| Cr(VI)对脊尾白虾(Exopalaemon carinicauda)幼虾暴露和恢复期肝胰脏的SOD活性、MDA及MTs含量的影响 |
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| 引用本文： | 李磊,蒋玫,沈新强,王云龙,吴庆元,牛俊翔,许高鹏.Cr(VI)对脊尾白虾(Exopalaemon carinicauda)幼虾暴露和恢复期肝胰脏的SOD活性、MDA及MTs含量的影响[J].生态毒理学报,2014,9(6):1226-1231. |
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| 作者姓名： | 李磊 蒋玫 沈新强 王云龙 吴庆元 牛俊翔 许高鹏 |
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| 作者单位： | 中国水产科学研究院东海水产研究所，上海 200090;中国水产科学研究院东海水产研究所，上海 200090;中国水产科学研究院东海水产研究所，上海 200090;中国水产科学研究院东海水产研究所，上海 200090;上海海洋大学 海洋科学学院，上海 201306;上海海洋大学 海洋科学学院，上海 201306;上海海洋大学 海洋科学学院，上海 201307 |
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| 基金项目： | 上海市科学技术委员会项目(12231203403); 中国水产科学研究院基本科研业务费(2014A02XK01); 中央级公益性科研院所基本科研业务费专项(2014T06) |
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| 摘 要： | 为了探索水体中Cr(VI)对脊尾白虾(Exopalaemon carinicauda)的毒性效应,通过Cr(VI)的暴露(15 d)和清水恢复实验(15 d),研究了Cr(VI)对脊尾白虾肝胰脏的SOD活性、MDA及MTs含量的影响。结果表明,通过15 d的暴露,5 mg·L-1(高浓度)、0.5 mg·L-1(低浓度)实验组肝胰脏的SOD均显著高于对照组水平(p0.05),15 d的清水恢复后,两个浓度实验组均能够恢复到对照组水平(p0.05)。MDA在暴露阶段呈现持续上升的趋势,且在15 d后两个浓度实验组MDA的含量均显著高于对照组水平(p0.05),15 d的清水恢复后,5 mg·L-1实验组的MDA含量依然显著高于对照组水平(p0.05),0.5mg·L-1实验组的MDA含量基本恢复到对照组水平(p0.05)。通过15 d的暴露,两个浓度实验组MTs的含量均显著高于对照组水平(p0.05),15 d的清水恢复后,两个浓度实验组MTs的含量均能够恢复到对照组水平(p0.05)。
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| 关 键 词： | 脊尾白虾 六价铬 肝胰脏 毒理学指标 |
| 收稿时间： | 2014/7/15 0:00:00 |
| 修稿时间： | 2014/8/20 0:00:00 |
Effects of Cr(VI) Exposure and Recovery on the SOD Activities, Contents of MDA and MTs in Hepatopancreas Tissue of Juvenile Exopalaemon carinicauda |
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| Li Lei,Jiang Mei,Shen Xinqiang,Wang Yunlong,Wu Qingyuan,Niu Junxiang and Xu Gaopeng.Effects of Cr(VI) Exposure and Recovery on the SOD Activities, Contents of MDA and MTs in Hepatopancreas Tissue of Juvenile Exopalaemon carinicauda[J].Asian Journal of Ecotoxicology,2014,9(6):1226-1231. |
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| Authors: | Li Lei Jiang Mei Shen Xinqiang Wang Yunlong Wu Qingyuan Niu Junxiang and Xu Gaopeng |
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| Affiliation: | East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China;College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China |
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| Abstract: | In order to examine the effect of Cr(VI) exposure on physiological metabolism of marine biota, the present study analyzed antioxidant enzyme (SOD) activities, contents of lipid peroxidation levels (LPO) and metallothioneins (MTs) of juvenile rigid-tail prawn Exopalaemon carinicauda in hepatopancreas tissue. The experimental juvenile prawns were reared at low (0.5 mg?L-1) and high Cr(VI) (5 mg?L-1) concentrations in the first 15 d exposure experiment, respectively. Then, they were put in clean seawater for recovery in the next 15 d. The results show that SOD activities were significantly higher at two exposure groups than at the control group (p<0.05). By the end of 15d recovery period, SOD activities in two exposure treatments were similar to that at the control (p>0.05). The MDA concentration in hepatopancreas tissue at the low and high concentration treatments showed an increasing trend during the exposure period, and the MDA concentration at two treatment groups were significantly higher than that at the control group (p<0.05) at the end of 15 d exposure experiment. Through 15 d recovery, MDA concentrations at low concentration treatment showed obviously decreasing and had no differences with that at the control group (p>0.05). MDA concentrations at the high concentration treatments were still significantly higher than that at the control groups (p<0.05). The MTs concentrations at two treatment groups were significantly higher than that at the control group(p<0.05) at the end of 15 d exposure experiment, but MTs concentrations could recover to the value at the control group through 15 d recovery (p>0.05). |
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| Keywords: | Exopalaemon carinicauda chromium hepatopancreas toxicology parameter |
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