Journal
ENVIRONMENTAL POLLUTION
Volume 258, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2019.113666
Keywords
Strobilurin fungicide; Fluvo-aquic soil; Red clay; Black soil; Integrated biomarker response (IBR)
Categories
Funding
- National Key R&D Program of China [2016YFD0800202]
- National Natural Science Foundation of China [41771282, 41701279]
- Natural Science Foundation of Shandong Province, China [ZR2017MD005, ZR2017BB075]
- China Scholarship Council program
- Special Funds of Taishan Scholar of Shandong Province, China
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Fluoxastrobin is one of the most widely used strobilurin fungicides, however, application of the fungicides may result in soil residues leading to environmental damage including oxidative stress and damage to sentinel organisms (i.e. earthworms). While this has been demonstrated in artificial soil, the biochemical response of Eisenia fetida exposed to fluoxastrobin in natural soils is unclear. This study utilized three typical natural soils (fluvo-aquic soils, red clay, and black soils) to evaluate the biochemical response of Eisenia fetida exposed to fluoxastrobin (0.1, 1.0, 2.5 mg/kg) including the production of reactive oxygen species, impact on three enzyme activities, lipid peroxidation, and 8-hydroxydeoxyguanosine after a 4-week exposure. The effects of fluoxastrobin on Eisenia fetida in different soils were assessed using an integrated biomarker response (IBR). The findings may be possible to state that the toxic effects of fluoxastrobin in artificial cannot exactly represent that in natural soils. Specifically, the fluoxastrobin subchronic toxicity was highest in red clay and lowest in black soil among the three natural soils. Furthermore, the 8-OHdG content was more sensitive to fluoxastrobin in all six environmental indicators of the present study. (C) 2019 Elsevier Ltd. All rights reserved.
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