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dc.contributor.authorSaarenheimo, Jatta
dc.contributor.authorAalto, Sanni L.
dc.contributor.authorRissanen, Antti J.
dc.contributor.authorTiirola, Marja
dc.date.accessioned2017-05-03T10:10:54Z
dc.date.available2017-05-03T10:10:54Z
dc.date.issued2017
dc.identifier.citationSaarenheimo, J., Aalto, S. L., Rissanen, A. J., & Tiirola, M. (2017). Microbial Community Response on Wastewater Discharge in Boreal Lake Sediments. <i>Frontiers in Microbiology</i>, <i>8</i>(April), Article 750. <a href="https://doi.org/10.3389/fmicb.2017.00750" target="_blank">https://doi.org/10.3389/fmicb.2017.00750</a>
dc.identifier.otherCONVID_26982719
dc.identifier.otherTUTKAID_73667
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/53765
dc.description.abstractDespite high performance, municipal wastewater treatment plants (WWTPs) still discharge significant amounts of organic material and nitrogen and even microbes into the receiving water bodies, altering physico-chemical conditions and microbial functions. In this study, we examined how nitrified wastewater affects the microbiology of boreal lake sediments. Microbial community compositions were assessed with next generation sequencing of the 16S rRNA gene, and a more detailed view on nitrogen transformation processes was gained with qPCR targeting on functional genes (nirS, nirK, nosZI , nosZII, amoAarchaea, and amoAbacteria). In both of the two studied lake sites, the microbial community composition differed significantly between control point and wastewater discharge point, and a gradual shift toward natural community composition was seen downstream following the wastewater gradient. SourceTracker analysis predicted that ∼2% of sediment microbes were of WWTP-origin on the study site where wastewater was freely mixed with the lake water, while when wastewater was specially discharged to the sediment surface, ∼6% of microbes originated from WWTP, but the wastewater-influenced area was more limited. In nitrogen transformation processes, the ratio between nitrifying archaea (AOA) and bacteria (AOB) was affected by wastewater effluent, as the AOA abundance decreased from the control point (AOA:AOB 28:1 in Keuruu, 11:1 in Petäjävesi) to the wastewater-influenced sampling points, where AOB dominated (AOA:AOB 1:2–1:15 in Keuruu, 1:3–1:19 in Petäjävesi). The study showed that wastewater can affect sediment microbial community through importing nutrients and organic material and altering habitat characteristics, but also through bringing wastewater-originated microbes to the sediment, and may thus have significant impact on the freshwater biogeochemistry, especially in the nutrient-poor boreal ecosystems.
dc.language.isoeng
dc.publisherFrontiers Research Foundation
dc.relation.ispartofseriesFrontiers in Microbiology
dc.subject.otherAOA
dc.subject.otherAOB
dc.subject.othercommunity composition
dc.subject.othernirS
dc.subject.othernirK
dc.subject.othernosZ
dc.titleMicrobial Community Response on Wastewater Discharge in Boreal Lake Sediments
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201705022144
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineYmpäristötiedefi
dc.contributor.oppiaineAquatic Sciencesen
dc.contributor.oppiaineEnvironmental Scienceen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-05-02T12:15:10Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange750
dc.relation.issn1664-302X
dc.relation.numberinseriesApril
dc.relation.volume8
dc.type.versionpublishedVersion
dc.rights.copyright© 2017 Saarenheimo, Aalto, Rissanen and Tiirola. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber615146
dc.relation.grantnumber615146
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/615146/EU//
dc.subject.ysodenitrifikaatio
dc.subject.ysonitrifikaatio
jyx.subject.urihttp://www.yso.fi/onto/yso/p12487
jyx.subject.urihttp://www.yso.fi/onto/yso/p12486
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.3389/fmicb.2017.00750
dc.relation.funderEuroopan komissiofi
dc.relation.funderEuropean Commissionen
jyx.fundingprogramEU:n 7. puiteohjelma (FP7)fi
jyx.fundingprogramFP7 (EU's 7th Framework Programme)en
jyx.fundinginformationThe work was supported by the funding of Academy of Finland project 260797, European Union project LIFE12 ENV/FI/597 (N-SINK) and European Research Council (ERC) CoG project 615146 for MT.


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© 2017 Saarenheimo, Aalto, Rissanen and Tiirola. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).
Except where otherwise noted, this item's license is described as © 2017 Saarenheimo, Aalto, Rissanen and Tiirola. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).