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Multitaxon activity profiling reveals differential microbial response to reduced seawater pH and oil pollution

2016-09Journal article Restricted access
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dc.contributor.authorCoelho, Francisco J. R. C.
dc.contributor.authorCleary, Daniel F. R.
dc.contributor.authorCosta, Rodrigo
dc.contributor.authorFerreira, Marina
dc.contributor.authorPolonia, Ana R. M.
dc.contributor.authorSilva, Artur M. S.
dc.contributor.authorSimoes, Mario M. Q.
dc.contributor.authorOliveira, Vanessa
dc.contributor.authorGomes, Newton C. M.
dc.date.accessioned2017-04-07T15:56:07Z
dc.date.available2017-04-07T15:56:07Z
dc.date.issued2016-09
dc.description.abstractThere is growing concern that predicted changes to global ocean chemistry will interact with anthropogenic pollution to significantly alter marine microbial composition and function. However, knowledge of the compounding effects of climate change stressors and anthropogenic pollution is limited. Here, we used 16S and 18S rRNA (cDNA)-based activity profiling to investigate the differential responses of selected microbial taxa to ocean acidification and oil hydrocarbon contamination under controlled laboratory conditions. Our results revealed that a lower relative abundance of sulphate-reducing bacteria (Desulfosarcina/Desulfococcus clade) due to an adverse effect of seawater acidification and oil hydrocarbon contamination (reduced pH-oil treatment) may be coupled to changes in sediment archaeal communities. In particular, we observed a pronounced compositional shift and marked reduction in the prevalence of otherwise abundant operational taxonomic units (OTUs) belonging to the archaeal Marine Benthic Group B and Marine Hydrothermal Vent Group (MHVG) in the reduced pH-oil treatment. Conversely, the abundance of several putative hydrocarbonoclastic fungal OTUs was higher in the reduced pH-oil treatment. Sediment hydrocarbon profiling, furthermore, revealed higher concentrations of several alkanes in the reduced pH-oil treatment, corroborating the functional implications of the structural changes to microbial community composition. Collectively, our results advance the understanding of the response of a complex microbial community to the interaction between reduced pH and anthropogenic pollution. In future acidified marine environments, oil hydrocarbon contamination may alter the typical mixotrophic and k-/r-strategist composition of surface sediment microbiomes towards a more heterotrophic state with lower doubling rates, thereby impairing the ability of the ecosystem to recover from acute oil contamination events.
dc.identifier.doi10.1111/mec.13779
dc.identifier.issn0962-1083
dc.identifier.urihttp://hdl.handle.net/10400.1/9318
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationFCOMP-01-0124-FEDER-008657
dc.relationGlobal climate change and pollution: a synergy designed for disaster?
dc.relationOrganic Chemistry, Natural Products and Food Stuffs
dc.relationEvaluation of the synergistic effects caused by global climate change and environmental pollution on bacterial plasmid diversity in marine demosponges inhabiting Portuguese estuaries: ecological and biotechnological implications.
dc.relation.isbasedonWOS:000383344400017
dc.titleMultitaxon activity profiling reveals differential microbial response to reduced seawater pH and oil pollution
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleGlobal climate change and pollution: a synergy designed for disaster?
oaire.awardTitleOrganic Chemistry, Natural Products and Food Stuffs
oaire.awardTitleEvaluation of the synergistic effects caused by global climate change and environmental pollution on bacterial plasmid diversity in marine demosponges inhabiting Portuguese estuaries: ecological and biotechnological implications.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAAC-CLI%2F107916%2F2008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAMB%2F50017%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F00062%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F92366%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F101919%2F2014/PT
oaire.citation.endPage4659
oaire.citation.issue18
oaire.citation.startPage4645
oaire.citation.titleMolecular Ecology
oaire.citation.volume25
oaire.fundingStream5876-PPCDTI
oaire.fundingStream5876
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamSFRH
oaire.fundingStreamFARH
person.familyNameda Silva Costa
person.givenNameRodrigo
person.identifier115920
person.identifier.ciencia-id5917-D500-D251
person.identifier.orcid0000-0002-5932-4101
person.identifier.ridN-7274-2013
person.identifier.scopus-author-id7203063627
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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