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Lead- and copper-complexing extracellular ligands released by Kirchneriella aperta (Chloroccocales, Chlorophyta)

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dc.contributor.authorLombardi, A. T.
dc.contributor.authorVieira, A. A. H.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:19:45Z
dc.date.available2014-05-27T11:19:45Z
dc.date.issued1999-07-01
dc.description.abstractThe freshwater planktonic alga Kirchneriella aperta was grown in batch cultures to stationary growth phase. Copper and lead complexation properties of the exudate from stationary and exponential growth phases were determined by titrations monitored by ion-selective electrodes. Molecular weight fractionation dialysis) and analysis of the titration data (Scatchard Plot) revealed that K. aperta releases metal-complexing ligands. Copper is associated with low and high molecular weight compounds, whereas lead forms complexes with only high molecular weight compounds. Gas-liquid chromatography showed that mannose and rhamnose make up 74% of the total high molecular weight organic material, with uronic acids present at 19%.en
dc.description.affiliationUniv. Federal de São Carlos Departamento de Botânica, C.P. 676, São Carlos, SP 13565-905
dc.description.affiliationDepartamento de Bioquimica Instituto de Quimica Campus de Araraquara, C.P. 355, Araraquara, SP 14801-970
dc.format.extent283-288
dc.identifierhttp://dx.doi.org/10.2216/i0031-8884-38-4-283.1
dc.identifier.citationPhycologia, v. 38, n. 4, p. 283-288, 1999.
dc.identifier.doi10.2216/i0031-8884-38-4-283.1
dc.identifier.issn0031-8884
dc.identifier.scopus2-s2.0-0032826390
dc.identifier.urihttp://hdl.handle.net/11449/65806
dc.identifier.wosWOS:000082910500005
dc.language.isoeng
dc.relation.ispartofPhycologia
dc.relation.ispartofjcr1.798
dc.relation.ispartofsjr0,678
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectalga
dc.subjectcopper
dc.subjectgas chromatography
dc.subjectKirchneriella aperta
dc.subjectlead
dc.subjectliquid chromatography
dc.subjectmannose
dc.subjectrhamnose
dc.subjectsecondary metabolite
dc.titleLead- and copper-complexing extracellular ligands released by Kirchneriella aperta (Chloroccocales, Chlorophyta)en
dc.typeArtigo
dcterms.licensehttp://www.phycologia.org/userimages/ContentEditor/1240601998296/Terms_and_Conditions_PHYA1.pdf
dspace.entity.typePublication

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