Diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamanders

Abstract Diverse communities of symbiotic microbes inhabit the digestive systems of vertebrates and play a crucial role in animal health, and host diet plays a major role in shaping the composition and diversity of these communities. Here, we characterized diet and gut microbiome of fire salamander...

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Main Authors: Yu Wang, Hannah K. Smith, Evy Goossens, Lionel Hertzog, Molly C. Bletz, Dries Bonte, Kris Verheyen, Luc Lens, Miguel Vences, Frank Pasmans, An Martel
Format: Article
Language:English
Published: Nature Portfolio 2021-10-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-98995-6
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author Yu Wang
Hannah K. Smith
Evy Goossens
Lionel Hertzog
Molly C. Bletz
Dries Bonte
Kris Verheyen
Luc Lens
Miguel Vences
Frank Pasmans
An Martel
author_facet Yu Wang
Hannah K. Smith
Evy Goossens
Lionel Hertzog
Molly C. Bletz
Dries Bonte
Kris Verheyen
Luc Lens
Miguel Vences
Frank Pasmans
An Martel
author_sort Yu Wang
collection DOAJ
description Abstract Diverse communities of symbiotic microbes inhabit the digestive systems of vertebrates and play a crucial role in animal health, and host diet plays a major role in shaping the composition and diversity of these communities. Here, we characterized diet and gut microbiome of fire salamander populations from three Belgian forests. We carried out DNA metabarcoding on fecal samples, targeting eukaryotic 18S rRNA of potential dietary prey items, and bacterial 16S rRNA of the concomitant gut microbiome. Our results demonstrated an abundance of soft-bodied prey in the diet of fire salamanders, and a significant difference in the diet composition between males and females. This sex-dependent effect on diet was also reflected in the gut microbiome diversity, which is higher in males than female animals. Proximity to human activities was associated with increased intestinal pathogen loads. Collectively, the data supports a relationship between diet, environment and intestinal microbiome in fire salamanders, with potential health implications.
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spelling doaj.art-659ffeddce7e4f8396b7957f37485b902022-12-21T23:33:40ZengNature PortfolioScientific Reports2045-23222021-10-0111111110.1038/s41598-021-98995-6Diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamandersYu Wang0Hannah K. Smith1Evy Goossens2Lionel Hertzog3Molly C. Bletz4Dries Bonte5Kris Verheyen6Luc Lens7Miguel Vences8Frank Pasmans9An Martel10Wildlife Health Ghent, Department of Pathology, Bacteriology & Avian Diseases, Ghent UniversityWildlife Health Ghent, Department of Pathology, Bacteriology & Avian Diseases, Ghent UniversityDepartment of Pathology, Bacteriology & Avian Diseases, Ghent UniversityTerrestrial Ecology Unit (TEREC), Department of Biology, Ghent UniversityEvolutionary Biology Lab, Zoological Institute, Braunschweig University of TechnologyTerrestrial Ecology Unit (TEREC), Department of Biology, Ghent UniversityForest & Nature Lab, Department of Environment, Ghent UniversityTerrestrial Ecology Unit (TEREC), Department of Biology, Ghent UniversityEvolutionary Biology Lab, Zoological Institute, Braunschweig University of TechnologyWildlife Health Ghent, Department of Pathology, Bacteriology & Avian Diseases, Ghent UniversityWildlife Health Ghent, Department of Pathology, Bacteriology & Avian Diseases, Ghent UniversityAbstract Diverse communities of symbiotic microbes inhabit the digestive systems of vertebrates and play a crucial role in animal health, and host diet plays a major role in shaping the composition and diversity of these communities. Here, we characterized diet and gut microbiome of fire salamander populations from three Belgian forests. We carried out DNA metabarcoding on fecal samples, targeting eukaryotic 18S rRNA of potential dietary prey items, and bacterial 16S rRNA of the concomitant gut microbiome. Our results demonstrated an abundance of soft-bodied prey in the diet of fire salamanders, and a significant difference in the diet composition between males and females. This sex-dependent effect on diet was also reflected in the gut microbiome diversity, which is higher in males than female animals. Proximity to human activities was associated with increased intestinal pathogen loads. Collectively, the data supports a relationship between diet, environment and intestinal microbiome in fire salamanders, with potential health implications.https://doi.org/10.1038/s41598-021-98995-6
spellingShingle Yu Wang
Hannah K. Smith
Evy Goossens
Lionel Hertzog
Molly C. Bletz
Dries Bonte
Kris Verheyen
Luc Lens
Miguel Vences
Frank Pasmans
An Martel
Diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamanders
Scientific Reports
title Diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamanders
title_full Diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamanders
title_fullStr Diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamanders
title_full_unstemmed Diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamanders
title_short Diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamanders
title_sort diet diversity and environment determine the intestinal microbiome and bacterial pathogen load of fire salamanders
url https://doi.org/10.1038/s41598-021-98995-6
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