Impact of polyethylene terephthalate microfiber length on cellular responses in the Mediterranean mussel Mytilus galloprovincialis SCIE SCOPUS

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Title
Impact of polyethylene terephthalate microfiber length on cellular responses in the Mediterranean mussel Mytilus galloprovincialis
Author(s)
Choi, Jin Soo; Kim, Kanghee; Hong, Sang Hee; Park, Kyoung-Il; Park, June-Woo
KIOST Author(s)
Hong, Sang Hee(홍상희)
Alternative Author(s)
홍상희
Publication Year
2021-06
Abstract
Many studies have investigated the toxic effects of microplastics in marine organisms, but most studied nano-sized round microplastics at high concentrations and were not environmentally relevant. To understand the cellular toxicity of polyethylene terephthalate microfibers (PET-MFs) by length (50 and 100 μm), Mediterranean mussels (Mytilus galloprovincialis) were exposed to environmental (0.5 μg/L) and high (100 mg/L) MF concentrations for four days. Short PET-MFs accumulated in the lower intestinal organs of the mussels, but long PET-MFs were only observed in the upper intestinal organs. Both sized PET-MFs affected necrosis, DNA damage, reactive oxygen species, nitric oxide, and acetylcholinesterase (AChE) activity. Significant MF length-dependent effects occurred at environmentally relevant concentrations for DNA damage (100 μm MFs) and AChE activity (50 μm MFs). However, length effects disappeared at the higher exposure concentration. The current study provides potentially sensitive indicators to detect MFs exposure and the ecotoxicological implications of MFs in marine ecosystems. © 2021 Elsevier Ltd
ISSN
0141-1136
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41313
DOI
10.1016/j.marenvres.2021.105320
Bibliographic Citation
Marine Environmental Research, v.168, 2021
Publisher
Elsevier Ltd
Keywords
Cellular toxicity; Environmentally relevant concentration; Length; Mussel; PET-Microfibers
Type
Article
Language
English
Document Type
Article
Publisher
Elsevier Ltd
Related Researcher
Research Interests

microplastic pollution,POPs (persistent organic pollutant) pollution,미세플라스틱 오염,잔류성유기오염물질 오염

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