) [8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Differential Uptake and Translocation of Cadmium and Lead by Quinoa: A Multivariate Comparison of Physiological and Oxidative Stress Responses

Bamagoos

Alharby

Abbas

2022

Toxics

Self Cite

View full text Add to dashboard Cite

Contamination of soils with cadmium (Cd) and lead (Pb) has emerged as a serious environmental issue that reduces crop productivity. However, the metals tolerance and accumulation potential of quinoa (Chenopodium Quinoa Willd) under the combined stress of Cd and Pb has not yet been explored. In the present hydroponic study, the physiological and biochemical characteristics of quinoa exposed to Cd and Pb were explored. Four-week-old plants of quinoa genotype ‘Puno’ were grown under different concentrations of Cd (0, 50 and 100 µM), Pb (0, 250 and 500 µM) alone as well as in combinations. The results showed that with increasing Cd and Pb levels in the nutrient solution, the plant biomass, stomatal conductance and chlorophyll contents were decreased. However, the concurrent application of higher concentrations of Cd (100 µM) and Pb (500 µM) caused even more reduction in the plant biomass (more than 50% than the control) and physiological attributes. The combined application of Pb and Cd caused oxidative stress through an overproduction of H2O2 (10-fold) and TBARS (12.5-fold), leading to decrease in membrane stability (52%). The oxidative stress was alleviated by a 7-fold, 10-fold and 9-fold overactivation of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), respectively. An excessive uptake of Cd resulted in a limited uptake of Pb and K in the roots and shoots of quinoa plants. The Cd and Pb tolerance and uptake potential of Puno showed its ability to stabilize Cd and Pb in co-contaminated soils.

show abstract

Nickel Toxicity and Tolerance in Plants

Helaoui,

Mkhinini,

Boughattas

et al. 2023

Heavy Metal Toxicity and Tolerance in Plants

View full text Add to dashboard Cite

Salinity mitigates cadmium-induced phytotoxicity in quinoa (Chenopodium quinoa Willd.) by limiting the Cd uptake and improved responses to oxidative stress: implications for phytoremediation

Cited by 20 publications

References 42 publications

Potassium and Humic Acid Synergistically Increase Salt Tolerance and Nutrient Uptake in Contrasting Wheat Genotypes through Ionic Homeostasis and Activation of Antioxidant Enzymes

Potassium and Humic Acid Synergistically Increase Salt Tolerance and Nutrient Uptake in Contrasting Wheat Genotypes through Ionic Homeostasis and Activation of Antioxidant Enzymes

Differential Uptake and Translocation of Cadmium and Lead by Quinoa: A Multivariate Comparison of Physiological and Oxidative Stress Responses

Nickel Toxicity and Tolerance in Plants

Contact Info

Product

Resources

About