Microplastics, microfibres and nanoplastics cause variable sub-lethal responses in mussels (Mytilus spp.)
- We compare the toxicity of microplastics, microfibres and nanoplastics on mussels. Mussels (Mytilus spp.) were exposed to 500 ng mL(-1) of 20 mu m polystyrene microplastics, 10 x 30 mu m polyamide microfibres or 50 nm polystyrene nanoplastics for 24 h or 7 days. Biomarkers of immune response, oxidative stress response, lysosomal destabilisation and genotoxic damage were measured in haemolymph, digestive gland and gills. Microplastics and microfibres were observed in the digestive glands, with significantly higher plastic concentrations after 7-days exposure (ANOVA, P < 0.05). Nanoplastics had a significant effect on hyalinocytegranulocyte ratios (ANOVA, P < 0.05), indicative of a heightened immune response. SOD activity was significantly increased followed 24 h exposure to plastics (two-way ANOVA, P < 0.05), but returned to normal levels after 7-days exposure. No evidence of lysosomal destabilisation or genotoxic damage was observed from any form of plastic. The study highlights how particle size is a key factor in plastic particulateWe compare the toxicity of microplastics, microfibres and nanoplastics on mussels. Mussels (Mytilus spp.) were exposed to 500 ng mL(-1) of 20 mu m polystyrene microplastics, 10 x 30 mu m polyamide microfibres or 50 nm polystyrene nanoplastics for 24 h or 7 days. Biomarkers of immune response, oxidative stress response, lysosomal destabilisation and genotoxic damage were measured in haemolymph, digestive gland and gills. Microplastics and microfibres were observed in the digestive glands, with significantly higher plastic concentrations after 7-days exposure (ANOVA, P < 0.05). Nanoplastics had a significant effect on hyalinocytegranulocyte ratios (ANOVA, P < 0.05), indicative of a heightened immune response. SOD activity was significantly increased followed 24 h exposure to plastics (two-way ANOVA, P < 0.05), but returned to normal levels after 7-days exposure. No evidence of lysosomal destabilisation or genotoxic damage was observed from any form of plastic. The study highlights how particle size is a key factor in plastic particulate toxicity.…
| Author details: | Matthew ColeORCiD, Corin Liddle, Giulia Consolandi, Claudia DragoORCiDGND, Cameron HirdORCiD, Penelope Kate LindequeORCiD, Tamara S. Galloway |
|---|---|
| DOI: | https://doi.org/10.1016/j.marpolbul.2020.111552 |
| ISSN: | 0025-326X |
| ISSN: | 1879-3363 |
| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/32861936 |
| Title of parent work (English): | Marine pollution bulletin : the international journal for marine environmental scientists, engineers, administrators, politicians and lawyers |
| Publisher: | Elsevier |
| Place of publishing: | Amsterdam |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2020/08/27 |
| Publication year: | 2020 |
| Release date: | 2023/12/11 |
| Tag: | Bivalve; Debris; Ecotoxicology; Exposure; Fibres; Litter; Plastic; Pollution; Shellfish |
| Volume: | 160 |
| Article number: | 111552 |
| Number of pages: | 10 |
| Funding institution: | UK Natural Environmental Research CouncilUK Research & Innovation; (UKRI)Natural Environment Research Council (NERC) [NE/L007010,; NE/L003988, NE/N006178]; Campus World; ERASMUS programme; Waitrose; Plastic Plan Fund; NERCUK Research & Innovation (UKRI)Natural; Environment Research Council (NERC) [NE/L003988/1] Funding Source: UKRI |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
| Peer review: | Referiert |
