巩宁;邵魁双;张钰昆;景德清;孙野青;

• 1:大连海事大学环境科学与工程学院
• 2:大连海事大学环境系统生物学研究所
• 3:国家海洋环境监测中心

摘要(Abstract)：

得克隆(Dechlorane Plus,DP)是一种在全世界范围内广泛使用的氯代阻燃剂,具有潜在的毒性效应。但目前已有的生态毒理学数据还十分有限。本文选择分布广泛的大型绿藻孔石莼(Ulva pertusa)作为研究对象,探讨不同浓度DP对孔石莼繁殖细胞转化及早期发育的影响。结果表明,低浓度(10-6~10-8mol·L-1)DP暴露不同程度地影响孔石莼繁殖细胞的形成、释放及附着,在试验浓度范围内呈现一定的剂量效应关系。与空白对照组相比,DP处理(10-6mol·L-1)分别使繁殖细胞的形成率、释放率和附着率显著降低了76.76%、46.26%和85.64%。在丝状幼体阶段,DP处理组(10-8和10-7mol·L-1)幼体体长分别比对照组显著减少了32.74%和38.98%。结果表明,DP暴露抑制了孔石莼的繁殖及早期发育。基于绿藻繁殖特性及早期发育的生物学指标对DP暴露较为敏感,能够为海洋环境的DP生物学效应研究提供数据。

关键词(KeyWords)： 得克隆;孔石莼;繁殖;早期发育

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划资助项目“浒苔着生机理与防控技术”(2016YFC1402104);; 国家自然科学基金(No.41301560)

作者(Author): 巩宁;邵魁双;张钰昆;景德清;孙野青;

Email:

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