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

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dc.contributor.authorMelanie J. Beazleyen_US
dc.contributor.authorRobert J. Martinezen_US
dc.contributor.authorSuja Rajanen_US
dc.contributor.authorJessica Powellen_US
dc.contributor.authorYvette M. Picenoen_US
dc.contributor.authorLauren M. Tomen_US
dc.contributor.authorGary L. Andersenen_US
dc.contributor.authorTerry C. Hazenen_US
dc.contributor.authorJoy D. Van Nostranden_US
dc.contributor.authorJizhong Zhouen_US
dc.contributor.authorBehzad Mortazavien_US
dc.contributor.authorPatricia A. Sobeckyen_US
dc.date.accessioned2015-01-23T17:17:35Z
dc.date.accessioned2016-03-30T15:35:34Z
dc.date.available2015-01-23T17:17:35Z
dc.date.available2016-03-30T15:35:34Z
dc.date.issued2012-07-18en_US
dc.descriptionen_US
dc.descriptionConceived and designed the experiments: MJB RJM BM PAS. Performed the experiments: MJB RJM SR JP YMP LMT JDVN. Analyzed the data: MJB RJM YMP LMT GLA TCH JDVN JZ PAS. Contributed reagents/materials/analysis tools: GLA TCH JZ BM PAS. Wrote the paper: MJB RJM PAS.en_US
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.description.peerreviewYesen_US
dc.description.peerreviewnoteshttp://www.plosone.org/static/editorial#peeren_US
dc.identifier.citationBeazley MJ, Martinez RJ, Rajan S, Powell J, Piceno YM, et al. (2012) Microbial Community Analysis of a Coastal Salt Marsh Affected by the Deepwater Horizon Oil Spill. PLoS ONE 7(7): e41305. doi:10.1371/journal.pone.0041305en_US
dc.identifier.doi10.1371/journal.pone.0041305en_US
dc.identifier.urihttp://hdl.handle.net/11244/14075
dc.language.isoen_USen_US
dc.publisherPLos Oneen_US
dc.relation.ispartofseriesPLoS ONE 7(7):e41305en_US
dc.relation.urihttp://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0041305en_US
dc.rightsAttribution 3.0 United Statesen_US
dc.rights.requestablefalseen_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/en_US
dc.subjectPLOSen_US
dc.subjectPublic Library of Scienceen_US
dc.subjectOpen Accessen_US
dc.subjectOpen-Accessen_US
dc.subjectScienceen_US
dc.subjectMedicineen_US
dc.subjectBiologyen_US
dc.subjectResearchen_US
dc.subjectPeer-reviewen_US
dc.subjectInclusiveen_US
dc.subjectInterdisciplinaryen_US
dc.subjectAnte-disciplinaryen_US
dc.subjectPhysicsen_US
dc.subjectChemistryen_US
dc.subjectEngineeringen_US
dc.titleMicrobial Community Analysis of a Coastal Salt Marsh Affected by the Deepwater Horizon Oil Spillen_US
dc.typeResearch Articleen_US

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