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Effects Of Environmental Temperature On The Gut Microbial Communities Of Tadpoles
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2016
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Source: Environ Microbiol, 18: 1561-1565
[PDF-387.07 KB]
Details:
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Journal Title:Environmental Microbiology
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Description:Numerous studies have investigated the effects of diet, phylogeny and immune status on the gut microbial communities of animals. Most of these studies are conducted on endotherms, especially mammals, which maintain constant body temperature in the face of environmental temperature variability. However, the majority of animals and vertebrates are ectotherms, which often experience fluctuations in body temperature as a result of their environment. While there have been several studies investigating the gut microbial diversity of ectotherms, we lack an understanding of how environmental temperature affects these communities. Here, we used high-throughput sequencing to inventory the gut microbial communities of tadpoles exposed to cool (18°C) or warm (28°C) temperature treatments. We found that temperature significantly impacted the community structure and membership of the tadpole gut. Specifically, tadpoles in the warm treatment exhibited higher abundances of the phylum Planctomycetes and the genus Mycobacterium. These results may be due to the direct effects of temperature, or mediated through changes in host physiology. Given that environmental temperatures are expected to increase due to global climate change, understanding the effects of temperature on the diversity and function of gut microbial communities is critical.
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Source:Environ Microbiol, 18: 1561-1565
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Rights Information:Accepted Manuscript
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