彭颖;范灿鹏;廖伟;刘昕宇;武小燕;聂湘平;

• 1:暨南大学水生生物研究所
• 2:华南农业大学资源环境学院

摘要(Abstract)：

以实验室培养的大型溞为受试生物,进行了2,2’,4,4’-四溴联苯醚(BDE-47)对大型溞的48h急性毒性实验和21d慢性毒性实验,并研究了暴露在不同质量浓度和处理时间的BDE-47中,大型溞的抗氧化酶系中的超氧化物歧化酶(SOD)和谷胱甘肽硫转移酶(GST)的酶活性变化。结果表明,BDE-47对大型溞的48h的半致死浓度为1.04mg·L-1,属于高毒物质;在BDE-47慢性毒性实验低浓度处理组中,大型溞的体长及繁殖能力受到了抑制,而高浓度处理组中大型溞的体长及繁殖能力上升,其中第一次产仔数和产卵总数是表征BDE-47慢性毒性的最灵敏参数。随着BDE-47浓度的增加,大型溞SOD和GST活性均呈现出低浓度诱导高浓度抑制的现象。SOD和GST均表现出一定的敏感性,但相对SOD,GST对BDE-47暴露更为敏感。

关键词(KeyWords)： 2,2',4,4'-四溴联苯醚;大型溞;慢性毒性试验;超氧化物歧化酶;谷胱甘肽硫转移酶

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(40673062,40471118)

作者(Author): 彭颖;范灿鹏;廖伟;刘昕宇;武小燕;聂湘平;

Email:

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