Copper sulphate impact on the antioxidant defence system of the marine bivalves Cerastoderma edule and Scrobicularia plana

Autor: Sérgio Marques, João Carlos Marques, Ana M. M. Gonçalves, Andreia F. Mesquita, Fernando Gonçalves
Rok vydání: 2019
Předmět:
0106 biological sciences
Cerastoderma edule
Copper Sulfate
Antioxidant
Thiobarbituric acid
medicine.medical_treatment
Glutathione reductase
lcsh:Medicine
010501 environmental sciences
Thiobarbituric Acid Reactive Substances
01 natural sciences
Antioxidants
Article
Lipid peroxidation
chemistry.chemical_compound
medicine
TBARS
Animals
14. Life underwater
Food science
lcsh:Science
Scrobicularia plana
0105 earth and related environmental sciences
chemistry.chemical_classification
Multidisciplinary
biology
010604 marine biology & hydrobiology
Glutathione peroxidase
lcsh:R
biology.organism_classification
Glutathione
6. Clean water
Bivalvia
Enzymes
Environmental sciences
Oxidative Stress
chemistry
13. Climate action
Environmental Pollutants
lcsh:Q
Lipid Peroxidation
Biomarkers
Environmental Monitoring
Zdroj: Scientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
Scientific Reports
ISSN: 2045-2322
DOI: 10.1038/s41598-019-52925-9
Popis: Anthropogenic 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) of Scrobicularia plana and Cerastoderma 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 at C. edule and S. plana big 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.
Databáze: OpenAIRE
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