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| Toxic effects of antimony on Caenorhabditis elegans in soils |
| Received:January 23, 2022 |
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| KeyWord:antimony;Na2HPO4-extracted antimony;Caenorhabditis elegans;toxic effect;soil |
| Author Name | Affiliation | E-mail | | SONG Zijie | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | DANG Xiuli | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China | dxl@syau.edu.cn | | ZHAO Long | State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | zhaolong1227@126.com | | HOU Hong | State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | WANG Xin | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | LÜ Haiyang | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | |
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| Abstract: |
| To determine the toxic effects of antimony(Sb)on soil invertebrate nematodes and the toxicity differences of Sb in different soils, the toxicity effects of Sb in the model organism Caenorhabditis elegans were assessed in three soils(Xi'an loessal soil, Yingtan red soil, and Jiangmen red soil)using growth, fertility, and reproduction as evaluation endpoints. The EC50(median effect concentration)values expressed in measured concentrations of total antimony for the growth of C. elegans were 1 138, 2 163 mg · kg-1, and 4 074 mg · kg-1, respectively. The EC50 values for C. elegans fertility were 849, 1 472 mg·kg-1, and 3 244 mg·kg-1, respectively. The EC50 values for C. elegans reproduction were 574, 836 mg·kg-1, and 1 470 mg·kg-1, respectively. The results showed that reproduction was a more sensitive evaluation endpoint than growth or fertility. The results of the correlation analysis showed that cation exchange capacity, organic matter, and amorphous iron oxide were the main factors affecting Sb toxicity in soil. The differences in EC50 values expressed as the concentrations of Na2HPO4-extracted Sb among the three soils decreased, indicating that the concentrations of Na2HPO4-extracted Sb could better explain the toxicity variations among different soils. |
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