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Microbial community successional patterns in beach sands impacted by the Deepwater Horizon oil spill.

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Title: Microbial community successional patterns in beach sands impacted by the Deepwater Horizon oil spill.
Authors: Rodriguez-R, Luis M1, Overholt, Will A1, Hagan, Christopher2, Huettel, Markus2, Kostka, Joel E3, Konstantinidis, Konstantinos T4
Source: ISME Journal: Multidisciplinary Journal of Microbial Ecology. Sep2015, Vol. 9 Issue 9, p1928-1940. 13p.
Subjects: Biotic communities, Microbial ecology, Oil spills, Ribosomal RNA, Xenobiotics
Abstract: Although petroleum hydrocarbons discharged from the Deepwater Horizon (DWH) blowout were shown to have a pronounced impact on indigenous microbial communities in the Gulf of Mexico, effects on nearshore or coastal ecosystems remain understudied. This study investigated the successional patterns of functional and taxonomic diversity for over 1 year after the DWH oil was deposited on Pensacola Beach sands (FL, USA), using metagenomic and 16S rRNA gene amplicon techniques. Gamma- and Alphaproteobacteria were enriched in oiled sediments, in corroboration of previous studies. In contrast to previous studies, we observed an increase in the functional diversity of the community in response to oil contamination and a functional transition from generalist populations within 4 months after oil came ashore to specialists a year later, when oil was undetectable. At the latter time point, a typical beach community had reestablished that showed little to no evidence of oil hydrocarbon degradation potential, was enriched in archaeal taxa known to be sensitive to xenobiotics, but differed significantly from the community before the oil spill. Further, a clear succession pattern was observed, where early responders to oil contamination, likely degrading aliphatic hydrocarbons, were replaced after 3 months by populations capable of aromatic hydrocarbon decomposition. Collectively, our results advance the understanding of how natural benthic microbial communities respond to crude oil perturbation, supporting the specialization-disturbance hypothesis; that is, the expectation that disturbance favors generalists, while providing (microbial) indicator species and genes for the chemical evolution of oil hydrocarbons during degradation and weathering. [ABSTRACT FROM AUTHOR]
Copyright of ISME Journal: Multidisciplinary Journal of Microbial Ecology is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 108953467
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  Data: Microbial community successional patterns in beach sands impacted by the Deepwater Horizon oil spill.
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  Data: <searchLink fieldCode="AR" term="%22Rodriguez-R%2C+Luis+M%22">Rodriguez-R, Luis M</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Overholt%2C+Will+A%22">Overholt, Will A</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hagan%2C+Christopher%22">Hagan, Christopher</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Huettel%2C+Markus%22">Huettel, Markus</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kostka%2C+Joel+E%22">Kostka, Joel E</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Konstantinidis%2C+Konstantinos+T%22">Konstantinidis, Konstantinos T</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22ISME+Journal%3A+Multidisciplinary+Journal+of+Microbial+Ecology%22">ISME Journal: Multidisciplinary Journal of Microbial Ecology</searchLink>. Sep2015, Vol. 9 Issue 9, p1928-1940. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Biotic+communities%22">Biotic communities</searchLink><br /><searchLink fieldCode="DE" term="%22Microbial+ecology%22">Microbial ecology</searchLink><br /><searchLink fieldCode="DE" term="%22Oil+spills%22">Oil spills</searchLink><br /><searchLink fieldCode="DE" term="%22Ribosomal+RNA%22">Ribosomal RNA</searchLink><br /><searchLink fieldCode="DE" term="%22Xenobiotics%22">Xenobiotics</searchLink>
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  Label: Abstract
  Group: Ab
  Data: Although petroleum hydrocarbons discharged from the Deepwater Horizon (DWH) blowout were shown to have a pronounced impact on indigenous microbial communities in the Gulf of Mexico, effects on nearshore or coastal ecosystems remain understudied. This study investigated the successional patterns of functional and taxonomic diversity for over 1 year after the DWH oil was deposited on Pensacola Beach sands (FL, USA), using metagenomic and 16S rRNA gene amplicon techniques. Gamma- and Alphaproteobacteria were enriched in oiled sediments, in corroboration of previous studies. In contrast to previous studies, we observed an increase in the functional diversity of the community in response to oil contamination and a functional transition from generalist populations within 4 months after oil came ashore to specialists a year later, when oil was undetectable. At the latter time point, a typical beach community had reestablished that showed little to no evidence of oil hydrocarbon degradation potential, was enriched in archaeal taxa known to be sensitive to xenobiotics, but differed significantly from the community before the oil spill. Further, a clear succession pattern was observed, where early responders to oil contamination, likely degrading aliphatic hydrocarbons, were replaced after 3 months by populations capable of aromatic hydrocarbon decomposition. Collectively, our results advance the understanding of how natural benthic microbial communities respond to crude oil perturbation, supporting the specialization-disturbance hypothesis; that is, the expectation that disturbance favors generalists, while providing (microbial) indicator species and genes for the chemical evolution of oil hydrocarbons during degradation and weathering. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of ISME Journal: Multidisciplinary Journal of Microbial Ecology is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1038/ismej.2015.5
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        Text: English
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        PageCount: 13
        StartPage: 1928
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        Type: general
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      – SubjectFull: Oil spills
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      – SubjectFull: Ribosomal RNA
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      – SubjectFull: Xenobiotics
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      – TitleFull: Microbial community successional patterns in beach sands impacted by the Deepwater Horizon oil spill.
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              Text: Sep2015
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