期刊
ENVIRONMENTAL POLLUTION
卷 180, 期 -, 页码 71-77出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2013.05.016
关键词
Glyphosate; Copper; Subacute toxicity; Eisenia fetida
资金
- National Natural Science Foundation of China [40930739, 41001342, 41125007]
- Scientific Innovation Research of College Graduate in Jiangsu province [CXZZ11_0541]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Glyphosate (GPS) and copper (Cu) are common pollutants in soils, and commonly co-exist. Due to the chemical structure of GPS, it can form complexes of heavy metals and interface their bioavailability in soil environment. In order to explore the interactions between GPS and Cu, subacute toxicity tests of Cu and GPS on soil invertebrate earthworms (Eisenia fetida) were conducted. The relative weight loss and whole-worm metal burdens increased significantly with the increasing exposure concentration of Cu, while the toxicity of GPS was insignificant. The joint toxicity data showed that the relative weight loss and the uptake of Cu, as well as the superoxide dismutase, catalase and malondialdehyde activities, were significantly alleviated in the present of GPS, which indicated that GPS could reduce the toxicity and bioavailability of Cu in the soil because of its strong chelating effects. (C) 2013 Elsevier Ltd. All rights reserved.
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