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Article: Chromate reduction by Bacillus megaterium TKW3 isolated from marine sediments

TitleChromate reduction by Bacillus megaterium TKW3 isolated from marine sediments
Authors
KeywordsBacillus Megaterium
Bioremediation
Chromate Reduction
Chromium
Metal Resistance
Selenium
Issue Date2005
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0959-3993
Citation
World Journal Of Microbiology And Biotechnology, 2005, v. 21 n. 3, p. 213-219 How to Cite?
AbstractBacillus megaterium strain TKW3 was isolated from multiple-metal- contaminated marine sediments of Tokwawan, Hong Kong SAR. This facultative aerobe utilized arabinose, mannitol, N-acetylglucosamine, maltose, caprate, citrate, butyrate or lactate as the sole source of carbon and energy for growth.B. megaterium TKW3 reduced highly toxic and soluble Cr6+ (as CrO 4 2- ) into almost non-toxic and insoluble Cr 3+ under aerobic conditions. Complete reduction of 0.20 mM Cr 6+ by B. megaterium TKW3 was achieved within 360 h. Initial Cr 6+ concentration below 0.90 mM or inoculum less than 107 cells ml-1 did not have significant effect on 6+ reduction, while the residue Cr6+ concentration was the lowest at 107 cells ml-1. Cr6+ reduction by this strain was inhibited by high levels of NaCl (55%). B. megaterium TKW3 was also resistant to other oxyanions including 0.34 mM Cr2 O 7 2- 0.32 mM AsO 4 3- , 0.58 mM SeO 3 2- and 0.53 mM SeO 4 2- , and reduced soluble Se4+ (as SeO 3 2- ) to insoluble red amorphous Se0. B. megaterium TKW3 might have potential application in bioremediation of Cr-laden sediments associated with other oxyanions. © Springer 2005.
Persistent Identifierhttp://hdl.handle.net/10722/178868
ISSN
2015 Impact Factor: 1.532
2015 SCImago Journal Rankings: 0.634
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheung, KHen_US
dc.contributor.authorGu, JDen_US
dc.date.accessioned2012-12-19T09:50:16Z-
dc.date.available2012-12-19T09:50:16Z-
dc.date.issued2005en_US
dc.identifier.citationWorld Journal Of Microbiology And Biotechnology, 2005, v. 21 n. 3, p. 213-219en_US
dc.identifier.issn0959-3993en_US
dc.identifier.urihttp://hdl.handle.net/10722/178868-
dc.description.abstractBacillus megaterium strain TKW3 was isolated from multiple-metal- contaminated marine sediments of Tokwawan, Hong Kong SAR. This facultative aerobe utilized arabinose, mannitol, N-acetylglucosamine, maltose, caprate, citrate, butyrate or lactate as the sole source of carbon and energy for growth.B. megaterium TKW3 reduced highly toxic and soluble Cr6+ (as CrO 4 2- ) into almost non-toxic and insoluble Cr 3+ under aerobic conditions. Complete reduction of 0.20 mM Cr 6+ by B. megaterium TKW3 was achieved within 360 h. Initial Cr 6+ concentration below 0.90 mM or inoculum less than 107 cells ml-1 did not have significant effect on 6+ reduction, while the residue Cr6+ concentration was the lowest at 107 cells ml-1. Cr6+ reduction by this strain was inhibited by high levels of NaCl (55%). B. megaterium TKW3 was also resistant to other oxyanions including 0.34 mM Cr2 O 7 2- 0.32 mM AsO 4 3- , 0.58 mM SeO 3 2- and 0.53 mM SeO 4 2- , and reduced soluble Se4+ (as SeO 3 2- ) to insoluble red amorphous Se0. B. megaterium TKW3 might have potential application in bioremediation of Cr-laden sediments associated with other oxyanions. © Springer 2005.en_US
dc.languageengen_US
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0959-3993en_US
dc.relation.ispartofWorld Journal of Microbiology and Biotechnologyen_US
dc.subjectBacillus Megateriumen_US
dc.subjectBioremediationen_US
dc.subjectChromate Reductionen_US
dc.subjectChromiumen_US
dc.subjectMetal Resistanceen_US
dc.subjectSeleniumen_US
dc.titleChromate reduction by Bacillus megaterium TKW3 isolated from marine sedimentsen_US
dc.typeArticleen_US
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_US
dc.identifier.authorityGu, JD=rp00701en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1007/s11274-004-3619-9en_US
dc.identifier.scopuseid_2-s2.0-15944415736en_US
dc.identifier.hkuros101257-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-15944415736&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume21en_US
dc.identifier.issue3en_US
dc.identifier.spage213en_US
dc.identifier.epage219en_US
dc.identifier.isiWOS:000230567100002-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridCheung, KH=7402406659en_US
dc.identifier.scopusauthoridGu, JD=7403129601en_US
dc.identifier.citeulike260621-

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