Effect of gold nanoparticles on extracellular nutrient-cycling enzyme activity and bacterial community in soil slurries: role of nanoparticle size and surface coating

Asadishad, Bahareh; Chahal, Shawninder; Cianciarelli, Vanessa; Zhou, Kevin; Tufenkji, Nathalie

doi:10.1039/c6en00567e

Cited by 41 publications

(22 citation statements)

References 65 publications

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“…Lower toxic effects for nano from in some samples may have been determined by their tendency to aggregation and solubility. Aggregation causes a decrease of specific surface area of nanoparticles and of their solubility, and hence, lowers reactivity [19,20]. Similar conclusions were obtained by Kim et al (2011) who also observed different dehydrogenase activity in the presence of the nano-than the bulk form of CuO [9].…”

Section: Resultssupporting

confidence: 76%

“…We also observed (after 24 h in high tested concentration) inhibition cellular respiration in TTC method [19].…”

Section: Resultsmentioning

confidence: 73%

“…In turn, study of Asadishad et al (2017) showed, that the nanoparticles (citrate-Gold 50 nm, PVP-Gold 50 nm, PVP-Gold 5 nm, PVP-Gold 100 nm) caused an initial decrease in enzyme activity after 2 hours of exposure. We also observed (after 24 h in high tested concentration) inhibition cellular respiration in TTC method [19].…”

Section: Resultsmentioning

confidence: 99%

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Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

2018

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Abstract.The increased production and commercial use of nanoparticles (NPs), combined with a lack of regulation regarding their disposal, may result in the unwanted introduction of NPs to wastewater. Wastewater nutrient removal depends on the metabolisms of activated sludge bacteria and their related key enzymes. Therefore, the aim of this work was to determine the effect of aluminium oxide nanoparticles concentrations on the activated sludge enzymatic activity of microorganisms. Tested nanoparticles inhibition cellular respiration in TTC method in the four highest tested concentrations. Moreover, in most samples observed increase dehydrogenase activity. In this study, nano-Al2O3 also caused a clear stimulation of the activity of hydrolytic enzymes microorganisms of activate sludge. Effects of aluminum oxide (compound in bulk forms) on enzymatic activity were different than in the case of the nano from of Al2O3.

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Section: Resultssupporting

confidence: 76%

“…We also observed (after 24 h in high tested concentration) inhibition cellular respiration in TTC method [19].…”

Section: Resultsmentioning

confidence: 73%

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Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

2018

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“…Similar effects were observed with TiO 2 NPs (15-20 nm diameter), 164 CuO NPs (<50 nm) 165 and Au NPs (50 nm size). 166 Fe 3 O 4 NPs (10.2 ± 2.6 nm diameter) deteriorated the mutual interaction between arbuscular mycorrhizal fungi and maize, negatively affecting plant biomass and carbon accumulation and P cycling in the soil. 167 Likewise, Ag NPs (20.4 ± 3.2 nm) caused similar effects, generating plant growth inhibition and decreased root mycorrhizal colonization rate.…”

Section: Effects Of Nanoparticles In Soil and Soil Microbiotamentioning

confidence: 99%

Nanotechnology in plants: recent advances and challenges

Fiol

Terrile

Frik

et al. 2021

J of Chemical Tech & Biotech

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Nanotechnology application in agriculture has been increasing over recent years and constitutes a valuable tool to reach the goal of sustainable food production worldwide. A wide array of nanomaterials has been used to develop strategies of delivery of bioactive compounds aimed to boost the production and protection of crops. The controlled delivery of molecules from different sources including pesticides, fertilizers, DNA/RNA and proteins opens a field of vast opportunities to utilize nanovehicles in plants. However, their extensive use is being held back because of a limited understanding of their mechanism of action, as they may cause either growth-promoting effects or cytotoxicity, depending on application dose. The interlinkages of nanomaterials with plant, soil and also holobiont systems are fundamental for interpreting their behavior in each complex ecosystem. In this review we summarize recent advances in the field, focusing on the uptake and translocation mechanisms and the omics studies that allow us to integrate data and provide insight into the nature of soil-plant-nanoparticle interactions.

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“…In the present study, it was revealed that dehydrogenase activity is less sensitive to contamination by Cu, Zn, and Ni NPs than catalase activity. Previous studies have shown both the negative impact of NPs on the activity of enzymes (Kolesnikov, Timoshenko, et al, 2021;Peyrot et al, 2014;Shende et al, 2021) and the positive effect (Asadishad et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Ecotoxicological assessment of Zn, Cu and Ni based NPs contamination in Arenosols

Колесников

Timoshenko

Minnikova

et al. 2021

Sains Tanah J. Soil Sci. Agroclimatology

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Nanoparticles are increasingly used in many industrial fields because of their special properties. In this context, several questions arise related to possible negative consequences associated with nanoparticle (NPs) entrance into the ecosystem. The adsorption of NPs by soil can adversely influence its biological properties. In the present article, the influence of Cu, Zn, and Ni NPs on the biological characteristics of Arenosol is considered. Research aimed to study the effect of Cu, Zn, Ni NPs on the biological characteristics of sandy loam chernozem. Copper, Zn, and Ni NPs were added to the soil in concentrations of 100, 1,000, and 10,000 mg kg-1. The effect of NPs on the biological properties of Arenosol was evaluated after 10-day incubation. The biological indices of the ecological condition of the soil, including the germination of radish, the length of the roots, the bacteria population, Azotobacter sp. count, the catalase activity, and dehydrogenases were studied. As a result of this study, it was revealed that the degree of indices changes depending on the concentration of Cu, Zn, and Ni NPs in the Arenosols. Microbiological characteristics (bacteria population, and Azotobacter sp. count) and phytotoxic feature (length of roots and radish germination) properties were most sensitive to contamination compared to the enzyme activity of Arenosol. Based on the soil integral index of a biological state, the strongest inhibitory effect on biological parameters of Arenosols relative to the control was exerted by Cu NPs (lower than control by 48-72%), while the greatest stability in Arenosol was found for Ni NPs (lower than control by 30-55%). The studied biological parameters allow characterizing the severity of nanoparticle exposure on Arenosols. Early diagnostics of the severity of soil contamination by NPs can be successfully used to quickly assess their impact on the soil condition and prevent possible adverse consequences.

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Effect of gold nanoparticles on extracellular nutrient-cycling enzyme activity and bacterial community in soil slurries: role of nanoparticle size and surface coating

Abstract: Engineered nanoparticles such as gold that are considered to be relatively chemically inert can influence soil enzyme activities and the composition of microbial communities that play an important role in nutrient cycling and soil health.

Cited by 41 publications

References 65 publications

Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

Effect of aluminium oxide nanoparticles on the enzymatic activity on microorganisms of activated sludge

Nanotechnology in plants: recent advances and challenges

Ecotoxicological assessment of Zn, Cu and Ni based NPs contamination in Arenosols

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