Biodegradation of crude oil and phenanthrene by heavy metal resistant Bacillus subtilis isolated from a multi-polluted industrial wastewater creek

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dc.contributor.authorOyetibo, G.O
dc.contributor.authorChien, M.F
dc.contributor.authorkeda-Ohtsubo, W
dc.contributor.authorSuzuk, H
dc.contributor.authorObayori, O.S
dc.contributor.authorAdebusoye, S.A
dc.contributor.authorIlori, M.O
dc.contributor.authorAmund, O.O
dc.contributor.authorEndo, O
dc.date.accessioned2017-06-07T17:03:23Z
dc.date.available2017-06-07T17:03:23Z
dc.date.issued2017-02
dc.descriptionFor full text click on http://www.sciencedirect.com/science/article/pii/S0964830517302494en_US
dc.description.abstractA critical bottleneck associated with bioremediation technology in multi-polluted environments is microbiostasis due to metal toxicity. Autochthonous Bacillus species that would harness a repertory of traits to catabolize hydrocarbons and simultaneously sequester heavy metals (HMs) is invaluable in the environment contaminated with divergent pollutants. Fourteen HM-resistant bacilli from polluted creek were characterized using phenotypic and molecular criteria, and studied for hydrocarbon degradation in chemically defined media amended with Co2þ and Ni2þ (5.0 mmol l 1 each). Phylogenetic analyses revealed distribution of the bacilli into three clades. Two dissimilar strains of Bacillus subtilis (M16K, and M19F) with 19.1% sequence divergence, exhibited excellent degradation of crude oil (>94.0%) with evidence of early degradation of isoprenoid hydrocarbons and concurrent metal removal 18 d postinoculation. Similarly, phenanthrene degradation (>85.0%), and corresponding metal detoxification occurred in 28 d axenic culture of the strains. Strain M16K and M19F were metabolically active in matrices containing HMs, degraded hydrocarbons and simultaneously removed HMs from the medium. To the best of our knowledge, this is the first report of metal-resistant Bacillus subtilis strains showing simultaneous degradation of hydrocarbons and detoxification of metals, particularly in the Sub-Saharan Africa. The bacilli could be useful as potential biological agents in effective bioremediation campaign for multi-polluted environments.en_US
dc.identifier.citationOyetibo, G. O., Chien, M. F., Ikeda-Ohtsubo, W., Suzuki, H., Obayori, O. S., Adebusoye, S. A.,M. Oi Ilori, O. O. Amund & Endo, G. (2017). Biodegradation of crude oil and phenanthrene by heavy metal resistant Bacillus subtilis isolated from a multi-polluted industrial wastewater creek. International Biodeterioration & Biodegradation, 120, 143-151.en_US
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0964830517302494
dc.identifier.urihttp://ir.unilag.edu.ng:8080/xmlui/handle/123456789/22
dc.language.isoenen_US
dc.publisherInternational Biodeterioration & Biodegradation (ELSEVIER)en_US
dc.subjectHeavy metalsen_US
dc.subjectCrude oilen_US
dc.subjectPhenanthreneen_US
dc.subjectHeavy metal-resistanten_US
dc.subjectBiodegradationen_US
dc.subjectMetal-biosequestrationen_US
dc.titleBiodegradation of crude oil and phenanthrene by heavy metal resistant Bacillus subtilis isolated from a multi-polluted industrial wastewater creeken_US
dc.title.alternativeBiodegradation of crude oil and phenanthrene by heavy metal resistant Bacillus subtilis isolated from a multi-polluted industrial wastewater creeken_US
dc.typeArticleen_US
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