Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
To explore the potential of ectomycorrhizal (ECM) Pinus sylvestris (P. sylvestris) utilizing in the phytoremediation of a combined heavy metal contaminated tailings pond, Pisolithus sp.1(P1)-. Pisolithus sp.2 (P2)-. Cenococcum geophilum (Cg)-. Laccaria sp. (L1)- ECM, and non-ectomycorrhizal (NM) P. sylvestris were planted separately in lead (Pb)-zinc-(Zn)-cadmium-(Cd)-combined polluted soil, collected from a tailings pond. After four months, growth, photosynthetic parameters, nutrient and heavy metal levels of the plants were evaluated. The physical and chemical properties and enzyme activities of soil before and after ECM plants planting were also investigated. The results showed that inoculation with ECM fungi improved the survival rates of host plants by increasing the biomass, photosynthesis (photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), intercellular CO concentration (Ci)), and mineral nutrients (phosphorus (Pi), magnesium (Mg), iron (Fe), calcium (Ca)), while it decreased the transfer factors of Cd, Pb, and Zn. In addition, ECM P. sylvestris significantly accumulated much more Cd, Pb, and Zn than NM seedlings, while it reduced pH and the availability of heavy metals (DTPA-Cd, DTPA-Pb, DTPA-Zn) in soil and increased activity of soil enzymes (acid phosphatase, alkaline phosphatase, urease). Therefore, the ECM symbionts have the great potential for phytoremediation of abandoned tailings pond, and this study provides a theoretical basis and application premise for the phytoremediation of abandoned tailings pond.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.scitotenv.2020.137475 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Environmental assessment of potential toxic elements in the mining district of Mazarrón (SE, Spain).
Sci Total Environ
September 2025
Sustainable Use, Management and Reclamation of Soil and Water Research Group, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203 Cartagena, Spain. Electronic address:
Mining areas are highly susceptible to environmental contamination due to the accumulation of potentially toxic elements (PTEs), necessitating regular monitoring to assess environmental risks. In this study, soil samples were collected from two depths (0-15 cm and 15-30 cm) at 74 stations, along with deep waste samples (0-12 m) from three adjacent tailings ponds in the Mazarrón mining area, Spain. Soil/waste physicochemical properties and the Cd, Cu, Zn, and Pb concentrations of total, water-soluble, and bioavailable fractions were analyzed.
View Article and Find Full Text PDFIsolation of Ultra-Small -Affiliated Verrucomicrobia from a Methane-Fed Bioreactor.
Microorganisms
August 2025
Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33/2, Moscow 119071, Russia.
The bacterial phylum accommodates free-living and symbiotic microorganisms, which inhabit a wide range of environments and specialize in polysaccharide degradation. Due to difficulties in cultivation, much of the currently available knowledge about these bacteria originated from cultivation-independent studies. A phylogenetic clade defined by the free-living bacterium from oilsands tailings pond, , and the symbiont of the tunicate sp.
View Article and Find Full Text PDFStable isotope method for tracing oil sands bitumen sources, differentiating δC in four carbon fractions in water and acid-extractable organics.
Sci Total Environ
August 2025
InnoTech Alberta, 3608 33 St NW, Calgary, AB T2L 2A6, Canada.
This study was conducted at an oil-sands operation in the North Athabasca Oil Sands Region, Alberta, Canada to identify suitable isotopic tracers for differentiating between processed (anthropogenic) and non-processed bitumen residues in water. A combination of isotopes of water, solutes, and acid-extractable organics (AEO) were measured in tailings ponds containing oil-sands process water (OSPW), groundwater from the basal McMurray Formation, and a variety of on-lease groundwater monitoring wells and mitigation structures, the latter designed to intercept potentially contaminated runoff. This study provides supporting evidence that tailings ponds are well-contained and are not hydraulically connected with monitoring wells in local Quaternary aquifers or underlying formations at the investigated site.
View Article and Find Full Text PDFDegradation of cyanide contaminants in tailing residues by persulfate-based advanced oxidation processes: Coupling effects of alkali and heat.
J Environ Manage
August 2025
The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China.
Cyanide tailings (CTs), hazardous solid waste from gold extraction, demand urgent detoxification to mitigate long-term environmental risks. This study develops an advanced oxidation process (AOP) combining persulfate, alkali, and heat (PDS/alkali/heat) that achieves 71.0 % degradation of cyanides (1580 → 458 mg/kg) and reduces cyanide leachability by >98 % (11.
View Article and Find Full Text PDFRadial oxygen loss of Typha latifolia outperforms microbial effects in heavy metal(loid) stabilization.
Environ Res
August 2025
School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou, 510006, China.
Wetland plants play a critical role in the remediation of tailings pond wetlands. Their unique radial oxygen loss (ROL) and rhizosphere microbial communities can modify soil properties (e.g.
View Article and Find Full Text PDF