首页> 外文期刊>Journal of Marine Biology >Antioxidant Efficiency of Platynereis spp. (Annelida, Nereididae) under Different pH Conditions at a CO2 Vent’s System
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Antioxidant Efficiency of Platynereis spp. (Annelida, Nereididae) under Different pH Conditions at a CO2 Vent’s System

机译:巯基SPP的抗氧化效率。 (Annelida,Nereididae)在CO2发泄系统的不同pH条件下

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Marine organisms are exposed to a pH decrease and to alteration of carbonate chemistry due to ocean acidification (OA) that can represent a source of oxidative stress which can significantly affect their antioxidant defence systems efficiency. The polychaetes Platynereis dumerilii and P. massiliensis (Nereididae) are key species of the benthic community to investigate the effect of OA due to their physiological and ecological characteristics that enable them to persist even in naturally acidified CO2 vent systems. Previous studies have documented the ability of these species to adapt to OA after short- and long-term translocation experiments, but no one has ever evaluated the basal antioxidant system efficiency comparing populations permanently living in habitat characterized by different pH conditions (acidified vs. control). Here, individuals of both Platynereis species, sampled from a natural CO2 vent system and from a nonventing “control” site in three different periods (April 2016, October 2016, and February 2017), were compared highlighting signals which suggested the ability of both species to acclimatize to high pCO2–low pH with slight seasonal variations of their antioxidant efficiency and the absence of disturbances of the oxidative status of Platynereis spp. tissues.
机译:由于海洋酸化(OA),海洋生物暴露于pH值下降,并改变碳酸盐化学,可以代表氧化应激源,这可以显着影响其抗氧化防御系统效率。 Polychaetes铂替代山脉Dumerilii和P.Massiliensis(Nereididae)是终身群落的关键物种,以研究OA由于其生理和生态特征,使它们甚至在天然酸化的CO2排气系统中持续存在。以前的研究记录了这些物种在短期和长期易位实验后适应OA的能力,但没有人评估基础抗氧化系统效率比较,比较永久性生活在栖息地具有不同pH条件的栖息地(酸化与控制)。这里,从自然二氧化碳排气系统中抽出的巯基物种的个体,并在三个不同时期(2016年10月,2016年10月和2017年10月)中取样,并从2016年4月和2017年到2017年2月)中进行了比较了突出显示这两种物种能力的信号通过抗氧化效率的轻微季节性变化和铂鼠标SPP的氧化地位的弱紊乱,均匀化高pCO2-L低pH值。组织。

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