Effects of inorganic and organic amendments on physiological parameters and antioxidant enzymes activities in Zea mays L. from a cadmium-contaminated calcareous soil

Shahkolaie, S Sefidgar; Baranimotlagh, M; Dordipour, E; Khormali, Farhad

doi:10.1016/j.sajb.2019.10.007

Cited by 32 publications

(14 citation statements)

References 58 publications

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“…After transporting soil samples to the laboratory, stone or debris were removed and mixed with 3, 5, and 10% (w/w) of each chemical amendment, lime stone (LS), steel slag (SS), and acid mine drainage sludge (AMDS) based on 3.5 kg of soil. Selected three chemical amendments have been widely used to immobilize bioavailable heavy metals via ionic complexation or precipitation mechanism in soil [8,26,34,35]. Total of 30 mixed soil samples including triplicates of each treatment, application level, and control (without mixing chemical amendments) were placed in each container (Ø 23 × 18 cm depth) and all containers were randomly placed in the greenhouse.…”

Section: Soil Collection and Experimental Setupmentioning

confidence: 99%

“…The relationship between the bioaccumulation of heavy metals and activation of antioxidant enzymes has been examined in varied plant species [21,24,25]. Previous study showed that antioxidant enzymes, CAT, APX, and GR, was found to increase by 2.3-5.3 times in plants grown in highly polluted soil with heavy metals [21,26]. Higher concentrations of hazardous heavy metals elevate the stress in plants, thereby increasing the formation of ROS.…”

Section: Introductionmentioning

confidence: 99%

“…In order to scavenge ROS, there is an increased production of antioxidant enzymes. In contrast, production of antioxidant enzymes decreases when plants were exposed to heavy metals over a long period of time [25,26]. This decline of antioxidant enzymes may be attributed to the impairment of the scavenging function of antioxidant enzymes with prolonged metal stress [25].…”

Section: Introductionmentioning

confidence: 99%

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Heavy metal remediation in soil with chemical amendments and its impact on activity of antioxidant enzymes in Lettuce (Lactuca sativa) and soil enzymes

et al. 2020

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Chemical amendments have been used to remediate soils contaminated with heavy metals. However, there is little understanding on the impacts of these amendments on the physiological and biochemical functions of plants and soil. This study used in situ microcosm experiment to understand the effect of chemical amendments on antioxidant and soil enzyme activity in plant and soil with respect to heavy metal reduction. Three chemical amendments-acid mine drainage sludge (AMDS), limestone (LS), and steel slag (SS)-were applied to soil at 3, 5, and 10% mixing ratios, and lettuce (Lactuca sativa) was cultivated in that soil for 30 days. The results showed that bioavailable Cd and Pb in soil was reduced by 9.8-40.5% and 4.2-92.5%, respectively. The most efficient amendment for heavy metal reduction was AMDS. The uptake of Cd and Pb also decreased by 0.5-66.1 and 21.6-79.5%, respectively, depending on the amendment type and application ratio. The activity of three antioxidants-catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR)-was generally higher than the control with no amendments. This result indicated that there was minimal inhibition of antioxidant activity due to the reduction of heavy metal uptake. Also, no significant difference was observed in chemical amendments applied soil compared to control in terms of soil enzyme activity. However, correlation analysis between heavy metal concentration in soil and two soil enzyme activities showed that significantly negative correlation (p < 0.01) was observed between bioavailable Pb in soil and acid-phosphatase activity. This result might indicate that impact of bioavailable Pb was much higher than Cd in terms of inhibition of soil enzyme activity. Overall, the application of chemical amendments to heavy metal polluted had a positive effect on plant physiological function and soil enzyme activity with a reduction in bioavailable heavy metals in soil and plants.

