Combined toxicity of cadmium and lead on early life stages of the Pacific oyster, Crassostrea gigas
Xie, J.1,2,3; Yang, D.1,2,3; Sun, X.2; Cao, R.1,2,3; Chen, L.1,2,3; Wang, Q.1,2; Li, F.1; Ji, C.1; Wu, H.1; Cong, M.1; Zhao, J.1,2
2017
发表期刊ISJ-INVERTEBRATE SURVIVAL JOURNAL
ISSN1824-307X
卷号14页码:210-220
摘要Trace metals cause toxic effect on the early development period of marine animals, however only few studies address the toxic interactions of trace metals on bivalves. In the present study, the individual and combined toxicities of dissolved cadmium (Cd) and lead (Pb) on early life stages of the Pacific oyster Crassostrea gigas have been investigated. Embryotoxicity, larvae mortality and genotoxicity were measured under single and combined exposure of the two tested metals. For embryotoxicity, the median effective concentration (EC50) values for individual Cd, Pb and their mixture were of 272.2 mu g/L, 660.3 mu g/L and 373.1 mu g/L, respectively. The median lethal concentrations (LC50) for 96 h larval mortality were determined to be 353.3 mu g/L, 699.5 mu g/L and 205.5 mu g/L for individual Cd, Pb and their mixture, respectively. Moreover, the Marking-Dawson additive toxicity indices were 0.10 for embryogenesis and 1.40 for larval mortality indicating, respectively, an additive effect and a trend to synergism for the Cd and Pb combination. Furthermore, DNA strand breaks were observed in oyster embryos after individual Cd, Pb and their mixture exposure, and a significant positive correlation was demonstrated between embryotoxicity and genotoxicty. The current study suggests the toxicity of Cd is higher than that of Pb, and the Cd-Pb mixture is slightly more toxic than individual Cd or Pb to the Pacific oyster. These data will be helpful to predict the toxicity of metal mixtures, and provide biological criteria for the implementation of marine water quality standards to protect these marine organisms.
关键词Embryotoxicity Larval Mortality Genotoxicity Trace Metals Mixture Crassostrea Gigas
项目资助者Key Research Program of the Chinese Academy of Sciences(KZZD-EW-14) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA11020702) ; Natural Science Foundation of Shandong Province(JQ201310) ; Youth Innovation Promotion Association of CAS(2016196)
收录类别SCI
关键词[WOS]MYTILUS-GALLOPROVINCIALIS ; PARACENTROTUS-LIVIDUS ; HEAVY-METALS ; TRACE-METALS ; EMBRYONIC-DEVELOPMENT ; CIONA-INTESTINALIS ; QUALITY ASSESSMENT ; LARVAL BIOASSAYS ; SEA-URCHIN ; BOHAI SEA
文章类型Article
语种英语
WOS研究方向Immunology ; Zoology
WOS记录号WOS:000401030600014
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/22513
专题中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat,YIC, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Muping Coastal Environm Res Stn, Yantai, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Xie, J.,Yang, D.,Sun, X.,et al. Combined toxicity of cadmium and lead on early life stages of the Pacific oyster, Crassostrea gigas[J]. ISJ-INVERTEBRATE SURVIVAL JOURNAL,2017,14:210-220.
APA Xie, J..,Yang, D..,Sun, X..,Cao, R..,Chen, L..,...&Zhao, J..(2017).Combined toxicity of cadmium and lead on early life stages of the Pacific oyster, Crassostrea gigas.ISJ-INVERTEBRATE SURVIVAL JOURNAL,14,210-220.
MLA Xie, J.,et al."Combined toxicity of cadmium and lead on early life stages of the Pacific oyster, Crassostrea gigas".ISJ-INVERTEBRATE SURVIVAL JOURNAL 14(2017):210-220.
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