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Host and Environmental Specificity in Bacterial Communities Associated to Two Highly Invasive Marine Species (Genus Asparagopsis)

2016-04Journal article Open access
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dc.contributor.authorAires, Tânia
dc.contributor.authorSerrão, Ester
dc.contributor.authorEngelen, Aschwin H.
dc.date.accessioned2017-04-07T15:56:44Z
dc.date.available2017-04-07T15:56:44Z
dc.date.issued2016-04
dc.description.abstractAs habitats change due to global and local pressures, population resilience, and adaptive processes depend not only on their gene pools but also on their associated bacteria communities. The hologenome can play a determinant role in adaptive evolution of higher organisms that rely on their bacterial associates for vital processes. In this study, we focus on the associated bacteria of the two most invasive seaweeds in southwest Iberia (coastal mainland) and nearby offshore Atlantic islands, Asparagopsis taxiformis and Asparagopsis armata. Bacterial communities were characterized using 16S rRNA barcoding through 454 next generation sequencing and exploratory shotgun metagenomics to provide functional insights and a backbone for future functional studies. The bacterial community composition was clearly different between the two species A. taxiformis and A. armata and between continental and island habitats. The latter was mainly due to higher abundances of Acidimicrobiales, Sphingomonadales, Xanthomonadales, Myxococcales, and Alteromonadales on the continent. Metabolic assignments for these groups contained a higher number of reads in functions related to oxidative stress and resistance to toxic compounds, more precisely heavy metals. These results are in agreement with their usual association with hydrocarbon degradation and heavy-metals detoxification. In contrast, A. taxiformis from islands contained more bacteria related to oligotrophic environments which might putatively play a role in mineralization of dissolved organic matter. The higher number of functional assignments found in the metagenomes of A. taxiformis collected from Cape Verde Islands suggest a higher contribution of bacteria to compensate nutrient limitation in oligotrophic environments. Our results show that Asparagopsis-associated bacterial communities have host-specificity and are modulated by environmental conditions. Whether this environmental effect reflects the host's selective requirements or the locally available bacteria remains to be addressed. However, the known functional capacities of these bacterial communities indicate their potential for eco-physiological functions that could be valuable for the host fitness.
dc.identifier.doi10.3389/fmicb.2016.00559
dc.identifier.issn1664-302X
dc.identifier.otherAUT: ESE00527;
dc.identifier.urihttp://hdl.handle.net/10400.1/9510
dc.language.isoeng
dc.peerreviewedyes
dc.relationConsequences of forest fragmentation and conditions for biological invasions: the case of Caribbean birds
dc.relationExtant or extinct tipping points - climate changes drive genetic diversity and dynamics of range edge populations as evolutionary hotspots
dc.relationDEMOGRAPHIC ASSESSMENT OF CONTEMPORARY BIOME DEGRADATION: PROVIDING MANAGEMENT AND RESTORATION TOOLS FOR CORAL, KELP AND SEAGRASS COMMUNITIES
dc.relationEvolutionary and Ecological responses of benthic marine foundation species across their range under global change
dc.relation.isbasedonWOS:000374470400001
dc.titleHost and Environmental Specificity in Bacterial Communities Associated to Two Highly Invasive Marine Species (Genus Asparagopsis)
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleConsequences of forest fragmentation and conditions for biological invasions: the case of Caribbean birds
oaire.awardTitleExtant or extinct tipping points - climate changes drive genetic diversity and dynamics of range edge populations as evolutionary hotspots
oaire.awardTitleDEMOGRAPHIC ASSESSMENT OF CONTEMPORARY BIOME DEGRADATION: PROVIDING MANAGEMENT AND RESTORATION TOOLS FOR CORAL, KELP AND SEAGRASS COMMUNITIES
oaire.awardTitleEvolutionary and Ecological responses of benthic marine foundation species across their range under global change
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/NETBIOME%2F0001%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/EXCL%2FAAG-GLO%2F0661%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F63703%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F107878%2F2015/PT
oaire.citation.endPage559
oaire.citation.startPage559
oaire.citation.titleFrontiers in Microbiology
oaire.citation.volume7
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
person.familyNameAires
person.familyNameSerrao
person.familyNameEngelen
person.givenNameTania
person.givenNameEster A.
person.givenNameAschwin
person.identifier282868
person.identifierC-6686-2012
person.identifier.ciencia-id4318-9E2C-32B9
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person.identifier.orcid0000-0002-1964-6819
person.identifier.orcid0000-0003-1316-658X
person.identifier.orcid0000-0002-9579-9606
person.identifier.ridM-8306-2013
person.identifier.ridM-3432-2013
person.identifier.scopus-author-id7004093604
person.identifier.scopus-author-id6701622770
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
rcaap.rightsopenAccess
rcaap.typearticle
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