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Section: Soil Collection and Experimental Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Heavy metal remediation in soil with chemical amendments and its impact on activity of antioxidant enzymes in Lettuce (Lactuca sativa) and soil enzymes

et al. 2020

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“…Bentonite had been reported to decrease Cd uptake in rice, maize, and vegetables (Chen, Shah, Shi, Chiang, & You, 2019;Shahkolaie, Baranimotlagh, Dordipour, & Khormali, 2020;. A pot trial indicated that 0.5-5% bentonite reduced the concentrations of Cd by 9.4-31.3% in straw and 17.4-44.3% in brown rice, respectively, compared with CK (Sun et al, 2015).…”

Section: Pearson Correlation Analysismentioning

confidence: 99%

The use of bentonite and organic amendments for remediation of Cd contaminated fields: An environmental perspective

Pei

Zheng³

et al. 2020

Land Degrad Dev

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A successful technique for remediation of cadmium (Cd) contaminated soil could not only reduce its availability but also improve soil biological function. However, there are few studies that evaluate the efficiency of remediation of Cdcontaminated soil within a sustainability framework. Therefore, a field study was conducted to investigate the remediation effectiveness and environmental impact of Cd-contaminated vegetable soils using bentonite (B), bentonite + mushroom residue (BMR1, BMR2), and bentonite + vermicompost (BVC1, BVC2). Soil Cd bioavailability were inhibited after applying of B, BMR and BVC, and the most significant reduction of CaCl 2 -and HCl-Cd was obtained at BMR2, being 45.5 and 24.9% decreases, respectively, relative to the control groups. Meanwhile, the concentra-

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“…We carried out the changes of antioxidant enzymes in microalgal samples. The main enzymes involved in antioxidant systems of the living cells have been studied and their functions have been explained in the literature [14,15]. Under the stress conditions, all living cells produce reactive oxygen species (ROS).…”

Section: Introductionmentioning

confidence: 99%

Biomass and Bio-butanol Production from Borodinellopsis texensis CCALA 892 in Synthetic Wastewater: Determination of Biochemical Composition

Onay

2020

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Microalgae can generally maintain the high amounts of biomass in the wastewater and they can be converted from biomass to bio-butanol. Bio-butanol is a liquid biofuel and it has significant physical and chemical properties. In this study, we carried out bio-butanol production from Borodinellopsis texensis CCALA 892 grown in various concentrations of the municipal wastewater. Also, we determined biochemical composition ratios of microalgae samples and studied the some antioxidant enzymes such as catalase, superoxide dismutase and ascorbate peroxidase. In the current study, bio-butanol was produced by the acetonebutanol-ethanol (ABE) fermentation method. The microalgae sample grown in 25% of wastewater had the highest biomass productivity among five wastewater samples with 0.114 ± 0.002 g L-1 d-1. The carbohydrate and protein concentrations of control group increased day by day and their values reached stationary phases at seven days. The sample grown in 25% of wastewater had the highest carbohydrate concentration with 0.30 g L-1 and protein concentration with 0.35 g L-1 at the stationary phase. The maximum enzyme activities for catalase, superoxide dismutase and ascorbate peroxidase were 15.33 ± 0.88, 8.67 ± 0.67 and 33 ± 1.53 µmole/mg, respectively at 25% of wastewater. In addition, bio-butanol content of B. texensis CCALA 892 was 3.63 ± 0.21 g L-1 and its bio-butanol yield was found as 0.18 ± 0.011 g/g sugar. In the next study, we can examine large scale butanol production.

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Effects of inorganic and organic amendments on physiological parameters and antioxidant enzymes activities in Zea mays L. from a cadmium-contaminated calcareous soil

Cited by 32 publications

References 58 publications

Heavy metal remediation in soil with chemical amendments and its impact on activity of antioxidant enzymes in Lettuce (Lactuca sativa) and soil enzymes

Heavy metal remediation in soil with chemical amendments and its impact on activity of antioxidant enzymes in Lettuce (Lactuca sativa) and soil enzymes

The use of bentonite and organic amendments for remediation of Cd contaminated fields: An environmental perspective

Biomass and Bio-butanol Production from Borodinellopsis texensis CCALA 892 in Synthetic Wastewater: Determination of Biochemical Composition

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