双酚 A 对蛋白核小球藻和斜生栅藻的急性和慢性毒性效应。
Acute and chronic toxic effects of bisphenol A on Chlorella pyrenoidosa and Scenedesmus obliquus.
机构信息
State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, People's Republic of China; School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China; Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology, Shanghai 200237, People's Republic of China.
出版信息
Environ Toxicol. 2014 Jun;29(6):714-22. doi: 10.1002/tox.21806. Epub 2012 Aug 10.
The acute and chronic toxic effects of Bisphenol A (BPA) on Chlorella pyrenoidosa (C. pyrenoidosa) and Scenedesmus obliquus (S. obliquus) were not well understood. The indoor experiments were carried out to observe and analyze the BPA-induced changes. Results of the observations showed that in acute tests BPA could significantly inhibit the growth of both algae, whereas chronic exposure hardly displayed similar trend. Superoxide dismutase (SOD) and Catalase (CAT) activities of both algae were promoted in all the treatments. Chlorophyll a synthesis of the two algae exhibited similar inhibitory trend in short-term treatments, and in chronic tests C. pyrenoidosa hardly resulted in visible influence, whereas in contrast, dose-dependent inhibitory effects of S. obliquus could be clearly observed. The experimental results indicated that the growth and Chlorophyll a syntheses of S.obliquus were more sensitive in response to BPA than that of C. pyrenoidosa, whereas for SOD andCAT activities, C. pyrenoidosa was more susceptible. This research provides a basic understanding of BPA toxicity to aquatic organisms.
双酚 A（BPA）对蛋白核小球藻（C. pyrenoidosa）和斜生栅藻（S. obliquus）的急性和慢性毒性效应尚未得到充分了解。进行了室内实验以观察和分析 BPA 引起的变化。观察结果表明，在急性试验中，BPA 可显著抑制两种藻类的生长，而慢性暴露则几乎没有表现出类似的趋势。两种藻类的超氧化物歧化酶（SOD）和过氧化氢酶（CAT）活性在所有处理中均得到促进。两种藻类的叶绿素 a 合成在短期处理中表现出相似的抑制趋势，而在慢性试验中，C. pyrenoidosa 几乎没有明显的影响，而相反，S. obliquus 则表现出明显的剂量依赖性抑制作用。实验结果表明，S.obliquus 的生长和叶绿素 a 合成对 BPA 的反应比 C. pyrenoidosa 更为敏感，而对于 SOD 和 CAT 活性，C. pyrenoidosa 则更为敏感。这项研究为了解 BPA 对水生生物的毒性提供了基础。
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