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Article: Complete degradation of dimethyl isophthalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment

TitleComplete degradation of dimethyl isophthalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sediment
Authors
KeywordsBiochemical cooperation
Biodegradation
Dimethyl isophthalate
Isophthalic acid
Monomethyl isophthalate
Plasticizers
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv
Citation
Science Of The Total Environment, 2007, v. 380 n. 1-3, p. 181-187 How to Cite?
AbstractTwo bacterial strains Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr were isolated and identified from enrichment cultures using dimethyl isophthalate (DMI) as the sole source of carbon and energy, and mangrove sediment as an inoculum. DMI was rapidly transformed by K. oxytoca Sc in the culture with formation of monomethyl isophthalate (MMI), which accumulated in the culture medium. M. mesophilicum Sr, incapable of utilizing DMI, showed high capability of degrading MMI to a transitory intermediate isophthalic acid (IPA), which was further mineralized by this strain. The biochemical pathway of DMI degradation by these two bacteria in a consortium was proposed: DMI to MMI by K. oxytoca Sc, MMI to IPA by M. mesophilicum Sr, and IPA by both K. oxytoca Sc and M. mesophilicum Sr based on the identified degradation intermediates. The consortium comprising K. oxytoca Sc and M. mesophilicum Sr was effective in mineralization of DMI. The results suggest that complete degradation of environmental pollutant DMI requires the biochemical cooperation between different microorganisms of the mangrove environment. © 2006 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/89336
ISSN
2015 Impact Factor: 3.976
2015 SCImago Journal Rankings: 1.702
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Jen_HK
dc.contributor.authorGu, JDen_HK
dc.date.accessioned2010-09-06T09:55:34Z-
dc.date.available2010-09-06T09:55:34Z-
dc.date.issued2007en_HK
dc.identifier.citationScience Of The Total Environment, 2007, v. 380 n. 1-3, p. 181-187en_HK
dc.identifier.issn0048-9697en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89336-
dc.description.abstractTwo bacterial strains Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr were isolated and identified from enrichment cultures using dimethyl isophthalate (DMI) as the sole source of carbon and energy, and mangrove sediment as an inoculum. DMI was rapidly transformed by K. oxytoca Sc in the culture with formation of monomethyl isophthalate (MMI), which accumulated in the culture medium. M. mesophilicum Sr, incapable of utilizing DMI, showed high capability of degrading MMI to a transitory intermediate isophthalic acid (IPA), which was further mineralized by this strain. The biochemical pathway of DMI degradation by these two bacteria in a consortium was proposed: DMI to MMI by K. oxytoca Sc, MMI to IPA by M. mesophilicum Sr, and IPA by both K. oxytoca Sc and M. mesophilicum Sr based on the identified degradation intermediates. The consortium comprising K. oxytoca Sc and M. mesophilicum Sr was effective in mineralization of DMI. The results suggest that complete degradation of environmental pollutant DMI requires the biochemical cooperation between different microorganisms of the mangrove environment. © 2006 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenven_HK
dc.relation.ispartofScience of the Total Environmenten_HK
dc.rightsScience of the Total Environment. Copyright © Elsevier BV.en_HK
dc.subjectBiochemical cooperationen_HK
dc.subjectBiodegradationen_HK
dc.subjectDimethyl isophthalateen_HK
dc.subjectIsophthalic aciden_HK
dc.subjectMonomethyl isophthalateen_HK
dc.subjectPlasticizersen_HK
dc.titleComplete degradation of dimethyl isophthalate requires the biochemical cooperation between Klebsiella oxytoca Sc and Methylobacterium mesophilicum Sr Isolated from Wetland sedimenten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0048-9697&volume=380&spage=181&epage=187&date=2007&atitle=Complete+degradation+of+dimethyl+isophthalate+requires+the+biochemical+cooperation+between+Klebsiella+oxytoca+Sc+and+Methylobacterium+mesophilicum+Sr+isolated+from+wetland+sediment.en_HK
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_HK
dc.identifier.authorityGu, JD=rp00701en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.scitotenv.2006.12.033en_HK
dc.identifier.pmid17258288-
dc.identifier.scopuseid_2-s2.0-34249096443en_HK
dc.identifier.hkuros141815en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34249096443&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume380en_HK
dc.identifier.issue1-3en_HK
dc.identifier.spage181en_HK
dc.identifier.epage187en_HK
dc.identifier.isiWOS:000247737700020-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLi, J=8951695400en_HK
dc.identifier.scopusauthoridGu, JD=7403129601en_HK

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