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Effects of prolonged exposure to low pH on enzymatic and non-enzymatic antioxidants in Japanese Medaka (Oryzias latipes)
Effects of prolonged exposure to low pH on enzymatic and non-enzymatic antioxidants in Japanese Medaka (Oryzias latipes)
- Source :
- Science of The Total Environment. 568:26-32
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- Acidification in aquatic ecosystems is a major concern worldwide. In freshwater, although there are several publications reporting acute toxicity and adverse effects due to low pH, little is known about adverse effects on antioxidant mechanisms in fish after prolonged exposure. This study aimed to investigate how antioxidants are affected by raising larval Japanese Medaka ( Oryzias latipes ) in soft water at pH 5.5, 6.0, and 6.5. After 18 days of exposure, glutathione concentration and glutathione peroxidase activity in whole body homogenates increased as pH decreased, without changes in lipid peroxidation measured as thiobarbituric acid reactive substances. This study showed that prolonged exposure to low pH increased reactive oxygen species production and that fish cope with it by increasing levels of enzymatic and non-enzymatic antioxidants.
- Subjects :
- Fish Proteins
Male
0301 basic medicine
Time Factors
Environmental Engineering
Antioxidant
medicine.medical_treatment
Oryzias
Gene Expression
010501 environmental sciences
01 natural sciences
Antioxidants
Lipid peroxidation
03 medical and health sciences
chemistry.chemical_compound
medicine
TBARS
Animals
Environmental Chemistry
Food science
Toxicity Tests, Chronic
Waste Management and Disposal
0105 earth and related environmental sciences
chemistry.chemical_classification
Glutathione Peroxidase
biology
Glutathione peroxidase
Increased reactive oxygen species production
Japanese Medaka
Hydrogen-Ion Concentration
biology.organism_classification
Glutathione
Pollution
Acute toxicity
Oxidative Stress
030104 developmental biology
chemistry
Biochemistry
Female
Subjects
Details
- ISSN :
- 00489697
- Volume :
- 568
- Database :
- OpenAIRE
- Journal :
- Science of The Total Environment
- Accession number :
- edsair.doi.dedup.....ed4a988a49121c38d5a8a8c7d98df496
- Full Text :
- https://doi.org/10.1016/j.scitotenv.2016.05.179