Biodegradation of metoprolol in oxic and anoxic hyporheic zone sediments: unexpected effects on microbial communities

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Rutere, Cyrus (författare)

Biodegradation of metoprolol in oxic and anoxic hyporheic zone sediments : unexpected effects on microbial communities

Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

2021-08-02
Springer Science and Business Media LLC,2021
printrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:su-196960
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-196960URI
https://doi.org/10.1007/s00253-021-11466-wDOI

Kompletterande språkuppgifter

Språk:engelska
Sammanfattning på:engelska

Ingår i deldatabas

SwePubSwePub

Klassifikation

Ämneskategori:ref swepub-contenttype
Ämneskategori:art swepub-publicationtype

Anmärkningar

Metoprolol is widely used as a beta-blocker and considered an emerging contaminant of environmental concern due to pseudo persistence in wastewater effluents that poses a potential ecotoxicological threat to aquatic ecosystems. Microbial removal of metoprolol in the redox-delineated hyporheic zone (HZ) was investigated using streambed sediments supplemented with 15 or 150 mu M metoprolol in a laboratory microcosm incubation under oxic and anoxic conditions. Metoprolol disappeared from the aqueous phase under oxic and anoxic conditions within 65 and 72 days, respectively. Metoprolol was refed twice after initial depletion resulting in accelerated disappearance under both conditions. Metoprolol disappearance was marginal in sterile control microcosms with autoclaved sediment. Metoprolol was transformed mainly to metoprolol acid in oxic microcosms, while metoprolol acid and alpha-hydroxymetoprolol were formed in anoxic microcosms. Transformation products were transient and disappeared within 30 days under both conditions. Effects of metoprolol on the HZ bacterial community were evaluated using DNA- and RNA-based time-resolved amplicon Illumina MiSeq sequencing targeting the 16S rRNA gene and 16S rRNA, respectively, and were prominent on 16S rRNA rather than 16S rRNA gene level suggesting moderate metoprolol-induced activity-level changes. A positive impact of metoprolol on Sphingomonadaceae and Enterobacteriaceae under oxic and anoxic conditions, respectively, was observed. Nitrifiers were impaired by metoprolol under oxic and anoxic conditions. Collectively, our findings revealed high metoprolol biodegradation potentials in the hyporheic zone under contrasting redox conditions associated with changes in the active microbial communities, thus contributing to the attenuation of micropollutants.

Ämnesord och genrebeteckningar

TEKNIK OCH TEKNOLOGIER Miljöbioteknik hsv//swe
ENGINEERING AND TECHNOLOGY Environmental Biotechnology hsv//eng
Metoprolol
Hyporheic zone
Micropollutant transformation
16S rRNA microbiome analysis

Biuppslag (personer, institutioner, konferenser, titlar ...)

Posselt, MalteStockholms universitet,Institutionen för miljövetenskap(Swepub:su)mapo9821 (författare)
Ho, Adrian (författare)
Horn, Marcus A. (författare)
Stockholms universitetInstitutionen för miljövetenskap (creator_code:org_t)

Sammanhörande titlar

Ingår i:Applied Microbiology and Biotechnology: Springer Science and Business Media LLC105:14-15, s. 6103-61150175-75981432-0614

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Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Miljöbioteknik

Artiklar i publikationen: Applied Microbio ...

Av lärosätet: Stockholms universitet

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