Amphibian chytridiomycosis outbreak dynamics are linked with host skin bacterial community structure.
Amphibian chytridiomycosis outbreak dynamics are linked with host skin bacterial community structure.
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DOI:
10.1038/s41467-018-02967-w
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发表时间:
2018-02-15
影响因子:
16.6
通讯作者:
Harrison XA
中科院分区:
文献类型:
--
作者:
Bates KA;Clare FC;O'Hanlon S;Bosch J;Brookes L;Hopkins K;McLaughlin EJ;Daniel O;Garner TWJ;Fisher MC;Harrison XA
Host-associated microbes are vital for combatting infections and maintaining health. In amphibians, certain skin-associated bacteria inhibit the fungal pathogen Batrachochytrium dendrobatidis (Bd), yet our understanding of host microbial ecology and its role in disease outbreaks is limited. We sampled skin-associated bacteria and Bd from Pyrenean midwife toad populations exhibiting enzootic or epizootic disease dynamics. We demonstrate that bacterial communities differ between life stages with few shared taxa, indicative of restructuring at metamorphosis. We detected a significant effect of infection history on metamorph skin microbiota, with reduced bacterial diversity in epizootic populations and differences in community structure and predicted function. Genome sequencing of Bd isolates supports a single introduction to the Pyrenees and reveals no association between pathogen genetics and epidemiological trends. Our findings provide an ecologically relevant insight into the microbial ecology of amphibian skin and highlight the relative importance of host microbiota and pathogen genetics in predicting disease outcome. Amphibian skin microbe communities have been putatively associated with the severity of chytrid fungal disease. Here, the authors show that different types of disease dynamics (enzootic versus epizootic) are associated with different microbiota in the host populations.
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DOI:
10.1038/nri3535
发表时间:
2013-11
期刊:
Nature reviews. Immunology
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期刊:
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影响因子:
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期刊:
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