Ecotoxicological assessment of TiO2 byproducts on the earthworm Eisenia fetida

Bigorgne, Emilie; Foucaud, Laurent; Lapied, Emmanuel; Labille, Jérôme; Botta, Céline; Sirguey, Catherine; Falla, Jaı̈ro; Rose, Jérôme; Joner, Erik J.; Rodius, François; Nahmani, Johanne

doi:10.1016/j.envpol.2011.05.024

Cited by 63 publications

(28 citation statements)

References 52 publications

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“…In the tests, the initial decrease in SOD activity was supposed to be the consumption against the rising ROS with the trend in promotion of enzyme activity occurring at OTC addition rates from 0.1 to 0.5 mg kg −1 soil, suggesting the response of water spinach to adverse conditions. The minimum dose of OTC to activate SOD defence mechanism was observed, as in previous assays, which showed that the detoxification system was stimulated at a certain exposure concentration (Bigorgne et al 2011). POD and CAT perform the role of splitting hydrogen peroxide into water and oxygen as found frequently in fishes and plants in some studies (Verma and Dubey 2003;Woo et al 2009;Wang et al 2012).…”

Section: Acute Phytotoxicity Of Otcsupporting

confidence: 69%

Toxicity of OTC to Ipomoea aquatica Forsk. and to microorganisms in a long-term sewage-irrigated farmland soil

Chen

et al. 2016

Environ Sci Pollut Res

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Water spinach (Ipomoea aquatic Forsk.) was selected to investigate the effects of oxytetracycline (OTC) on the toxicity of soil contaminated by long-term sewage irrigation. After acute toxicity test in petri dish at nine different OTC-spiked levels for 48 h, the germination rate was found to be generally inhibited in all treatments treated with OTC but the root elongation and activities of several antioxidant enzymes, superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) were either forward or backward stimulated to varying extent. During a 60-day sub-chronic toxicity test by means of a pot experiment, activities of SOD, POD and CAT in both the leaf and root tissue at 25 mg OTC per kg soil (dry weight) and in root tissue at 1 mg OTC per kg soil (dry weight) were significantly different than those in other treatments, which also indicated the higher sensitivity of the root. The foliar photosynthetic rate, stomatal conductance and transpiration rate were all gradually inhibited in spite of elevated water use efficiency under the pressure of the different OTC concentrations, which were highly significant different at 10 mg OTC per kg soil (dry weight). Indices of soil microbial diversity at 4 mg OTC kg −1 soil were significantly different from those of the control, indicating the potential adverse effects of OTC to soil microorganisms. The results suggest that the introduction of OTC could damage both plants and soil microorganisms, and during sub-chronic incubation, the sensitivity of different indices generally followed the order of root tissue antioxidant enzyme activities, soil microbial diversity indices, leaf photosynthesis-related index and leaf tissue enzyme antioxidant activities. In addition, the application of livestock and poultry manure containing pollutants like OTC in farmland soil, especially if the soil has been contaminated before, should be taken more seriously in the context of the current pursuit of increased agricultural production.

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Section: Acute Phytotoxicity Of Otcsupporting

confidence: 69%

Toxicity of OTC to Ipomoea aquatica Forsk. and to microorganisms in a long-term sewage-irrigated farmland soil

Chen

et al. 2016

Environ Sci Pollut Res

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“…The toxicity of TiO 2 -NPs exposure at the concentration of 0.24 mg/L was detected in Daphnia magna, and the activity of an antioxidant enzyme superoxide dismutase increased in 1 mg/L TiO 2 -NPs exposed marine abalone [42,43]. A significant decrease of phagocytosis was observed starting from 0.1 mg/L in TiO 2 -NPs exposed earthworm Eisenia fetida [44]. Therefore, here we provided evidence to demonstrate that chronic exposure to small sizes of TiO 2 -NPs can induce the adverse effects on nematodes at predicted environmental relevant Fig.…”

Section: Figmentioning

confidence: 91%

Small sizes of TiO2-NPs exhibit adverse effects at predicted environmental relevant concentrations on nematodes in a modified chronic toxicity assay system

Wang

et al. 2012

Journal of Hazardous Materials

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“…Of note, data on the ecotoxicity of metal oxide NPs remain limited compared with those of other nanostructures, such as carbon-based, silver, and silica NPs. Among the metal oxides, nano-TiO 2 has been the most studied (Bigorgne et al 2011).…”

mentioning

confidence: 99%

Toxicity of ZnO Nanoparticles, ZnO Bulk, and ZnCl2 on Earthworms in a Spiked Natural Soil and Toxicological Effects of Leachates on Aquatic Organisms

García‐Gómez¹,

Babín²,

Obrador³

et al. 2014

Arch Environ Contam Toxicol

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The present study assessed the uptake and toxicity of ZnO nanoparticles (NPs), ZnO bulk, and ZnCl 2 salt in earthworms in spiked agricultural soils. In addition, the toxicity of aqueous extracts to Daphnia magna and Chlorella vulgaris was analyzed to determine the risk of these soils to the aquatic compartment. We then investigated the distribution of Zn in soil fractions to interpret the nature of toxicity. Neither mortality nor differences in earthworm body weight were observed compared with the control. The most sensitive end point was reproduction. ZnCl 2 was notably toxic in eliminating the production of cocoons. The effects induced by ZnO-NPs and bulk ZnO on fecundity were similar and lower than those of the salt. In contrast to ZnO bulk, ZnO-NPs adversely affected fertility. The internal concentrations of Zn in earthworms in the NP group were greater than those in the salt and bulk groups, although bioconcentration factors were consistently \1. No relationship was found between toxicity and internal Zn amounts in earthworms. The results from the sequential extraction of soil showed that ZnCl 2 displayed the highest availability compared with both ZnO. Zn distribution was consistent with the greatest toxicity showed by the salt but not with Zn body concentrations. The soil extracts from both ZnO-NPs and bulk ZnO did not show effects on aquatic organisms (Daphnia and algae) after short-term exposure. However, ZnCl 2 extracts (total and 0.45-lm filtered) were toxic to Daphnia.

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Ecotoxicological assessment of TiO2 byproducts on the earthworm Eisenia fetida

Cited by 63 publications

References 52 publications

Toxicity of OTC to Ipomoea aquatica Forsk. and to microorganisms in a long-term sewage-irrigated farmland soil

Toxicity of OTC to Ipomoea aquatica Forsk. and to microorganisms in a long-term sewage-irrigated farmland soil

Small sizes of TiO2-NPs exhibit adverse effects at predicted environmental relevant concentrations on nematodes in a modified chronic toxicity assay system

Toxicity of ZnO Nanoparticles, ZnO Bulk, and ZnCl2 on Earthworms in a Spiked Natural Soil and Toxicological Effects of Leachates on Aquatic Organisms

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