Long-term effect of ZnO and CuO nanoparticles on soil microbial community in different types of soil

Jośko, Izabela; Oleszczuk, Patryk; Dobrzyńska, Joanna; Futa, Barbara; Joniec, Jolanta; Dobrowolski, Ryszard

doi:10.1016/j.geoderma.2019.06.010

Cited by 75 publications

(17 citation statements)

References 49 publications

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“…Moreover, the FESEM and XRD analyses have confirmed the active nano nature of the nZnO particles. Therefore, it can be assumed that the transient toxicity induced by nZnO in our study was due to Zn 2+ ions released and absorbed by microbes after dissolution of nZnO 26 , 30 , 31 . The biochar, being an organic material and known as sorbent for heavy metals, was expected to complex ionic zinc thereby reducing the toxicity.…”

Section: Discussionmentioning

confidence: 94%

“…The toxicity of nZnO, or any metal oxide nanoparticle for that matter, is related to the extent of its dissolution and subsequent availability of its constituent metal ions to microbes 27 , 28 . Although we did not measure dissolution of nZnO used in our study nor did we measure the possible microbial uptake of Zn 2+ , this nanomaterial is known for its easy dissolution in soils 29 , 30 . Moreover, the FESEM and XRD analyses have confirmed the active nano nature of the nZnO particles.…”

Section: Discussionmentioning

confidence: 99%

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Toxicity of biogenic zinc oxide nanoparticles to soil organic matter cycling and their interaction with rice-straw derived biochar

Shemawar

Mahmood

Hussain

et al. 2021

Sci Rep

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Given the rapidly increasing use of metal oxide nanoparticles in agriculture as well as their inadvertent addition through sewage sludge application to soils, it is imperative to assess their possible toxic effects on soil functions that are vital for healthy crop production. In this regard, we designed a lab study to investigate the potential toxicity of one of the most produced nanoparticles, i.e. zinc oxide nanoparticles (nZnO), in a calcareous soil. Microcosms of 80 g of dry-equivalent fresh soils were incubated in mason jars for 64 days, after adding 100 or 1000 mg of biogenically produced nZnO kg−1 soil. Moreover, we also added rice-straw derived biochar at 1 or 5% (w: w basis) hypothesizing that the biochar would alleviate nZnO-induced toxicity given that it has been shown to adsorb and detoxify heavy metals in soils. We found that the nZnO decreased microbial biomass carbon by 27.0 to 33.5% in 100 mg nZnO kg−1 soil and by 39.0 to 43.3% in 1000 mg nZnO kg−1 soil treatments across biochar treatments in the short term i.e. 24 days after incubation. However, this decrease disappeared after 64 days of incubation and the microbial biomass in nZnO amended soils were similar to that in control soils. This shows that the toxicity of nZnO in the studied soil was ephemeral and transient which was overcome by the soil itself in a couple of months. This is also supported by the fact that the nZnO induced higher cumulative C mineralization (i.e. soil respiration) at both rates of addition. The treatment 100 mg nZnO kg−1 soil induced 166 to 207%, while 1000 mg nZnO kg−1 soil induced 136 to 171% higher cumulative C mineralization across biochar treatments by the end of the experiment. However, contrary to our hypothesis increasing the nZnO addition from 100 to 1000 mg nZnO kg−1 soil did not cause additional decrease in microbial biomass nor induced higher C mineralization. Moreover, the biochar did not alleviate even the ephemeral toxicity that was observed after 24d of incubation. Based on overall results, we conclude that the studied soil can function without impairment even at 1000 mg kg−1 concentration of nZnO in it.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Toxicity of biogenic zinc oxide nanoparticles to soil organic matter cycling and their interaction with rice-straw derived biochar

Shemawar

Mahmood

Hussain

et al. 2021

Sci Rep

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“…Different fractions of Cu and Zn were also extracted from each treatment with Soil 2 and quantified for comparison. The water soluble fractions of Cu and Zn (Jośko et al, 2019) were extracted by mixing 1 g of soil particles and 10 mL of ultrapure water, followed by stirring for 24 h. The exchangeable fractions (including water soluble fractions) were measured by mixing 0.35 g of soil particles and 3.5 mL of 0.01 M CaCl 2 . The bioavailable fractions were quantified through the extraction of 2 g soil by 4 mL mixed extractant (0.01 M CaCl 2, 0.005 M diethylenetriaminepentaacetic acid and 0.1 M triethanolamine, pH = 7.6) (Gao et al, 2018).…”

