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Zhang H, Aspinall JV, Lv W, Zheng X, Zhang H, Li S, Zhang J, Bai N, Zhang Y, Wang X. Differences in kinetic metabolomics in Eisenia fetida under single and dual exposure of imidacloprid and dinotefuran at environmentally relevant concentrations. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126001. [PMID: 33992008 DOI: 10.1016/j.jhazmat.2021.126001] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/19/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Metabolomic responses of earthworms to neonicotinoids are important for understanding their molecular-level toxicity and assessing their ecological risks, but little is known until now. We investigated impact of imidacloprid (IMI, 52.6 ng/g) and dinotefuran (DIN, 52.5 ng/g) on Eisenia fetida metabolomics under single- and dual-compound exposure scenarios for one to four weeks. Dissimilar metabolites and anti-stress strategies were found for different neonicotinoids and exposure scenarios. Specifically, IMI exposure first increased myo-inositol and UDP-glucuronate associated with transmembrane absorption and transformation to IMI-urea, and then increased glutathione and fourteen amino acids (TCA cycle precursors) to resist stress and replenish energy. In contrast, worms exposed to DIN first prepared TCA cycle intermediates from glucosamine-6-phosphate and amino acids, suppressed urea cycle and DIN transformation, and then alleviated oxidative stress by increasing carnosine, nicotinate-D-ribonucleotide and nicotinamide-β-riboside. Dual exposure increased four eicosanoids by 1.6-1.9-fold, possibly associated with membrane lipid peroxidation; the amino acids consumed to balance the energy metabolism exhibited a wave-like pattern. This study first systematically revealed the compound/time/exposure scenario- dependent effects of trace neonicotinoids on earthworm metabolomics and advanced the understanding of their action modes. Neonicotinoid transformation was closely related to worms' metabolic profiles, providing important insights in contaminant fate in soil ecosystems.
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Affiliation(s)
- Haiyun Zhang
- Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Shanghai 201403, China
| | | | - Weiguang Lv
- Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Shanghai 201403, China.
| | - Xianqing Zheng
- Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Shanghai 201403, China
| | - Hanlin Zhang
- Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Shanghai 201403, China
| | - Shuangxi Li
- Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Shanghai 201403, China
| | - Juanqin Zhang
- Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Shanghai 201403, China
| | - Naling Bai
- Shanghai Academy of Agricultural Sciences, Shanghai 201403, China; Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, Shanghai 201403, China
| | - Yue Zhang
- Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Xilong Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
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