Effects of environmental temperature on the gut microbial communities of tadpoles

Wiley - Tập 18 Số 5 - Trang 1561-1565 - 2016
Kevin D. Kohl1, Jeremiah M. Yahn2
1Department of Biological Sciences, Vanderbilt University, Nashville, TN 37232, USA
2Department of Zoology, University of Wisconsin, Madison, Madison, WI 53706 USA

Tóm tắt

SummaryNumerous 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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Wiley

Tập 18 Số 5

1561-1565

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