DCO Project Summary

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Project Title
Microbiology of the Costa Rica Margin Subsurface
Start DateEnd Date
2011-01-01 2013-12-31
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To date, efforts to study the microbial communities in the marine subsurface biosphere have established the widespread occurrence of microbes in deeply buried sediments, revealed initial phylogenetic identities of microbial groups present, and provided some subsurface microbial cultures. We used 454-based tag sequencing of the 16S rRNA gene to characterize the microbial communities along depth profiles from two Costa Rica Margin subseafloor sites, located on the upper plate of a unique subduction zone system. This research will allow a more thorough image of the diversity within these subsurface samples than possible in previous subseafloor diversity studies. In particular, this deep diversity data will provide a greater perspective into previously proposed relationships of lithology and chemistry to the microbial diversity seen in subsurface sediments.

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