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Waves of Berkeley Lab responders deploy omics to track Deepwater Horizon cleanup microbes
Date:6/21/2012

In the aftermath of the Deepwater Horizon oil spill in the Gulf of Mexico two years ago, various strategies were deployed to prevent 4.9 million barrels of light crude oil from fouling the waters and reaching the shores. A team of Lawrence Berkeley National Laboratory (Berkeley Lab) researchers found that nature also played a role in the dispersal process as marine microbial communities responded to the oil plume that made its way from the wellhead at a depth of 5,000 feet to the surface of the water.

"There was oil on the surface and oil below, but no oil in between," said microbial ecologist Terry Hazen, former head of the Ecology Department at Berkeley Lab and now holder of the University of Tennessee-Oak Ridge National Laboratory Governor's Chair. In a report published a few months after the oil spill, Hazen's team reported that the microbes in the water were partly responsible for the oil's disappearance. While several studies have since confirmed that various microbes played a role in the dispersal of the oil in the Gulf, understanding the composition of the microbial community and the roles of its members has not fully achieved until now.

To learn more about the microbial community's response to the oil spill, researchers led by Berkeley Lab senior scientist Janet Jansson availed themselves of the expertise and resources at two of the Lab's national user facilities, the U.S. Department of Energy Joint Genome Institute (DOE JGI) and the Advanced Light Source (ALS). The work done by the Lab's disaster response team demonstrated Ernest Lawrence's pioneering vision of team science. The findings, published in two separate articles, track a series of microbial species dominating the community in the waters at various time points to remove different fractions of the oil.

As reported in an article published online June 21, 2012 in The ISME Journal, the team describes using a combination of genomics techniques to study the way
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Contact: David Gilbert
degilbert@lbl.gov
924-296-5643
DOE/Joint Genome Institute
Source:Eurekalert

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