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Effect of the UV filter, Benzophenone-3, on biomarkers of the yellow clam (Amarilladesma mactroides) under different pH conditions.
Marine Pollution Bulletin ( IF 5.8 ) Pub Date : 2020-07-09 , DOI: 10.1016/j.marpolbul.2020.111401
Fernanda Chaves Lopes 1 , Micheli Rosa de Castro 1 , Sergiane Caldas Barbosa 2 , Ednei Gilberto Primel 2 , Camila de Martinez Gaspar Martins 1
Affiliation  

This work aimed to investigate effects of the ocean contamination by the sunscreen Benzophenone-3 (BP3) and acidification, caused by CO2 enrichment, to the yellow clam, Amarilladesma mactroides. Biochemical biomarkers were analyzed in tissues (gills, digestive gland, and mantle) of clams exposed to the environmental concentration of 1 μg/L BP3, at seawater natural pH (pH 8.1) and at lower pH (pH 7.6). The tissues responded in different ways considering their physiological roles. In general, BP3 altered activity of the enzymes, glutathione-S-transferase (GST) and glutathione cysteine ligase (GCL); but mostly increased the level of glutathione (GSH). These effects were enhanced by acidification, without augmenting lipid peroxidation (LPO). Carbonic anhydrase activity (CA) increased after BP3 exposure in the digestive gland and decreased in the gills at pH 7.6, while Ca2+-ATPase activity was affected by acidification only. Changing levels of these enzymes can alter shell formation and affect the bivalve maintenance in impacted environments.



中文翻译:

紫外线过滤剂苯甲酮3在不同pH条件下对黄蛤(Amarilladesma mactroides)生物标志物的影响。

这项工作旨在调查防晒剂Benzophenone-3(BP3)对海洋的污染以及由CO 2富集引起的酸化对黄色蛤lam Amarilladesma mactroides的影响。。在海水自然pH(pH 8.1)和较低pH(pH 7.6)下,对环境浓度为1μg/ L BP3的蛤tissue的组织(g,消化腺和地幔)进行生化生物标记分析。考虑到它们的生理作用,组织以不同的方式反应。通常,BP3改变了酶的活性,即谷胱甘肽-S-转移酶(GST)和谷胱甘肽半胱氨酸连接酶(GCL)。但大多数情况下会增加谷胱甘肽(GSH)的水平。酸化可增强这些作用,而不会增加脂质过氧化(LPO)。暴露于消化腺中的BP3后,碳酸酐酶活性(CA)升高,而在pH 7.6的ill中降低,而Ca 2+-ATPase活性仅受酸化影响。这些酶水平的变化可以改变壳的形成,并在受影响的环境中影响双壳类动物的维持。

更新日期:2020-07-09
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