The effect of combined pollution by PAHs and heavy metals on the topsoil microbial communities of Spolic Technosols of the lake Atamanskoe, Southern Russia

Gorovtsov, Andrey; Demin, Konstantin; Sushkova, Svetlana; Minkina, Tatiana; Grigoryeva, Tatiana V.; Dudnikova, Tamara; Barbashev, Andrey; Semenkov, Ivan; Romanova, Valeria; Laikov, Alexander; Rajput, Vishnu D.; Kocharovskaya, Yulia

doi:10.1007/s10653-021-01059-x

Cited by 16 publications

(6 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The data on pH, concentration of PAH and HM mentioned in the study were obtained using the methods specified in (Gorovtsov et al, 2021). In the study, the data were used to analyze their correlation with the content of bacteria mediating the sulfur cycle.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Microbiota of the sulfur cycle in an extremely contaminated Technosol undergoing pedogenesis: A culture-dependent and metagenomic approach

Demin,

Minkina,

Sushkova

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

Understanding the microbial communities involved in the global sulfur cycle is crucial for comprehending key biogeochemical processes on Earth. Most studies, however, are biased towards the marine ecosystems, as terrestrial sulfur cycle rarely investigated. In this study, we employed culture-dependent techniques and metagenomics to investigate functional, taxonomic and culturable of sulfur-cycling bacteria in extremely contaminated soils. Our findings reveal that elevated concentrations of xenobiotic pollutants, bulk sulfur content, and fluctuating redox conditions have shaped a unique microbial community involved in sulfur transformation. This community comprises non-canonical taxa carrying out typical reactions (e.g., sulfate-reducing acidobacteria), known taxa engaged in various oxidative, reductive, and organosulfur transformations (e.g., sulfur oxidizing alpha-, gamma-, and betaproteobacteria), as well as previously unidentified taxa that remain uncultured and may possess novel genes related to sulfur compound metabolism. Additionally, multiple taxa contribute to the replenishment of readily consumable compounds like sulfite and thiosulfate, facilitating cryptic biogeochemical cycling of molecules with high turnover rates but low absolute abundance. Our analysis also supports the idea that known sulfate-reducing bacteria behave differently in soils compared to aquatic habitats and belong to the soil rare biosphere, still greatly affecting their ecosystem.

show abstract

Section: Methodsmentioning

confidence: 99%

“…Ghosh & Dam, 2009;Kumar et al, 2018), on the reductive stage from studies(Rabus, Hansen & Widdel, 2006;Anantharaman et al, 2018), and on sulfur-disproportionating taxa from the review(Slobodkin & Slobodkina, 2019). Only taxa represented by at least 10 reads of the ribosomal gene were taken into consideration.…”

mentioning

confidence: 99%

Microbiota of the sulfur cycle in an extremely contaminated Technosol undergoing pedogenesis: A culture-dependent and metagenomic approach

Demin,

Minkina,

Sushkova

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Soil rich in vital nutrients and micronutrients is believed to best support the optimum health of the plant and its growth [ 21 ]. Human-made activities have currently polluted the soil with a variety of persistent organic compounds, viz., polyaromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), volatile organic compounds (VOCs), HMs (Hg and Pb), agrochemicals (pesticides, fungicides, and fertilizers), and also sometimes with excess nutrients [ 22 ]. At the same time, urbanization and industrialization have also added solid wastes, varieties of chemicals, and solvents to the environment and agricultural soil [ 23 ].…”

Section: An Appraisal Of Nanobioremediation-based Removal Of Pollutan...mentioning

confidence: 99%

Nanotechnology in the Restoration of Polluted Soil

et al. 2022

Self Cite

View full text Add to dashboard Cite

The advancements in nanoparticles (NPs) may be lighting the sustainable and eco-friendly path to accelerate the removal of toxic compounds from contaminated soils. Many efforts have been made to increase the efficiency of phytoremediation, such as the inclusion of chemical additives, the application of rhizobacteria, genetic engineering, etc. In this context, the integration of nanotechnology with bioremediation has introduced new dimensions for revamping the remediation methods. Hence, advanced remediation approaches combine nanotechnological and biological remediation methods in which the nanoscale process regulation supports the adsorption and deterioration of pollutants. Nanoparticles absorb/adsorb a large variety of contaminants and also catalyze reactions by lowering the energy required to break them down, owing to their unique surface properties. As a result, this remediation process reduces the accumulation of pollutants while limiting their spread from one medium to another. Therefore, this review article deals with all possibilities for the application of NPs for the remediation of contaminated soils and associated environmental concerns.

show abstract

“…So, the complex interactions between the fungus population inoculated and endogenous communities (bacteria, pedofauna) should be further investigated in order to optimize the structure and the degradative functions of the consortium for obtaining best degradation rates. Soil metagenomic methods during PAH bioremediation treatment could provide insight on the structure of complex microbial population [5,45].…”

Section: Limits and Future Research Perspectivesmentioning

confidence: 99%

Efficiency of Penicillium canescens in Dissipating PAH in Industrial Aged Contaminated Soil Microcosms and Its Impact on Soil Organic Matter and Ecotoxicity

Veignie¹,

Rafin²

2022

Processes

View full text Add to dashboard Cite

The filamentous fungus Penicillium canescens, isolated from oil-polluted soil, was evaluated for its ability to dissipate high-molecular-weight polycyclic aromatic hydrocarbons (PAH). The study was conducted in a microcosm containing 180 g of historical PAH-contaminated soil under non-sterile conditions with two incubation temperatures (14 °C and 18 °C) on a 12-h cycle. The experiment was conducted over 8 months, with four experimental conditions created by varying the volumes of the bulking agent and vegetable oil (olive oil) and the time of addition of these compounds. The PAH dissipation performance of the fungal augmentation treatment was compared with that achieved with a biostimulated soil (bulking agent and vegetable oil) and with the untreated soil as control. The greatest PAH dissipation was obtained with P. canescens bioaugmentation (35.71% ± 1.73), with 13 of the 16 US EPA PAH significantly dissipated, at rates above 18%, and particularly high-molecular-weight PAH, composed of more than three fused aromatic rings. Nematode toxicity tests indicated a significant decrease in the toxicity of soil bioaugmented by this fungus. Fulvic and humic contents were significantly increased by this treatment. All these results suggest that bioaugmentation with P. canescens can be used to restore soils with long-term PAH contamination.

show abstract

The effect of combined pollution by PAHs and heavy metals on the topsoil microbial communities of Spolic Technosols of the lake Atamanskoe, Southern Russia

Cited by 16 publications

References 59 publications

Microbiota of the sulfur cycle in an extremely contaminated Technosol undergoing pedogenesis: A culture-dependent and metagenomic approach

Microbiota of the sulfur cycle in an extremely contaminated Technosol undergoing pedogenesis: A culture-dependent and metagenomic approach

Nanotechnology in the Restoration of Polluted Soil

Efficiency of Penicillium canescens in Dissipating PAH in Industrial Aged Contaminated Soil Microcosms and Its Impact on Soil Organic Matter and Ecotoxicity

Contact Info

Product

Resources

About