Do climate change related factors modify the response of Mytilus galloprovincialis to lanthanum? The case of temperature rise. (November 2022)

• Record Type: Journal Article
• Authors: Andrade, Madalena; Soares, Amadeu M.V.M.; Solé, Montserrat; Pereira, Eduarda; Freitas, Rosa
• Is Part Of: Chemosphere. Volume 307:Part 2(2022)
• Publication Date: 2022-11
• Subjects: Warming -- e-waste -- Rare-earth elements -- Metabolic capacity -- Oxidative stress; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2022.135577
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Most of the electric and electronic waste is not recycled and the release of its components into the environment is expected, including the rare-earth element Lanthanum (La), which has already been reported in the aquatic systems. Furthermore, considering climate change factors such as the predicted increase in temperature, the susceptibility of aquatic organisms to these rare elements may be modified. In light of this, the present study aimed to evaluate the relevance of temperature on La-derived effects in the mussel Mytilus galloprovincialis . Several biomarkers and La bioaccumulation were assessed in organisms exposed to 0 (control) and 10 μg/L of La at two distinct temperatures (17 and 22 °C) for 28 days. Results showed that temperature did not influence La bioaccumulation in mussels. However, exposure to La resulted in a decreased metabolic capacity and an enhancement of biotransformation enzymes activity, as a possible defense behavior of mussels to avoid La accumulation and toxicity. Nevertheless, antioxidant defenses were also inhibited leading to increased lipid peroxidation (LPO) levels. Warming alone seemed to cause a metabolic shutdown seen as reduced enzyme activities and protein carbonylation (PC) levels. Simultaneous La exposure and temperature rise caused combined effects on mussels, as they accused metabolic depression, biotransformation defenses activation, antioxidant capacity reduction, and higher cellular damage. Overall, this study highlights the need to perform environmental risk assessment studies, by considering emerging contaminants exposures at relevant concentrations, both at present and forecasted climate change scenarios. Graphical abstract: Image 1 Highlights: Mussels accumulated La at the same extent regardless of ambient temperature. La inhibited antioxidant enzymes activity leading to cellular damage. Warming caused a metabolic shutdown with defense mechanisms being depressed. La and warming together led to combined effects on metabolic and antioxidant depression. Under a warming scenario La may compromise mussel's performance.