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Zebrafish. 2013 Jun;10(2):194-8. doi: 10.1089/zeb.2012.0814. Epub 2013 Mar 26.

Colonizing the embryonic zebrafish gut with anaerobic bacteria derived from the human gastrointestinal tract.

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1
Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada.

Abstract

The zebrafish has become increasingly popular for microbiological research. It has been used as an infection model for a variety of pathogens, and is also emerging as a tool for studying interactions between a host and its resident microbial communities. The mouse microbiota has been transplanted into the zebrafish gut, but to our knowledge, there has been no attempt to introduce a bacterial community derived from the human gut. We explored two methods for colonizing the developing gut of 5-day-old germ-free zebrafish larvae with a defined anaerobic microbial community derived from a single human fecal sample. Both environmental exposure (static immersion) and direct microinjection into the gut resulted in the establishment of two species-Lactobacillus paracasei and Eubacterium limosum-from a community of 30 strains consisting of 22 anaerobic species. Of particular interest is E. limosum, which, as a strict anaerobe, represents a group of bacteria which until now have not been shown to colonize the developing zebrafish gut. Our success here indicates that further investigation of zebrafish as a tool for studying human gut microbial communities is warranted.

PMID:
23530761
DOI:
10.1089/zeb.2012.0814
[Indexed for MEDLINE]

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