Abstract
AbstractAnthropogenic activities, such as agriculture and industrial activities, are a main source of pollution contributing for the degradation of water quality and thus affecting the living organisms of aquatic systems. Copper is widely used at these practices being often released into the aquatic systems and may cause negative effects in its communities. This study proposes to determine the effects of copper in the antioxidant defence system of two size classes (big and small sizes) ofScrobicularia planaandCerastoderma edule, two marine bivalve species with commercial interest. It was observed the behaviour activity of the organisms during the exposure to copper sulphate (CS) and was determined the enzymatic activities of glutathione-S-transferases (GST), glutathione reductase (GR) and glutathione peroxidase (GPx) (both selenium-dependent (SeGPx) and total (tGPx)) in the muscle tissue (foot). Lipid peroxidation (LPO) was evaluated through thiobarbituric acid reactive substances (TBARS) measurement in the foot. Changes in the behaviour and enzymatic activity were observed. Lipid peroxidation was observed atC. eduleandS. planabig and small size classes, respectively, according to TBARS levels. The foot showed to be a good tissue to be used in biochemical analysis to detect the presence of toxicants.
Funder
Ministry of Education and Science | Fundação para a Ciência e a Tecnologia
Universidade de Coimbra
Publisher
Springer Science and Business Media LLC
Reference55 articles.
1. Ferreira-Cravo, M. et al. Antioxidant responses in different body regions of the polychaeta Laeonereis acuta (Nereididae) exposed to copper. Ecotoxicol. Environ. Saf. 72, 388–393, https://doi.org/10.1016/j.ecoenv.2008.07.003 (2009).
2. Bae, J. H. & Lim, S. Y. Heavy metals and biochemical composition of four sea bream species (Acanthopagrus schlegelii Bleeker, Pagrus major Temminck & Schlegel, Oplegnathus fasciatus KrØyer and Girella punctata Gray). Philippine Agric. Sci. 95, 185–191 (2012).
3. Maria, V. L. & Bebianno, M. J. Antioxidant and lipid peroxidation responses in Mytilus galloprovincialis exposed to mixtures of benzo(a)pyrene and copper. Comp.Biochem. Physiol. C 154, 56–63, https://doi.org/10.1016/j.cbpc.2011.02.004 (2011).
4. Mayor, D. J., Gray, N. B., Elver-Evans, J., Midwood, A. J. & Thornton, B. Metal Macrofauna Interactions Determine Microbial Community Structure and Function in Copper Contaminated Sediments. Plos One 8, e64940, https://doi.org/10.1371/journal.pone.0064940 (2013).
5. Ritter, A. et al. Copper stress induces biosynthesis of octadecanoid and eicosanoid oxygenated derivatives in the brown algal kelp Laminaria digitata. New Phytologist 180, 809–821, https://doi.org/10.1111/j.1469-8137.2008.02626.x (2008).
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