Microbial Community Analysis of a Coastal Salt Marsh Affected by the Deepwater Horizon Oil Spill

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dc.contributor.authorBeazley, Melanie J.
dc.contributor.authorMartinez, Robert J.
dc.contributor.authorRajan, Suja
dc.contributor.authorPowell, Jessica
dc.contributor.authorPiceno, Yvette M.
dc.contributor.authorTom, Lauren M.
dc.contributor.authorAndersen, Gary L.
dc.contributor.authorHazen, Terry C.
dc.contributor.authorVan Nostrand, Joy D.
dc.contributor.authorZhou, Jizhong
dc.contributor.authorMortazavi, Behzad
dc.contributor.authorSobecky, Patricia A.
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.contributor.otherUnited States Department of Energy (DOE)
dc.contributor.otherLawrence Berkeley National Laboratory
dc.contributor.otherUniversity of California Berkeley
dc.contributor.otherUniversity of Tennessee Knoxville
dc.contributor.otherUniversity of Oklahoma - Norman
dc.contributor.otherDauphin Island Sea Lab
dc.date.accessioned2023-10-02T15:18:21Z
dc.date.available2023-10-02T15:18:21Z
dc.date.issued2012
dc.description.abstractCoastal salt marshes are highly sensitive wetland ecosystems that can sustain long-term impacts from anthropogenic events such as oil spills. In this study, we examined the microbial communities of a Gulf of Mexico coastal salt marsh during and after the influx of petroleum hydrocarbons following the Deepwater Horizon oil spill. Total hydrocarbon concentrations in salt marsh sediments were highest in June and July 2010 and decreased in September 2010. Coupled PhyloChip and GeoChip microarray analyses demonstrated that the microbial community structure and function of the extant salt marsh hydrocarbon-degrading microbial populations changed significantly during the study. The relative richness and abundance of phyla containing previously described hydrocarbon-degrading bacteria (Proteobacteria, Bacteroidetes, and Actinobacteria) increased in hydrocarbon-contaminated sediments and then decreased once hydrocarbons were below detection. Firmicutes, however, continued to increase in relative richness and abundance after hydrocarbon concentrations were below detection. Functional genes involved in hydrocarbon degradation were enriched in hydrocarbon-contaminated sediments then declined significantly (p<0.05) once hydrocarbon concentrations decreased. A greater decrease in hydrocarbon concentrations among marsh grass sediments compared to inlet sediments (lacking marsh grass) suggests that the marsh rhizosphere microbial communities could also be contributing to hydrocarbon degradation. The results of this study provide a comprehensive view of microbial community structural and functional dynamics within perturbed salt marsh ecosystems.en_US
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.citationBeazley, M. J., Martinez, R. J., Rajan, S., Powell, J., Piceno, Y. M., Tom, L. M., Andersen, G. L., Hazen, T. C., Van Nostrand, J. D., Zhou, J., Mortazavi, B., & Sobecky, P. A. (2012). Microbial Community Analysis of a Coastal Salt Marsh Affected by the Deepwater Horizon Oil Spill. In M. R. Liles (Ed.), PLoS ONE (Vol. 7, Issue 7, p. e41305). Public Library of Science (PLoS). https://doi.org/10.1371/journal.pone.0041305
dc.identifier.doi10.1371/journal.pone.0041305
dc.identifier.orcidhttps://orcid.org/0000-0002-2536-9993
dc.identifier.orcidhttps://orcid.org/0000-0003-2014-0564
dc.identifier.orcidhttps://orcid.org/0000-0002-7915-4699
dc.identifier.orcidhttps://orcid.org/0000-0002-1912-1940
dc.identifier.orcidhttps://orcid.org/0000-0002-1618-9827
dc.identifier.orcidhttps://orcid.org/0000-0002-1912-1940
dc.identifier.orcidhttps://orcid.org/0000-0001-9548-6450
dc.identifier.orcidhttps://orcid.org/0000-0001-9973-7798
dc.identifier.orcidhttps://orcid.org/0000-0003-0836-4776
dc.identifier.urihttps://ir.ua.edu/handle/123456789/12620
dc.languageEnglish
dc.language.isoen_US
dc.publisherPLOS
dc.rights.licenseCC0 1.0 Universal (CC0 1.0) Public Domain Dedication
dc.rights.urihttps://creativecommons.org/publicdomain/zero/1.0/
dc.subjectGULF-OF-MEXICO
dc.subjectPOLYCYCLIC AROMATIC-HYDROCARBONS
dc.subjectPETROLEUM-HYDROCARBONS
dc.subjectDEGRADING BACTERIA
dc.subjectRIBOSOMAL-RNA
dc.subjectCRUDE-OIL
dc.subjectSEDIMENTS
dc.subjectDEGRADATION
dc.subjectBIODEGRADATION
dc.subjectPHYTOREMEDIATION
dc.subjectMultidisciplinary Sciences
dc.titleMicrobial Community Analysis of a Coastal Salt Marsh Affected by the Deepwater Horizon Oil Spillen_US
dc.typeArticle
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