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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Effect of temperature and salinity on acetylcholinesterase activity, a common pollution biomarker, in Mytilus sp. from the south-western Baltic Sea
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Effect of temperature and salinity on acetylcholinesterase activity, a common pollution biomarker, in Mytilus sp. from the south-western Baltic Sea

机译：温度和盐度对Mytilus sp。中常见的污染生物标志物乙酰胆碱酯酶活性的影响。从西南波罗的海

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摘要

Acetylcholinesterase (AChE) activity is a well established biomarker to monitor environmental pollution caused by neurotoxic compounds, such as organophosphorus and carbamate pesticides. The presence of these compounds results in a measurable inhibition of the enzyme. This has been shown for different marine species including blue mussels. Besides pollution, environmental variables may also have a direct or indirect effect on AChE activity, particularly in estuarine and brackish water environments. To assess the impact of abiotic factors on the AChE activity the seasonal course of gill AChE activity was followed in relation to temperature and salinity in Mytilus sp. collected from the south-western Baltic Sea. In addition, the effect of salinity on AChE activity was investigated in an experimental study. The AChE activity showed significant seasonal differences with maximum activities during the summer period and minimum activities in winter. These changes correlate significantly (p < 0.001) and positively with water temperature. The experimental exposure of Mytilus sp. to different salinities (5, 7, 16 or 20 psu) resulted in changes in the gill AChE activity. Empirical orthogonal function (EOF) analysis revealed that AChE activity was significantly and negatively correlated with salinity (p < 0.01). These results clearly demonstrate the need to consider the potential influence of temperature and salinity on AChE activity when applying this biomarker to monitor exposure to and effect of neurotoxic substances in estuarine and brackish water blue mussels.
机译：乙酰胆碱酯酶（AChE）活性是建立良好的生物标志物，用于监测由神经毒性化合物（例如有机磷和氨基甲酸酯农药）引起的环境污染。这些化合物的存在导致可测量的酶抑制。已经针对包括蓝贻贝在内的不同海洋物种证明了这一点。除污染外，环境变量还可能对AChE活性产生直接或间接影响，特别是在河口和微咸水环境中。为了评估非生物因素对AChE活性的影响，遵循My AChE活性相对于Mytilus sp。中温度和盐度的季节性变化过程。收集自西南波罗的海。另外，在实验研究中研究了盐度对AChE活性的影响。 AChE活动表现出明显的季节性差异，夏季活动最多，冬季活动最少。这些变化与水温显着相关（p <0.001），且呈正相关。 Mytilus sp。的实验暴露。不同盐度（5、7、16或20 psu）导致AChE活性发生变化。经验正交函数（EOF）分析显示，AChE活性与盐度呈显着负相关（p <0.01）。这些结果清楚地表明，在使用该生物标记物监测河口和微咸淡水贻贝对神经毒性物质的暴露和影响时，需要考虑温度和盐度对AChE活性的潜在影响。

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