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Article: Biodegradation of benzene homologues in contaminated sediment of the East China Sea

TitleBiodegradation of benzene homologues in contaminated sediment of the East China Sea
Authors
KeywordsBacterial Community
Biodegradation
Btex
Compatible Solutes
Metabolic Pathway
Issue Date2012
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/biortech
Citation
Bioresource Technology, 2012, v. 124, p. 129-136 How to Cite?
AbstractThis study focused on acclimating a microbial enrichment to biodegrade benzene, toluene, ethylbenzene and xylenes (BTEX) in a wide range of salinity. The enrichment degraded 120. mg/L toluene within 5. d in the presence of 2. M NaCl or 150. mg/L toluene within 7. d in the presence of 1-1.5. M NaCl. PCR-DGGE (polymerase chain reaction-denatured gradient gel electrophoresis) profiles demonstrated the dominant species in the enrichments distributed between five main phyla: Gammaproteobacteria, Sphingobacteriia, Prolixibacter, Flavobacteriia and Firmicutes. The Marinobacter, Prolixibacter, Balneola, Zunongwangia, Halobacillus were the dominant genus. PCR detection of genotypes involved in bacterial BETX degradation revealed that the degradation pathways contained all the known initial oxidative attack of BTEX by monooxygenase and dioxygenase. And the subsequent ring fission was catalysed by catechol 1,2-dioxygenase and catechol 2,3-dioxygenase. Nuclear magnetic resonance (NMR) spectroscopy profiles showed that the bacterial consortium adjusted the osmotic pressure by ectoine and hydroxyectoine as compatible solutes to acclimate the different salinity conditions. © 2012 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/179308
ISSN
2015 Impact Factor: 4.917
2015 SCImago Journal Rankings: 2.303
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Hen_US
dc.contributor.authorZhang, Qen_US
dc.contributor.authorWang, XLen_US
dc.contributor.authorMa, XYen_US
dc.contributor.authorLin, KFen_US
dc.contributor.authorLiu, YDen_US
dc.contributor.authorGu, JDen_US
dc.contributor.authorLu, SGen_US
dc.contributor.authorShi, Len_US
dc.contributor.authorLu, Qen_US
dc.contributor.authorShen, TTen_US
dc.date.accessioned2012-12-19T09:54:01Z-
dc.date.available2012-12-19T09:54:01Z-
dc.date.issued2012en_US
dc.identifier.citationBioresource Technology, 2012, v. 124, p. 129-136en_US
dc.identifier.issn0960-8524en_US
dc.identifier.urihttp://hdl.handle.net/10722/179308-
dc.description.abstractThis study focused on acclimating a microbial enrichment to biodegrade benzene, toluene, ethylbenzene and xylenes (BTEX) in a wide range of salinity. The enrichment degraded 120. mg/L toluene within 5. d in the presence of 2. M NaCl or 150. mg/L toluene within 7. d in the presence of 1-1.5. M NaCl. PCR-DGGE (polymerase chain reaction-denatured gradient gel electrophoresis) profiles demonstrated the dominant species in the enrichments distributed between five main phyla: Gammaproteobacteria, Sphingobacteriia, Prolixibacter, Flavobacteriia and Firmicutes. The Marinobacter, Prolixibacter, Balneola, Zunongwangia, Halobacillus were the dominant genus. PCR detection of genotypes involved in bacterial BETX degradation revealed that the degradation pathways contained all the known initial oxidative attack of BTEX by monooxygenase and dioxygenase. And the subsequent ring fission was catalysed by catechol 1,2-dioxygenase and catechol 2,3-dioxygenase. Nuclear magnetic resonance (NMR) spectroscopy profiles showed that the bacterial consortium adjusted the osmotic pressure by ectoine and hydroxyectoine as compatible solutes to acclimate the different salinity conditions. © 2012 Elsevier Ltd.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/biortechen_US
dc.relation.ispartofBioresource Technologyen_US
dc.subjectBacterial Communityen_US
dc.subjectBiodegradationen_US
dc.subjectBtexen_US
dc.subjectCompatible Solutesen_US
dc.subjectMetabolic Pathwayen_US
dc.titleBiodegradation of benzene homologues in contaminated sediment of the East China Seaen_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.doi10.1016/j.biortech.2012.08.033en_US
dc.identifier.pmid22989641-
dc.identifier.scopuseid_2-s2.0-84866173808en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84866173808&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume124en_US
dc.identifier.spage129en_US
dc.identifier.epage136en_US
dc.identifier.isiWOS:000311175000018-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridLi, H=55195467100en_US
dc.identifier.scopusauthoridZhang, Q=55195553000en_US
dc.identifier.scopusauthoridWang, XL=55351929000en_US
dc.identifier.scopusauthoridMa, XY=8966551500en_US
dc.identifier.scopusauthoridLin, KF=8595195600en_US
dc.identifier.scopusauthoridLiu, YD=12785060300en_US
dc.identifier.scopusauthoridGu, JD=7403129601en_US
dc.identifier.scopusauthoridLu, SG=20734412800en_US
dc.identifier.scopusauthoridShi, L=36079938000en_US
dc.identifier.scopusauthoridLu, Q=35513737300en_US
dc.identifier.scopusauthoridShen, TT=55195169000en_US
dc.identifier.citeulike11334867-

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