Section: Quantification Of Dissolution and Dispersion In Soil Water Extractmentioning

confidence: 99%

Application of low dosage of copper oxide and zinc oxide nanoparticles boosts bacterial and fungal communities in soil

Liu

Yang

Pan

et al. 2021

Science of The Total Environment

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With the expanding nanotechnology, nanoparticles (NPs) embedded products are used in the agricultural sector to improve soil fertility. Thus, two typical metal oxides NPs and their mixtures were applied in different doses to evaluate the impacts on soil microbes. CuO and ZnO NPs boosted soil microbial communities as reflected by the increased number of extractable bacterial or fungal groups and the enlarged values of Chao 1, ACE, and Shannon indices. Relative abundance of some susceptible taxa such as Sphingomonadales increased with increasing concentrations of ZnO NPs, while IMCC26256 decreased with increasing concentrations of CuO NPs. The mixture of CuO and ZnO NPs did not show more promotional effects on the soil bacterial community than the sum of individual effects. Increased soil organic carbon mitigated the impacts on soil bacteria for CuO NPs, but not for ZnO NPs. As micro-nutrients, the ions released from CuO and ZnO NPs had the potential to promote soil microbial community richness and diversity. However, the positive impacts of MNPs were impaired at dosage higher than 250 mg kg −1 soil (213.08 mg kg −1 soil of Cu, 162.73 mg kg −1 soil of Zn). Thus, the application dose and soil type other than the coexistence of MNPs should be considered before the wide use in increasing agricultural productivity.

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“…Eivazi et al [16] reported that as compared to the long-term exposure, the short-term exposure of silver nanoparticles reduced the enzyme activity in soil. Josko et al [17] reported that ZnO and CuO nanoparticles lead to increase in the number of bacteria, fungi along with soil dehydrogenase activity in different soils.…”

Section: Introductionmentioning

confidence: 99%

Ecotoxicity of as‐synthesised copper nanoparticles on soil bacteria

Sharma

Goyal

Chudasama

2021

IET Nanobiotechnology

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Release of metallic nanoparticles in soil poses a serious threat to the ecosystem as they can affect the soil properties and impose toxicity on soil microbes that are involved in the biogeochemical cycling. In this work, in vitro ecotoxicity of as-synthesised copper nanoparticles (CuNPs) on Bacillus subtilis (MTCC No. 441) and Pseudomonas fluorescens (MTCC No. 1749), which are commonly present in soil was investigated. Three sets of colloidal CuNPs with identical physical properties were synthesised by chemical reduction method with per batch yield of 0.2, 0.3 and 0.4 gm. Toxicity of CuNPs against these soil bacteria was investigated by MIC (minimum inhibitory concentration), MBC (minimum bactericidal concentration), cytoplasmic leakage and ROS (reactive oxygen species) assay. MIC of CuNPs were in the range of 35-60 µg/ml and 35-55 µg/ml for B. subtilis and P. fluorescens respectively, while their MBC ranged from 40-70 µg/ml and 40-60 µg/ml respectively. MIC and MBC tests reveal that Gram-negative P. fluorescens was more sensitive to CuNPs as compared to Gram positive B. subtilis mainly due to the differences in their cell wall structure and composition. CuNPs with smaller hydrodynamic size (11.34 nm) were highly toxic as revealed by MIC, MBC tests, cytoplasmic leakage and ROS assays, which may be due to the higher active surface area of CuNPs and greater membrane penetration. Leakage of cytoplasmic components and generation of extracellular oxidative stress by reactive oxygen species (ROS) causes cell death. The present study realizes in gauging the negative impact of inadvertent release of nanoparticles in the environment, however, in situ experiments to know its overall impact on soil health and soil microflora can help in finding solution to combat ecotoxicity of nanoparticles.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Long-term effect of ZnO and CuO nanoparticles on soil microbial community in different types of soil

Cited by 75 publications

References 49 publications

Toxicity of biogenic zinc oxide nanoparticles to soil organic matter cycling and their interaction with rice-straw derived biochar

Toxicity of biogenic zinc oxide nanoparticles to soil organic matter cycling and their interaction with rice-straw derived biochar

Application of low dosage of copper oxide and zinc oxide nanoparticles boosts bacterial and fungal communities in soil

Ecotoxicity of as‐synthesised copper nanoparticles on soil bacteria

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