Selenium spiked in soil promoted zinc accumulation of Chinese cabbage and improved its antioxidant system and lipid peroxidation

Dai, Huiping; Wei, Shuhe; Skuza, Lidia; Jia, Genliang

doi:10.1016/j.ecoenv.2019.05.017

Cited by 40 publications

(20 citation statements)

References 33 publications

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“…In the present study, 2). Similar results also have been reported by Dai et al (2019). Zn is an essential element in plants that is involved in the physiological processes of growth and metabolism and is regarded as a necessary co-factor of six classes of enzymes in plants, which include oxidoreductases (Mao et al 2015).…”

Section: Discussionsupporting

confidence: 87%

“…According to previous studies, Se (Na 2 SeO 4 ) exposure levels were set as 0, 0.5, 1.0, and 2.5 mg Se/kg dry soil, and Zn (ZnSO 4 .7H 2 O) application rates were set as 0, 20, and 50 mg Zn/kg dry soil (Dai et al 2019;Xue et al 2020). Each treatment has three replicates for a total of 12 treatments (Table 1).…”

Section: Experimental Designmentioning

confidence: 99%

“…When different elements enter the soil-plant system, their interaction will affect the bioavailability of elements in soil and the growth of crops. Previous studies found that application of L-SeMet (L-selenomethionine) and EDTA-Zn (sodium ethylenediamine tetraacetate-Zn) in soil signi cantly (p < 0.05) increased the biomass of pak choi (Dai et al 2019). Selenate and Zn sulfate coamended treatments could reduce the binding intensity of Zn, thereby making Zn the available forms for plants and promoting the uptake and translocation of Zn by pak choi (Xue et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Selenate and Zn sulfate coamended treatments could reduce the binding intensity of Zn, thereby making Zn the available forms for plants and promoting the uptake and translocation of Zn by pak choi (Xue et al 2020). Previously, Poblaciones and Rengel (2017) and Dai et al (2019) veri ed that the co-amendment of Se and Zn could promote the uptake of Se/Zn in plants. By contrast, in a eld experiment, Ramezani et al (2016) reported that soil co-application of selenite and Zn sulfate meliorated the uptake of Se but restrained Zn uptake of alfalfa.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Selenium–Zinc Interactions on the Bioavailability of Selenium/Zinc in Soil and Its Mechanism

Xue

Wang

Zhou

et al. 2021

Preprint

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Purpose Biofortification is a core strategy in solving the malnutrition of selenium (Se) and zinc (Zn) for global human being. However, whether Se and Zn co-biofortification can manipulate soil Se/Zn bioavailability and its mechanism still remains unclear. Methods The pot experiment was conducted to investigate the co-amendment of selenate and Zn sulfate on the growth of pak choi, especially on the uptake of Se and Zn, and to elucidate the effect of soil pH and soil enzyme activity on the bioavailability of Se/Zn in soil and its mechanism. Results Results showed that plant growth inhibition caused by the application of high Se rate was significantly alleviated with Zn supplements, and the biomass in the shoots and roots of pak choi in Se2.5Zn20 and Se2.5Zn50 treatments significantly increased (67.0%–112.8%) compared with the Se2.5Zn0 treatment. Additionally, Se and Zn co-amended application significantly enhanced soil available Se/Zn content compared with correspond single Se/Zn treatments. The increase of soil available Zn content could be attributed to the significant decrease in the soil pH, while the increase of soil available Se was from the biochemical conversion caused by the activity of catalase, urease, and alkaline phosphatase. Conclusion Se–Zn co-amendment can ameliorate bioavailability of Se/Zn in soil by regulate the pH and enzyme activity of soil.

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Section: Discussionsupporting

confidence: 87%

Section: Experimental Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Selenium–Zinc Interactions on the Bioavailability of Selenium/Zinc in Soil and Its Mechanism

Xue

Wang

Zhou

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Antioxidant activity was measured following the method used in a previous study [21,37,38]. Frozen leaf samples (0.2 g) were ground with a mortar and pestle with liquid nitrogen and homogenized with 2 mL of 25 mM potassium phosphate buffer solution (pH 7.8) containing 0.4 mM EDTA-Na 2 and 2% (w/v) polyvinylpyrrolidine-40.…”

Section: Biomass and Antioxidant Analysis In Plantsmentioning

confidence: 99%

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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Effects of different soil pH and nitrogen fertilizers on Bidens pilosa L. Cd accumulation

Dai

Wei

Skuza

2020

Environ Sci Pollut Res

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Selenium spiked in soil promoted zinc accumulation of Chinese cabbage and improved its antioxidant system and lipid peroxidation

Cited by 40 publications

References 33 publications

Effects of Selenium–Zinc Interactions on the Bioavailability of Selenium/Zinc in Soil and Its Mechanism

Effects of Selenium–Zinc Interactions on the Bioavailability of Selenium/Zinc in Soil and Its Mechanism

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

Effects of different soil pH and nitrogen fertilizers on Bidens pilosa L. Cd accumulation

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