Investigations of Hg(II) and Pb(II) tolerance, removal and bioaccumulation and their effects on antioxidant enzymes on thermophilic Exiguobacterium profundum

dc.contributor.authorAkkoyun M.B.
dc.contributor.authorÖzdemir S.
dc.contributor.authorKılınç E.
dc.contributor.authorBirhanlı E.
dc.date.accessioned14.07.201910:50:10
dc.date.accessioned2019-07-16T20:42:31Z
dc.date.available14.07.201910:50:10
dc.date.available2019-07-16T20:42:31Z
dc.date.issued2019
dc.department[Belirlenecek]en_US
dc.description.abstractHg(II) and Pb(II) tolerance, removal, bioaccumulation and effects on antioxidant enzymes of thermophilic Exiguobacterium profundum were investigated. The results indicated that Hg(II) was more toxic than Pb(II) to E. profundum. E. profundum was also more tolerant in solid medium than in liquid medium for Pb(II) and Hg(II). The bacterial growth was not significantly influenced at 1.0 and 2.5 mg/L Pb(II) and Hg(II) for 24 h. The highest Hg(II) and Pb(II) bioaccumulation amounts were determined as 37.56 and 54.35 mg metal/dried bacteria, respectively. Bioaccumulation capacities of the cell membrane of E. profundum forHg(II) and Pb(II)were determined. The different concentrations of Pb(II) and Hg(II) enhanced the SOD and CAT enzymes. In addition, variations of the surface macrostructure and the functionality of E. profundum after the interaction with Hg(II) and Pb(II) were investigated by the scanning electron microscope (SEM) and the Fourier transform infrared spectroscopy (FT-IR), respectively. This investigation obviously showed that thermophilic E. profundum can also be applied for removal and recovery of toxic metals from industrial wastewater. Clearly, a further investigation should be utilized by thermophilic microorganisms. According to antioxidant enyzme activities, E. profundum can be also used as a bioindicator for the detection of toxic metal pollution in natural water samples. © 2019, © 2019 Taylor & Francis Group, LLC.en_US
dc.identifier.doi10.1080/10807039.2018.1562882en_US
dc.identifier.issn1080-7039
dc.identifier.scopus2-s2.0-85061067304en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://dx.doi.org/10.1080/10807039.2018.1562882
dc.identifier.urihttps://hdl.handle.net/20.500.12514/1126
dc.identifier.wosWOS:000538171300007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTaylor and Francis Inc.en_US
dc.relation.ispartofHuman and Ecological Risk Assessmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectantioxidant activityen_US
dc.subjectbioaccumulationen_US
dc.subjectExiguobacterium profundumen_US
dc.subjectthermophilicen_US
dc.subjecttoleranceen_US
dc.subjectToxic metalen_US
dc.titleInvestigations of Hg(II) and Pb(II) tolerance, removal and bioaccumulation and their effects on antioxidant enzymes on thermophilic Exiguobacterium profundumen_US
dc.typeArticleen_US

Dosyalar