Metal tolerance and biosorption capacity of Bacillus circulans strain EB1

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dc.contributor.authorYilmaz, EI
dc.date.accessioned2024-04-24T16:18:54Z
dc.date.available2024-04-24T16:18:54Z
dc.date.issued2003
dc.departmentDicle Üniversitesien_US
dc.description.abstractA heavy-metal-resistant bacterium Bacillus sp., strain EB1 was isolated from heavy-metal-contaminated soil in the southeast region of Turkey. Based on 16S ribosomal DNA sequencing, the microorganism was closely related to Bacillus circulans. Minimal inhibitory concentrations of metals (MICs) for the bacterium were determined. Bacillus EB1 exhibited high MIC values for metals and a large spectrum of antibiotic resistance. The order of toxicity of the metals to the bacterium was Cd = Co > Cu > Ni > Zn > Mn in solid media. The effects of increasing metal concentrations to the growth rate were determined in order to obtain precise patterns of resistance in liquid cultures. From the results of heavy metal toxicity, inhibitory concentrations in solid media were higher than those in liquid media. Metal biosorption was determined during the course of growth. B. circulans strain EB1 was capable of removing 90% of Mn, 68% of Zn, 65% of Cu, 45% of Ni and 40% of Co during the active growth cycle with a specific biosorption capacity of 25, 22, 20, 13 and 12 mg/l, respectively. Since Bacillus cells could grow in the presence of significant concentrations of metals and due to high metal biosorption capacity in aerobic conditions, this bacterium may be potentially applicable in in situ bioremediation of heavy-metal-contaminated aqueous systems. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.en_US
dc.identifier.doi10.1016/S0923-2508(03)00116-5
dc.identifier.endpage415en_US
dc.identifier.issn0923-2508
dc.identifier.issue6en_US
dc.identifier.pmid12892847en_US
dc.identifier.scopus2-s2.0-0043209036en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage409en_US
dc.identifier.urihttps://doi.org/10.1016/S0923-2508(03)00116-5
dc.identifier.urihttps://hdl.handle.net/11468/16326
dc.identifier.volume154en_US
dc.identifier.wosWOS:000185313100004
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofResearch in Microbiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHeavy Metalsen_US
dc.subjectBacillus Circulansen_US
dc.subjectMetal Toleranceen_US
dc.subjectAntibiotic Resistanceen_US
dc.subjectBiosorptionen_US
dc.subject16s Rrna Geneen_US
dc.titleMetal tolerance and biosorption capacity of Bacillus circulans strain EB1en_US
dc.typeArticleen_US

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