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首页> 外文期刊>Environmental research >Seawater acidification and emerging contaminants: A dangerous marriage for haemocytes of marine bivalves
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Seawater acidification and emerging contaminants: A dangerous marriage for haemocytes of marine bivalves

机译：海水酸化和新兴污染物：海洋双血管血浆的危险婚姻

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The combined effects of seawater acidification and the non-steroidal anti-inflammatory drug diclofenac on haemocyte parameters of the mussel Mytilus galloprovincialis and the clam Ruditapes philippinarum were investigated for the first time. Animals were maintained for one week (TO) in natural pH condition (8.1) and two reduced pH values (pH -0.4 units and pH -0.7 units). Bivalves were then exposed for additional 14 days (T1 and T2) to the three experimental pH values in both the presence and absence of environmentally realistic concentrations of diclofenac (0.05 and 0.50 mu g/L). To assess potential impairment in immunosurveillance, haemocyte parameters (total haemocyte count, haemocyte volume and diameter, Neutral Red uptake, haemocyte proliferation and lysozyme activity) were measured after 7, 14 and 21 days of exposure to differing pH value or pH/diclofenac combinations. In both species, pH affected the whole haemocyte data set at all sampling times, influencing most of the parameters measured at T0 and T1 in clams, and at T2 in mussels. Conversely, in both species diclofenac affected the overall haemocyte response at T2 only. However, in R. philippinarum a higher number of haemocyte parameters were significantly influenced even at T1. A significant interaction between pH and diclofenac was mainly evident in mussels, affecting haemocyte size and lysozyme activity at both T1 and T2. Overall, the results obtained demonstrated that the experimental conditions tested can alter markedly haemocyte parameters in marine bivalves.
机译：第一次研究了海水酸化和非甾体抗炎药Diclofencen对贻贝骨髓肠蠕动病毒和蛤蜊Ruditapes菲律宾的综合作用。将动物维持在天然pH条件（8.1）中（8.1）和两个降低的pH值（pH-0.4单位和pH-0.7单位）保持一周（至）。然后在双氯氟芬（0.05和0.0mu G / L）的存在和不存在的存在和不存在的情况下，将纤维纤维再暴露于三天（T1和T2）至三个实验pH值（0.05和0.05μg）。为了在暴露于不同pH值或pH /双氯芬酸组合的不同之后，测量在暴露于不同pH值或pH /双氯芬酸组合的不同之后测量血细胞参数（总血细胞计数，血细胞计数，血细胞数量和直径，中性红色摄取，血细胞增殖和溶菌酶活性）。在两个物种中，pH影响所有取样时间的全血细胞数据集，影响在蛤蜊T0和T1处测量的大部分参数，以及在贻贝中的T2。相反，在各种物种中，Diclofenac仅在T2的情况下影响总血液细胞响应。然而，在R.菲律宾中，即使在T1也会显着影响较多的血细胞参数。 pH和双氯芬酸之间的显着相互作用主要在贻贝中显而易见，影响T1和T2的血细胞尺寸和溶菌酶活性。总的来说，所获得的结果证明，测试的实验条件可以在海洋双纤维纤维纤维纤维中改变显着的血细胞参数。

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