Phenotypic and transcriptomic responses of the rotifer Brachionus koreanus by single and combined exposures to nano-sized microplastics and water-accommodated fractions of crude oil SCIE SCOPUS

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Title
Phenotypic and transcriptomic responses of the rotifer Brachionus koreanus by single and combined exposures to nano-sized microplastics and water-accommodated fractions of crude oil
Author(s)
Jeong, C.-B.; Kang, H.-M.; Byeon, E.; Kim, M.-S.; Ha, S.Y.; Kim, M.; Jung, J.-H.; Lee, J.-S.
KIOST Author(s)
Kang, Hye Min(강혜민)Ha, Sung Yong(하성용)Kim, Moonkoo(김문구)Jung, Jee Hyun(정지현)
Alternative Author(s)
강혜민; 하성용; 김문구; 정지현
Publication Year
2021-08-15
Abstract
Sorption of organic pollutants on microplastics can be an alternative uptake route for organic pollutants in aquatic organisms. To assess the combined effects of microplastics and organic pollutants, we employed phenotypic and transcriptomic analyses to the responses of the marine rotifer Brachionus koreanus to environmentally relevant concentrations of nano-sized microplastic (0.05 & micro;m), water-accommodated fractions of crude oil, and binary mixtures thereof. Our multigenerational in vivo experiments revealed more than additive effects on population growth of B. koreanus in response to combined exposure, while a single exposure to nano-sized microplastic did not induce observable adverse effects. Synergistic transcriptome deregulation was consistently associated with dramatically higher numbers of differentially expressed genes, and increased gene expression was associated with combined exposure. The majority of synergistic transcriptional alteration was related to metabolism and transcription, with impaired reproduction resulting from energetic reallocation toward adaptation. As further supported by chemistry analysis for polycyclic aromatic hydrocarbons sorption on microplastic, our findings imply that nano-sized microplastics can synergistically mediate the effects of organic pollutants in aquatic organisms.
ISSN
0304-3894
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41310
DOI
10.1016/j.jhazmat.2021.125703
Bibliographic Citation
JOURNAL OF HAZARDOUS MATERIALS, v.416, 2021
Publisher
ELSEVIER
Subject
OXIDATIVE STRESS; MONOGONONT ROTIFER; MARINE-ENVIRONMENT; GENE; EXPRESSION; TOXICITY; BIOACCUMULATION; ECOTOXICOLOGY; NANOPLASTICS; ACTIVATION
Keywords
Microplastics; Nanoplastics; Synergistic effect; Organic pollutant; Water-accommodated fraction (WAF)
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER
Related Researcher
Research Interests

Oil pollution,Oil fingerprinting,Persistent organic pollutants,유류오염,유지문분석기술,지속성유기오염물질

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