Potential environmental risks of nanopesticides: Application of Cu(OH)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiacloprid
Cu(OH)2 nanopesticides and organic insecticides are continuously applied to soil at a temporal interval, while knowledge about the impact of Cu(OH)2 nanopesticides on organic insecticides degradation is currently scarce, resulting in poorly comprehensive evaluation of the potential environmental ris...
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2019-08-01
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doaj-a52a1506306f4df39a7773b83e1b5ba22020-11-25T02:01:47ZengElsevierEnvironment International0160-41202019-08-011294250Potential environmental risks of nanopesticides: Application of Cu(OH)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiaclopridXiaoxia Zhang0Zhenlan Xu1Mansha Wu2Xiaoting Qian3Daohui Lin4Hangjun Zhang5Juan Tang6Tao Zeng7Weijun Yao8Juliane Filser9Lingxiangyu Li10Virender K. Sharma11Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaInstitute of Quality and Standard of Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, ChinaDepartment of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Environmental Science, Zhejiang University, Hangzhou 310058, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, ChinaCollege of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, ChinaCollege of Environment, Zhejiang University of Technology, Hangzhou 310014, ChinaDepartment of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaUFT-Centre for Environmental Research and Sustainable Technology, Department General and Theoretical Ecology, Faculty 2 (Biology/Chemistry), University of Bremen, Bremen 28359, GermanyDepartment of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China; Corresponding author.Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, College Station 77843, United StatesCu(OH)2 nanopesticides and organic insecticides are continuously applied to soil at a temporal interval, while knowledge about the impact of Cu(OH)2 nanopesticides on organic insecticides degradation is currently scarce, resulting in poorly comprehensive evaluation of the potential environmental risks of Cu(OH)2 nanopesticides. Herein, a commercial Cu(OH)2 nanopesticide formulation (NPF), the active ingredient of NPF (AI-NPF), the prepared Cu(OH)2 nanotubes (NT) with comparable morphology and size to AI-NPF, and CuSO4 were respectively applied to soil at normal doses (0.5, 5 and 50 mg/kg), followed by an application of neonicotinoid thiacloprid after an interval of 21 d, showing that NPF at doses of 5 and 50 mg/kg significantly (p < 0.05) mitigated thiacloprid degradation compared to control and CuSO4. Furthermore, AI-NPF was the primary component that contributed to the mitigation effect of NPF, which was also validated by the NT. Large differences in the degradation efficiency of thiacloprid in sterilized and unsterilized soils with Cu(OH)2 nanopesticides suggested that biodegradation was the primary process responsible for thiacloprid degradation, especially as chemical degradation was negligible. Besides a decrease of thiacloprid bioavailability due to adsorption by Cu(OH)2 nanopesticides, we demonstrated that Cu(OH)2 nanopesticides changed soil microbial communities, reduced nitrile hydratase activity and down-regulated thiacloprid-degradative nth gene abundance, which thus mitigated thiacloprid biodegradation. Clearly, this study shed light on the potential environmental risks of Cu(OH)2 nanopesticide. Keywords: Cu(OH)2 nanopesticide, Thiacloprid degradation, Adsorption, Microbial communities, Nitrile hydratase activity, Gene abundancehttp://www.sciencedirect.com/science/article/pii/S0160412019309705 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xiaoxia Zhang Zhenlan Xu Mansha Wu Xiaoting Qian Daohui Lin Hangjun Zhang Juan Tang Tao Zeng Weijun Yao Juliane Filser Lingxiangyu Li Virender K. Sharma |
spellingShingle |
Xiaoxia Zhang Zhenlan Xu Mansha Wu Xiaoting Qian Daohui Lin Hangjun Zhang Juan Tang Tao Zeng Weijun Yao Juliane Filser Lingxiangyu Li Virender K. Sharma Potential environmental risks of nanopesticides: Application of Cu(OH)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiacloprid Environment International |
author_facet |
Xiaoxia Zhang Zhenlan Xu Mansha Wu Xiaoting Qian Daohui Lin Hangjun Zhang Juan Tang Tao Zeng Weijun Yao Juliane Filser Lingxiangyu Li Virender K. Sharma |
author_sort |
Xiaoxia Zhang |
title |
Potential environmental risks of nanopesticides: Application of Cu(OH)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiacloprid |
title_short |
Potential environmental risks of nanopesticides: Application of Cu(OH)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiacloprid |
title_full |
Potential environmental risks of nanopesticides: Application of Cu(OH)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiacloprid |
title_fullStr |
Potential environmental risks of nanopesticides: Application of Cu(OH)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiacloprid |
title_full_unstemmed |
Potential environmental risks of nanopesticides: Application of Cu(OH)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiacloprid |
title_sort |
potential environmental risks of nanopesticides: application of cu(oh)2 nanopesticides to soil mitigates the degradation of neonicotinoid thiacloprid |
publisher |
Elsevier |
series |
Environment International |
issn |
0160-4120 |
publishDate |
2019-08-01 |
description |
Cu(OH)2 nanopesticides and organic insecticides are continuously applied to soil at a temporal interval, while knowledge about the impact of Cu(OH)2 nanopesticides on organic insecticides degradation is currently scarce, resulting in poorly comprehensive evaluation of the potential environmental risks of Cu(OH)2 nanopesticides. Herein, a commercial Cu(OH)2 nanopesticide formulation (NPF), the active ingredient of NPF (AI-NPF), the prepared Cu(OH)2 nanotubes (NT) with comparable morphology and size to AI-NPF, and CuSO4 were respectively applied to soil at normal doses (0.5, 5 and 50 mg/kg), followed by an application of neonicotinoid thiacloprid after an interval of 21 d, showing that NPF at doses of 5 and 50 mg/kg significantly (p < 0.05) mitigated thiacloprid degradation compared to control and CuSO4. Furthermore, AI-NPF was the primary component that contributed to the mitigation effect of NPF, which was also validated by the NT. Large differences in the degradation efficiency of thiacloprid in sterilized and unsterilized soils with Cu(OH)2 nanopesticides suggested that biodegradation was the primary process responsible for thiacloprid degradation, especially as chemical degradation was negligible. Besides a decrease of thiacloprid bioavailability due to adsorption by Cu(OH)2 nanopesticides, we demonstrated that Cu(OH)2 nanopesticides changed soil microbial communities, reduced nitrile hydratase activity and down-regulated thiacloprid-degradative nth gene abundance, which thus mitigated thiacloprid biodegradation. Clearly, this study shed light on the potential environmental risks of Cu(OH)2 nanopesticide. Keywords: Cu(OH)2 nanopesticide, Thiacloprid degradation, Adsorption, Microbial communities, Nitrile hydratase activity, Gene abundance |
url |
http://www.sciencedirect.com/science/article/pii/S0160412019309705 |
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