PUBLICATION

Single and combined effects of polyethylene microplastics and acetochlor on accumulation and intestinal toxicity of zebrafish (Danio rerio)

Authors
Wang, Y., Zhao, Y., Liang, H., Ma, C., Cui, N., Cao, H., Wei, W., Liu, Y.
ID
ZDB-PUB-230627-40
Date
2023
Source
Environmental pollution (Barking, Essex : 1987)   333: 122089 (Journal)
Registered Authors
Keywords
Combined toxicology, Gut microbiota, Immune gene, MPs, Zebrafish
MeSH Terms
  • Water Pollutants, Chemical*/metabolism
  • Water Pollutants, Chemical*/toxicity
  • Plastics/metabolism
  • Polyethylene/metabolism
  • Polyethylene/toxicity
  • Animals
  • Zebrafish/metabolism
  • Microplastics*/metabolism
  • Microplastics*/toxicity
PubMed
37364755 Full text @ Environ. Pollut.
Abstract
The co-exposure of microplastics (MPs) and other contaminants has aroused extensive attention, but the combined impacts of MPs and pesticides remain poorly understood. Acetochlor (ACT), a widely used chloroacetamide herbicide, has raised concerns for its potential bio-adverse effects. This study evaluated the influences of polyethylene microplastics (PE-MPs) for acute toxicity, bioaccumulation, and intestinal toxicity in zebrafish to ACT. We found that PE-MPs significantly enhanced ACT acute toxicity. Also, PE-MPs increased the accumulation of ACT in zebrafish and aggravate the oxidative stress damage of ACT in intestines. Exposure to PE-MPs or/and ACT causes mild damage to the gut tissue of zebrafish and altered gut microbial composition. In terms of gene transcription, ACT exposure triggered a significant increase in inflammatory response-related gene expressions in the intestines, while some pro-inflammatory factors were found to be inhibited by PE-MPs. This study provides a new perspective on the fate of MPs in the environment and on the assessment of the combined effects of MPs and pesticides on organisms.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping