| Pb2+对柄海鞘代谢的影响 |
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| 引用本文： | 姜爱莉,于贞,王长海.Pb2+对柄海鞘代谢的影响[J].北京理工大学学报,2011,31(2):220-224. |
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| 作者姓名： | 姜爱莉 于贞 王长海 |
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| 作者单位： | 烟台大学,海洋学院,山东,烟台,264005 |
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| 基金项目： | 国家自然科学基金，山东省优秀中青年科学家科研奖励基金计划项目 |
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| 摘 要： | 应用半静态双箱式生物模型,考察Pb2+对柄海鞘代谢的影响.实验结果表明:0.01mg/L的Pb2+可促进柄海鞘的氨排泄,高浓度则使柄海鞘排氨率降低;0.01和0.05mg/L的Pb2+可以提高柄海鞘的清滤率,0.2mg/L则抑制其滤水作用;Pb2+对柄海鞘的氧氮比表现出与浓度相关的抑制作用.Pb2+影响柄海鞘几种代谢酶的活力,对碱性磷酸酶和Na+-K+-ATP酶活力均表现出与浓度相关的抑制作用;暴露于Pb2+溶液后,其SOD活力先降低后回升.以柄海鞘的代谢指标:氧氮比、碱性磷酸酶、Na+-K+-ATP酶和SOD活性作为海域污染的生物指标,具有一定的可行性.
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| 关 键 词： | 柄海鞘 代谢 碱性磷酸酶 Na+-K+-ATP酶 SOD Pb2+ |
| 收稿时间： | 4/8/2010 12:00:00 AM |
Effect of Pb2+ on Metabolism of the Ascidian Styela Clava |
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| JIANG Ai-li,YU Zhen and WANG Chang-hai.Effect of Pb2+ on Metabolism of the Ascidian Styela Clava[J].Journal of Beijing Institute of Technology(Natural Science Edition),2011,31(2):220-224. |
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| Authors: | JIANG Ai-li YU Zhen and WANG Chang-hai |
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| Institution: | JIANG Ai-li,YU Zhen,WANG Chang-hai(School of Ocean,Yantai University,Yantai,Shandong 264005,China) |
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| Abstract: | The effects of Pb2+ on the metabolism of Styela clava were investigated using semi-static two compartment model.The results show that Pb2+ could depress oxygen consumption rate of S.clava;0.01 mg/L Pb2+ could improve its ammonia excretion rates,while the restrained effect occurrs when S.clava lies in higher concentration.Pb2+ increases filtration rate of S.clava at the concentration of 0.01 and 0.05 mg/L,while it is controlled 0.2 mg/L.Restraining effect on O/N is correlative with Pb2+ concentration.Pb2+ co... |
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| Keywords: | SOD Pb2+ |
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