Publication Details

Microbiome analysis and predicted relative metabolomic turnover suggest bacterial heme and selenium metabolism are altered in the gastrointestinal system of zebrafish (Danio rerio) exposed to the organochlorine dieldrin

ADAMOVSKÝ Ondřej, BISESI Joseph Jr. H., BOYDA Jonna, BUDINSKÁ Eva, CRAFT Serena L., GINN Pamela E., HUA Qing, KOZUCH Marianne, MARTYNIUK Christopher J., PERSICO Maria, SCHMIDT Jordan T., SMATANA Stanislav and VESPALCOVÁ Hana. Microbiome analysis and predicted relative metabolomic turnover suggest bacterial heme and selenium metabolism are altered in the gastrointestinal system of zebrafish (Danio rerio) exposed to the organochlorine dieldrin. Environmental Pollution, vol. 2021, no. 268, 2020, pp. 115715-115726. ISSN 1873-6424. Available from: https://www.sciencedirect.com/science/article/pii/S0269749120364046?casa_token=D-NvNb5oSOkAAAAA:TSekabQnMmwF-daj6ik3X3S1GHcD0DJnPcXtWzs4_hHCGfEXh0ZMGU1t_8Wyome1iZMN2kVeqw
Czech title
Mikrobiální sekvenování a predikce relativního metabolického obratu (PRMT) ukazuje poškození bakteriálního metabolismu hem biosyntézy a selenia v zažívacím traktu ryb druhu Danio rerio po vystavení chlorovanému pesticidu dieldrin
Type
journal article
Language
english
Authors
Adamovský Ondřej (SCI MUNI)
Bisesi Joseph Jr. H. (UFL)
Boyda Jonna (UFL)
Budinská Eva, Mgr., Ph.D. (SCI MUNI)
Craft Serena L. (UFL)
Ginn Pamela E. (UFL)
Hua Qing (UFL)
Kozuch Marianne (UFL)
Martyniuk Christopher J. (UFL)
Persico Maria (SCI MUNI)
Schmidt Jordan T. (UFL)
Smatana Stanislav, Ing. (DCSY FIT BUT)
Vespalcová Hana (SCI MUNI)
URL
Keywords

Microbiome, Pesticide, Aquatic, Ecotoxicology, Pathology

Abstract

Dietary exposure to chemicals can alter the diversity of microbiome communities and can lead to pathophysiological changes in the gastrointestinal system. The organochlorine pesticide dieldrin is a persistent environmental contaminant that bioaccumulates in fatty tissue of aquatic organisms. The objectives of this study were to determine whether environmentally-relevant doses of dieldrin altered gastrointestinal morphology and the microbiome of zebrafish. Adult zebrafish at ~4 months of age were fed a measured amount of feed containing either a solvent control or one of two doses of dieldrin (measured at 16, and 163.5 ng/g dry weight) for 4 months. Body burden levels of dieldrin in zebrafish at the end of the four-month exposure were 0.600.52 ng/g (background), 11.471.13 ng/g (low dose) and 18.321.32 ng/g (high dose) wet weight [meanstd]. Extensive histopathology at the whole organism level revealed that dieldrin exposure did not induce notable tissue pathology, including the gastrointestinal tract. A repeated measures mixed model revealed that, while fish gained weight over time, there were no dieldrin-specific effects on body mass. Fecal content was collected from the gastrointestinal tract of males and 16S rRNA sequencing conducted. Dieldrin at a dose of 16 ng/g reduced the abundance of Firmicutes, a phylum involved in energy resorption. At the level of class, there was a decrease in abundance of Clostridia and Betaproteobacteria, and an increase in Verrucomicrobiae species. We used predicted relative metabolomic turnover (PRMA) to predict how a shift in microbial community composition affects exchange of metabolites. Dieldrin was predicted to affect metabolic turnover of uroporphyrinogen I and coproporphyrinogen I [enzyme]cysteine, hydrogen selenide, selenite, and methyl-selenic acid in fish. These pathways are related to bacterial heme biosynthesis and selenium metabolism. Our study demonstrates that dietary exposures to dieldrin can alter microbiota composition, however the long-term consequences of such impacts are not well understood.

Published
2020
Pages
115715-115726
Journal
Environmental Pollution, vol. 2021, no. 268, ISSN 1873-6424
Publisher
Elsevier Science
DOI
UT WoS
000600560400034
EID Scopus
BibTeX
@ARTICLE{FITPUB12255,
   author = "Ond\v{r}ej Adamovsk\'{y} and H. Jr. Joseph Bisesi and Jonna Boyda and Eva Budinsk\'{a} and L. Serena Craft and E. Pamela Ginn and Qing Hua and Marianne Kozuch and J. Christopher Martyniuk and Maria Persico and T. Jordan Schmidt and Stanislav Smatana and Hana Vespalcov\'{a}",
   title = "Microbiome analysis and predicted relative metabolomic turnover suggest bacterial heme and selenium metabolism are altered in the gastrointestinal system of zebrafish (Danio rerio) exposed to the organochlorine dieldrin",
   pages = "115715--115726",
   journal = "Environmental Pollution",
   volume = 2021,
   number = 268,
   year = 2020,
   ISSN = "1873-6424",
   doi = "10.1016/j.envpol.2020.115715",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/12255"
}
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