PUBLICATION

Enantioselective bioaccumulation following exposure of adult zebrafish (Danio rerio) to epoxiconazole and its effects on metabolomic profile as well as genes expression

Authors
Wang, Y., Teng, M., Wang, D., Yan, J., Miao, J., Zhou, Z., Zhu, W.
ID
ZDB-PUB-170611-1
Date
2017
Source
Environmental pollution (Barking, Essex : 1987)   229: 264-271 (Journal)
Registered Authors
Keywords
(1)H NMR-based metabolomics, Enantioselective bioaccumulation, Epoxiconazole, Genes expression
MeSH Terms
  • Animals
  • Energy Metabolism
  • Epoxy Compounds/metabolism*
  • Epoxy Compounds/toxicity
  • Fungicides, Industrial/metabolism*
  • Fungicides, Industrial/toxicity
  • Gene Expression/drug effects
  • Magnetic Resonance Spectroscopy
  • Metabolome/drug effects
  • Metabolome/physiology
  • Metabolomics/methods
  • Triazoles/metabolism*
  • Triazoles/toxicity
  • Zebrafish/physiology*
PubMed
28601015 Full text @ Environ. Pollut.
CTD
28601015
Abstract
Although epoxiconazole is the worldwidely used fungicide, limited information is known about its toxic effects and bioaccumulation behavior in freshwater ecosystems. In this study, zebrafish were exposed to epoxiconazole at concentrations of 100 and 1000 μg L-1 for 21 d. 1H NMR-based metabolomics analysis showed that low- and high-dose epoxiconazole exposure resulted in two similar but not identical patterns for the change of endogenous metabolites related to energy, lipid and amino acid metabolism. The expression of genes associated with mitochondrial respiratory chain, ATP synthesis and fatty acid β-oxidation were further measured to explore the reason for the disturbed energy metabolism, finding epoxiconazole had an inhibition effect on the genes expression of the above ways. Significant enantioselectivity was observed with (+)-epoxiconazole enrichment in the bioaccumulation process. These results will be of great importance in understanding the toxic effects induced by epoxiconazole and provide important basis for its comprehensive environmental assessment.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping