Contardo-Jara Valeska, Galanti Lucas N, Amé María V, Monferrán Magdalena V, Wunderlin Daniel A, Wiegand Claudia
Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Department of Inland Fisheries, Biochemical Regulation, Mueggelseedamm 301, 12587 Berlin, Germany.
Ecotoxicol Environ Saf. 2009 Oct;72(7):1871-80. doi: 10.1016/j.ecoenv.2009.07.001. Epub 2009 Jul 25.
The golden mussel Limnoperna fortunei was used as a biomonitor of environmental pollution in the Suquía River basin around Córdoba City (Argentina). The sampling sites along the river were chosen according to their increasing levels of pollutants (e.g. heavy metals) as well as biological oxygen demand (BOD) and chemical oxygen demand (COD). A water quality index (WQI) was constructed from the interaction of several normalized factors that affect the aquatic environment, such as the mentioned pollutants and physico-chemical characteristics of the sampling sites. Activity changes of biotransformation enzyme glutathione S-transferase (GST) and the antioxidant enzymes glutathione peroxidase (GPx), glutathione reductase (GR) and catalase (CAT), after exposure to pollutants, served as biomarkers. Membrane bound GST and antioxidant enzymes responded at the most polluted sampling site within 1 day showing increased activities lasting for 4 days. Further sampling was restricted due to no survival of the animals. Antioxidant enzymes GPx, GR and CAT were sensitive responding to the different pollution scenarios, showing good correlation to the chemical characterization.
金色贻贝（Limnoperna fortunei）被用作阿根廷科尔多瓦市周边苏基亚河流域环境污染的生物监测器。沿河的采样点是根据污染物（如重金属）以及生物需氧量（BOD）和化学需氧量（COD）水平的增加来选择的。水质指数（WQI）是由几个影响水生环境的标准化因素相互作用构建而成的，这些因素包括上述污染物以及采样点的物理化学特征。接触污染物后，生物转化酶谷胱甘肽S-转移酶（GST）以及抗氧化酶谷胱甘肽过氧化物酶（GPx）、谷胱甘肽还原酶（GR）和过氧化氢酶（CAT）的活性变化用作生物标志物。膜结合GST和抗氧化酶在受污染最严重的采样点1天内就有反应，活性增加持续4天。由于动物无法存活，进一步的采样受到限制。抗氧化酶GPx、GR和CAT对不同污染情况敏感，与化学特征显示出良好的相关性。
