Stabilization mechanism of Pb with an amino- and mercapto-polymer to assist phytoremediation

Li, Feili; Yang, Boxuan; Yang, Feng; Wu, Jiahao; Chen, Jing; Song, Shuang; Jia, Jianhong

doi:10.1016/j.jhazmat.2022.130139

Cited by 11 publications

(2 citation statements)

References 66 publications

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“…The non-affected growth and non-decreased physiological functions of purslane were recorded despite the fact that Pb concentrations absorbed by the plant were very high ( Figure 3 ), higher than those reported elsewhere [ 29 , 30 , 31 ]. It is noteworthy that Pb in purslane aerial biomass increased significantly between Pb(600)N(0) and Pb(600)N(1).…”

Section: Discussionmentioning

confidence: 55%

The Response of Purslane (Portulaca oleracea) to Soil-Added Pb: Is It Suitable as a Potential Phytoremediation Species?

Thalassinos

Petropoulos

Antoniadis

2023

Toxics

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Soils with high lead (Pb) levels can be decontaminated with the use of tolerant plants. Their effectiveness may be increased with added soil N due to boosted plant vigor, but such an agronomic practice has not been widely reported so far. In this work, purslane (Portulaca oleracea) was tested in a pot experiment as a potential phytoremediation species using soil spiked with Pb at doses of 0, 150, 300, 600, and 900 mg kg−1 (referred to as Pb(0), Pb(150), Pb(300), Pb(600), and Pb(900), respectively) with added N (referred to as N(1); at 300 kg N ha−1) and without added N (N(0)). We found that added Pb did not cause any adverse effects on plant growth (height, and aerial and root dry biomass) and physiological parameters, which were boosted with added N. Lead plant concentration and uptake significantly increased with added N, a finding that confirms our hypothesis. The number of necessary harvests of purslane in order to reduce soil Pb to half its initial concentration was also calculated and found to decrease with added N, being 131 at Pb(900)N(1). Although results indicate the potential of purslane as a phytoremediation species, further research is needed under real field conditions.

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Section: Discussionmentioning

confidence: 55%

The Response of Purslane (Portulaca oleracea) to Soil-Added Pb: Is It Suitable as a Potential Phytoremediation Species?

Thalassinos

Petropoulos

Antoniadis

2023

Toxics

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“…Heavy metal stress, a severe abiotic stress, reduces plant production and negatively affects human and animal health and soil biodiversity ( Howladar, 2014 ; Li et al., 2022 ). Upon heavy metal sensing, a complex signaling network is stimulated by the stress of heavy metal, activating specific genes to counteract this stress ( Maksymiec, 2007 ; Li et al., 2023 ). Increased reactive oxygen species (ROS) production, such as hydroxyl (OH − ), superoxide radical

, and hydrogen peroxide (H 2 O 2 ), which are highly toxic to plants, are the main consequence of heavy metal stress ( Rady et al., 2019b ).…”

Section: Introductionmentioning

confidence: 99%

Integrative application of heavy metal–resistant bacteria, moringa extracts, and nano-silicon improves spinach yield and declines its contaminant contents on a heavy metal–contaminated soil

et al. 2022

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Microorganism-related technologies are alternative and traditional methods of metal recovery or removal. We identified and described heavy metal–resistant bacteria isolated from polluted industrial soils collected from various sites at a depth of 0–200 mm. A total of 135 isolates were screened from polluted industrial soil. The three most abundant isolate strains resistant to heavy metals were selected: Paenibacillus jamilae DSM 13815T DSM (LA22), Bacillus subtilis ssp. spizizenii DSM 15029T DSM (MA3), and Pseudomonas aeruginosa A07_08_Pudu FLR (SN36). A test was conducted to evaluate the effect of (1) isolated heavy metal–resistant bacteria (soil application), (2) a foliar spray with silicon dioxide nanoparticles (Si-NPs), and (3) moringa leaf extract (MLE) on the production, antioxidant defense, and physio-biochemical characteristics of spinach grown on heavy metal–contaminated soil. Bacteria and MLE or Si-NPs have been applied in single or combined treatments. It was revealed that single or combined additions significantly increased plant height, shoot dry and fresh weight, leaf area, number of leaves in the plant, photosynthetic pigments content, total soluble sugars, free proline, membrane stability index, ascorbic acid, relative water content, α-tocopherol, glycine betaine, glutathione, and antioxidant enzyme activities (i.e., peroxidase, glutathione reductase, catalase, superoxide dismutase, and ascorbate peroxidase) compared with the control treatment. However, applying bacteria or foliar spray with MLE or Si-NPs significantly decreased the content of contaminants in plant leaves (e.g., Fe, Mn, Zn, Pb, Cd, Ni, and Cu), malondialdehyde, electrolyte leakage, superoxide radical (O2·−), and hydrogen peroxide (H2O2). Integrative additions had a more significant effect than single applications. It was suggested in our study that the integrative addition of B. subtilis and MLE as a soil application and as a foliar spray, respectively, is a critical approach to increasing spinach plant performance and reducing its contaminant content under contaminated soil conditions.

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Harnessing the power of nonthermal Plasma: A breakthrough in stabilizing Thallium contaminants in soil and unveiling the mechanism

Huang,

Song,

Wang

et al. 2024

Chemical Engineering Journal

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Stabilization mechanism of Pb with an amino- and mercapto-polymer to assist phytoremediation

Cited by 11 publications

References 66 publications

The Response of Purslane (Portulaca oleracea) to Soil-Added Pb: Is It Suitable as a Potential Phytoremediation Species?

The Response of Purslane (Portulaca oleracea) to Soil-Added Pb: Is It Suitable as a Potential Phytoremediation Species?

Integrative application of heavy metal–resistant bacteria, moringa extracts, and nano-silicon improves spinach yield and declines its contaminant contents on a heavy metal–contaminated soil

Harnessing the power of nonthermal Plasma: A breakthrough in stabilizing Thallium contaminants in soil and unveiling the mechanism

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