其他题名Effects of seawater acidification and sulfamethoxazole exposure on the antioxidant enzyme activities and lipid peroxidation level of Trochus niloticus
张天宇1,2,3; 曲艺1,2,3; 张倩倩1,2
; 曹瑞文1,2,3; 赵建民1,2发表期刊海洋通报
ISSN1001-6392
2020
卷号39期号:5页码:594-600
关键词大马蹄螺海洋酸化磺胺甲恶唑氧化应激
研究领域Physiology
英文摘要In the present study, the combined effects of seawater acidification and sulfamethoxazole (SMX) exposure on the antioxidant responses of Trochus niloticus were investigated using a fully factorial experiment. The topshells were exposed to three SMX concentrations(0 ng/L, 100 ng/L and 1 000 ng/L) at two pH levels(8.1 and 7.6) for 28 days. For individuals in each treatment, the enzymatic activities of superoxidase dismutase(SOD), catalase(CAT) and glutathione-S-transferase(GST), glutathione(GSH) contents and lipid peroxidation(LPO) levels were measured. It was found that all antioxidant enzyme activities and GSH contents were increased significantly in topshells under independent exposure of seawater acidification and SMX. Under the combination of seawater acidification and SMX exposure, antioxidant enzyme activities(SOD, CAT and GST) and GSH content were inhibited in gills of the topshells, while significant increase of lipid peroxidation levels was observed in the combined treatments. These results indicated that severe oxidative stress could be caused by short-term exposure to seawater acidification and SMX in T. niloticus, which indicated reduced fitness and viability caused by these two environmental stressors.
中文摘要为探讨海水酸化和磺胺甲恶唑环境残留对珊瑚礁区生物的影响,本文以南海珊瑚礁区关键礁栖生物大马蹄螺(Trochus niloticus)为研究对象,探究了两种环境胁迫因素对大马蹄螺的氧化胁迫作用。分别采用两个pH水平(pH 8.1、 pH 7.6)和三个磺胺甲恶唑浓度水平(0 ng/L、100 ng/L和1 000 ng/L)单独和复合暴露28天,测定其对大马蹄螺鳃组织的超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和谷胱甘肽巯基转移酶(GST)活性以及谷胱甘肽(GSH)含量和脂质过氧化水平(LPO)的影响。结果发现:海水酸化和磺胺甲恶唑单独暴露能够导致大马蹄螺鳃组织出现不同程度的氧化应激现象,表现为抗氧化酶(CAT、SOD和GST)活性和谷胱甘肽含量的升高。在复合暴露条件下,大马蹄螺鳃组织的抗氧化酶(CAT、SOD和GST)活性和谷胱甘肽含量均受到不同程度的抑制,同时伴随着脂质过氧化水平的显著升高。这表明短期海水酸化和磺胺甲恶唑复合暴露可导致大马蹄螺鳃组织出现氧化损伤现象,进而可能对个体存活和种群繁衍造成负面影响。
文章类型Article
资助机构国家重点研发计划; 中国科学院青年创新促进会
收录类别CSCD
语种中文
CSCD记录号CSCD:6863844
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/30318
专题海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
作者单位1.中国科学院烟台海岸带研究所牟平海岸带环境综合试验站,山东烟台264117;
2.中国科学院烟台海岸带研究所海岸带生物资源高效利用研究与发展中心,山东烟台264003;
3.中国科学院大学,北京100049
推荐引用方式
GB/T 7714张天宇,曲艺,张倩倩,等. 海水酸化和磺胺甲恶唑复合暴露对大马蹄螺抗氧化酶活性和脂质过氧化的影响[J]. 海洋通报,2020,39(5):594-600.
APA张天宇,曲艺,张倩倩,曹瑞文,&赵建民.(2020).海水酸化和磺胺甲恶唑复合暴露对大马蹄螺抗氧化酶活性和脂质过氧化的影响.海洋通报,39(5),594-600.
MLA张天宇,et al."海水酸化和磺胺甲恶唑复合暴露对大马蹄螺抗氧化酶活性和脂质过氧化的影响".海洋通报 39.5(2020):594-600.
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