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Microplastics Exposure Causes Negligible Effects on the Oxidative Response Enzymes Glutathione Reductase and Peroxidase in the Oligochaete Tubifex tubifex
- Source :
- Toxics, Vol 8, Iss 1, p 14 (2020)
- Publication Year :
- 2020
- Publisher :
- MDPI AG, 2020.
-
Abstract
- Microplastics (MPs) are emerging pollutants, which are considered ubiquitous in aquatic ecosystems. The effects of MPs on aquatic biota are still poorly understood, and consequently, there is a need to understand the impacts that MPs may pose to organisms. In the present study, Tubifex tubifex, a freshwater oligochaete commonly used as a bioindicator of the aquatic environment, was exposed to fluorescent polyethylene microspheres (up to 10 µm in size) to test whether the oxidative stress status was affected. The mortality rate of T. tubifex, as well as the activities of the oxidative stress status biomarker enzymes glutathione reductase and peroxidase, were assessed. In terms of oxidative stress, no significant differences between the exposure organisms and the corresponding controls were detected. Even though the data suggest that polyethylene MPs and the selected concentrations did not pose a critical risk to T. tubifex, the previously reported tolerance of T. tubifex to environmental pollution should be taken into account and thus MPs as aquatic pollutants could still represent a threat to more sensitive oligochetes.
- Subjects :
- polyethylene
Microplastics
STRESS
Health, Toxicology and Mutagenesis
microplastic exposure
Glutathione reductase
peroxidase
Environmental pollution
010501 environmental sciences
lcsh:Chemical technology
Toxicology
medicine.disease_cause
Tubifex tubifex
01 natural sciences
TOXICITY
CADMIUM
tubifex tubifex
freshwater environments
medicine
oxidative stress
lcsh:TP1-1185
14. Life underwater
CERATOPHYLLUM-DEMERSUM
glutathione reductase
1172 Environmental sciences
0105 earth and related environmental sciences
Pollutant
Chemical Health and Safety
biology
aquatic oligochetes
Chemistry
INDUCTION
Aquatic ecosystem
010401 analytical chemistry
BIOACCUMULATION
MARINE-ENVIRONMENT
biology.organism_classification
mortality
Tubifex
LIPID-PEROXIDATION
6. Clean water
0104 chemical sciences
DAPHNIA-MAGNA
13. Climate action
Environmental chemistry
BIOTRANSFORMATION
microplastic
Oxidative stress
Subjects
Details
- ISSN :
- 23056304
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Toxics
- Accession number :
- edsair.doi.dedup.....e4200f35018c2ba4ae4fc4b949051064