| 多环芳烃对卤虫无节幼体的光诱导毒性 |
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| 引用本文： | 王丽平,郑丙辉,孟伟.多环芳烃对卤虫无节幼体的光诱导毒性[J].环境科学学报,2008,28(4):748-754. |
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| 作者姓名： | 王丽平 郑丙辉 孟伟 |
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| 作者单位： | 中国环境科学研究院,河流与海岸带环境研究室,北京,100012 |
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| 基金项目： | 国家重点基础研究发展规划"973"项目(No.2002C13412409;2007CB407306) |
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| 摘 要： | 以卤虫Ⅱ～Ⅲ龄无节幼体为实验材料,在实验室内研究4种多环芳烃的光诱导毒性,比较了在有紫外(UV)和无UV照射条件下多环芳烃对卤虫幼体的存活和几种生理生化指标的影响.结果表明:UV辐射(UVA:476 μw·cm-2;UVB:6.5 μW·cm-2)明显提高了菲、蒽、荧蒽和芘对卤虫幼体的毒性,其24 h LC50值分别是无UV照射条件下LC50值的1/139、1/182、1/102和1/88.UV照射诱导了荧蒽对卤虫幼体的氧化损伤,过氧化物酶(POD)对荧蒽的光诱导毒性较超氧化物歧化酶(SOD)敏感;卤虫幼体的丙二醛(MDA)和Na ·K -ATPase是衡量荧蒽光诱导毒性的较敏感参数.
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| 关 键 词： | 多环芳烃 卤虫 光毒性 |
| 文章编号： | 0253-2468(2008)04-748-07 |
| 收稿时间： | 2007/5/23 0:00:00 |
| 修稿时间： | 2007年5月23日 |
Photo-induced toxicity of polycyclic aromatic hydrocarbons to the Brine Shrimp Artemia Salina nauplii |
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| WANG Liping,ZHENG Binghui and MENG Wei.Photo-induced toxicity of polycyclic aromatic hydrocarbons to the Brine Shrimp Artemia Salina nauplii[J].Acta Scientiae Circumstantiae,2008,28(4):748-754. |
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| Authors: | WANG Liping ZHENG Binghui and MENG Wei |
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| Institution: | River & Coastal Environment Research Center, Chinese Research Academy of Environmental Sciences, Beijing 100012,River & Coastal Environment Research Center, Chinese Research Academy of Environmental Sciences, Beijing 100012 and River & Coastal Environment Research Center, Chinese Research Academy of Environmental Sciences, Beijing 100012 |
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| Abstract: | The photo-induced toxicity of four polycyclic aromatic hydrocarbons (PAHs) to II~IIIinstar nauplii of Artemia Salina were tested. The results showed that the toxicity of phenanthrene, anthracene, fluoranthene and pyrene to A. salina nauplii was enhanced greatly under UVirradiation (UVA:476 W·cm-2; UVB:6.5 W·cm-2). Compared with the LC50 values in the absence of UVlight, the 24 h LC50 values of phenanthrene, anthracene, fluoranthene and pyrene to nauplii decreased to 1/139, 1/182, 1/102 and 1/88, respectively. UV illumination induced the oxidative impairment of fluoranthene to nauplii. Peroxidase (POD) was more sensitive than superoxide dismutase (SOD) to photo-induced toxicity of fluoranthene. Cell malondialdehyde (MDA) and Na+-K+-ATPase were good indexes to investigate the photo-induced toxicity of fluoranthene to A. salina nauplii. |
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| Keywords: | Polycyclic aromatic hydrocarbons Artemia Salina Phototoxicity |
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