Soil invertebrate toxicity and bioaccumulation of nano copper oxide and copper sulphate in soils, with and without biosolids amendment

Velicogna, Jessica R.; Schwertfeger, Dina; Jesmer, Alexander H.; Beer, Claudia; Kuo, Joner; DeRosa, Maria C.; Scroggins, Richard P.; Smith, M.K.; Princz, Juliska

doi:10.1016/j.ecoenv.2021.112222

Cited by 14 publications

(8 citation statements)

References 31 publications

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“…From these measured endpoints we derived population level effects for exposure to both Cu forms. Both Cu forms caused negative effects on the different stages, as in agreement with previous results ( Heckmann et al, 2011 , Velicogna et al, 2021 ). The results provide additional information to the standard OECD test, showing that Cu exerted its effect on juvenile mortality and cocoon production – which is not seen in the standard OECD test.…”

Section: Discussionsupporting

confidence: 93%

Full life cycle test with Eisenia fetida - copper oxide NM toxicity assessment

Scott-Fordsmand

Irizar

Amorim

2022

Ecotoxicology and Environmental Safety

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Section: Discussionsupporting

confidence: 93%

Full life cycle test with Eisenia fetida - copper oxide NM toxicity assessment

Scott-Fordsmand

Irizar

Amorim

2022

Ecotoxicology and Environmental Safety

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“…Our results show that the addition of CuSO 4 in combinations with HCl and starch produced high values of colonization, but they were not higher than those achieved by the application of HCl alone ( Table 2 ). Considering the environmental toxicity of CuSO 4 [ 32 ], we recommend using hydrochloric acid as a treatment option.…”

Section: Discussionmentioning

confidence: 99%

Application of a Posttreatment to Improve the Viability and Antifungal Activity of Trichoderma asperellum Biomass Obtained in a Bioreactor during Submerged Cultivation

Seņkovs

Dzierkale

Rimkus³

et al. 2022

Biology

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T. asperellum MSCL 309 was used in the study. T. asperellum was grown in the stirred bioreactor under submerged cultivation. The resulting biomass was filtered to obtain a thick biomass. The viability and antifungal activity of T. asperellum biomass samples were determined simultaneously by studying the colonization of the malt extract agar medium surface and its competitiveness with the plant pathogenic fungus Fusarium graminearum using in vitro dual culture experiments. Treatment with starch, alone or in combination with copper (II) sulphate and/or hydrochloric acid did not significantly affect fungal viability compared to control. An important factor in maintaining viability was the addition of hydrochloric acid, which significantly increased the storage life of biomass. In all post-treatments, F. graminearum was overgrown with T. asperellum in seven days, and accordingly, the larger the area occupied by T. asperellum, the smaller the area of F. graminearum colonization. Viability and antifungal activity of T. asperellum persisted throughout the experiment, at least for eight weeks. All the post-treatment methods we studied improved the viability and antifungal activity of Trichoderma, at least in terms of the area of the colonized surface. For the development of long-term viable and active T. asperellum preparations, we recommend the use of acidification of T. asperellum biomass obtained by submerged fermentation.

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“…At 3 mg Cu/kg, all endpoints were approximately 40% lower than the control and the overall significant difference was most pronounced, while no significant effect was visible anymore at 32 mg Cu/kg (Figure 5). The CuO‐NPs tend to agglomerate in soils with increasing NP concentration (Velicogna et al, 2021), with a distinct increase in CuO‐NP particle size from 15 to 50 mg/kg, indicating an enhanced agglomeration (Fischer et al, 2021a). This might explain why toxic effects in M30 soil did not occur anymore at 32 mg/kg.…”

Section: Discussionmentioning

confidence: 99%

“…In the present study, reproduction rates in the M30 soil corroborate the observation that, in contrast to CuCl 2 , CuO‐NP can negatively impact F. candida in clay‐rich soils in a nonlinear dose–response relationship (Fischer et al, 2021a) at field‐realistic test concentrations that are considered to be in the range of 0.5–20 mg Cu/kg (calculated fresh Cu input within one to five seasons [Fischer et al, 2021a]) or one season of application (Peixoto et al, 2021). The reason for this nonlinear dose–response relationship may be that the stronger agglomeration behavior of CuO‐NPs at test concentrations ≥50 mg Cu/kg (Fischer et al, 2021a; Velicogna et al, 2021) reduces their reactive surfaces. This may also explain why no toxic effects on soil invertebrates are typically observed at much higher concentrations of CuO‐NP (summarized by Fischer et al, 2021a) or other metal‐based NPs in the range of 1000–6400 mg/kg (Heckmann et al, 2011; Noordhoek et al, 2018; Pereira et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

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Clay Types Modulate the Toxicity of Low Concentrated Copper Oxide Nanoparticles Toward Springtails in Artificial Test Soils

Fischer

Talal

Schnee

et al. 2022

Enviro Toxic and Chemistry

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Copper oxide nanoparticles (CuO‐NPs) can be applied as an efficient alternative to conventional Cu in agriculture. Negative effects of CuO‐NPs on soil organisms were found, but only in clay‐rich loamy soils. It is hypothesized that clay–NP interactions are the origin of the observed toxic effects. In the present study, artificial Organisation for Economic Co‐operation and Development soils containing 30% of kaolin or montmorillonite as clay type were spiked with 1–32 mg Cu/kg of uncoated CuO‐NPs or CuCl2. We performed 28‐day reproduction tests with springtails of the species Folsomia candida and recorded the survival, reproduction, dry weight, and Cu content of adults. In a second experiment, molting frequency and the Cu content of exuviae, as well as the biochemical endpoints metallothionein and catalase (CAT) in springtails, were investigated. In the reproduction assay, negative effects on all endpoints were observed, but only in soils containing montmorillonite and mostly for CuO‐NPs. For the biochemical endpoints and Cu content of exuviae, effects were clearly distinct between Cu forms in montmorillonite soil, but a significant reduction compared to the control was only found for CAT activity. Therefore, the reduced CAT activity in CuO‐NP‐montmorillonite soil might be responsible for the observed toxicity, potentially resulting from reactive oxygen species formation overloading the antioxidant system. This process seems to be highly concentration‐dependent, because all endpoints investigated in reproduction and biochemical assays of CuO‐NP‐montmorillonite treatments showed a nonlinear dose–response relationship and were constantly reduced by approximately 40% at a field‐realistic concentration of 3 mg/kg, but not at 32 mg/kg. The results underline that clay–CuO‐NP interactions are crucial for their toxic behavior, especially at low, field‐realistic concentrations, which should be considered for risk assessment of CuO‐NPs. Environ Toxicol Chem 2022;41:2454–2465. © 2022 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

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Soil invertebrate toxicity and bioaccumulation of nano copper oxide and copper sulphate in soils, with and without biosolids amendment

Cited by 14 publications

References 31 publications

Full life cycle test with Eisenia fetida - copper oxide NM toxicity assessment

Full life cycle test with Eisenia fetida - copper oxide NM toxicity assessment

Application of a Posttreatment to Improve the Viability and Antifungal Activity of Trichoderma asperellum Biomass Obtained in a Bioreactor during Submerged Cultivation

Clay Types Modulate the Toxicity of Low Concentrated Copper Oxide Nanoparticles Toward Springtails in Artificial Test Soils

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