Repository logo
 
Publication

Toxicity of cadmium and zinc on two microalgae, Scenedesmus obliquus and Desmodesmus pleiomorphus, from Northern Portugal

2011Journal article Restricted access
Simple item page
dc.contributor.authorMonteiro, Cristina M.
dc.contributor.authorFonseca, Susana C.
dc.contributor.authorCastro, Paula M. L.
dc.contributor.authorMalcata, F. Xavier
dc.date.accessioned2011-10-22T11:41:10Z
dc.date.available2011-10-22T11:41:10Z
dc.date.issued2011
dc.description.abstractAquatic environments often contain toxic heavy metals that may enter the food web via uptake by microalgae and eventually cause severe poisoning problems at higher trophic levels. The effects of Cd and Zn cations upon growth of two native green microalgal species, Scenedesmus obliquus and Desmodesmus pleiomorphus (previously isolated from a polluted site in Northern Portugal), were accordingly evaluated. Growth inhibition of the microalgal cells was determined following exposure for 96 h to several initial concentrations of aqueous solutions of either of those two metals. At the higher end of Cd and Zn experimental concentration ranges, a significant reduction in cell density was observed in the cultures; EC50 values, calculated after fitting a Weibull model to the experimental data, were 0.058 and 1.92 mg L−1 for Cd and 16.99 and 4.87 mg L−1 for Zn in the case of S. obliquus and D. pleiomorphus, respectively. One observed that S. obliquus can tolerate higher Zn concentrations than D. pleiomorphus, but the reverse holds regarding exposure to Cd.por
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationMONTEIRO, Cristina M... [et al.] - Toxicity of cadmium and zinc on two microalgae, Scenedesmus obliquus and Desmodesmus pleiomorphus, from Northern Portugal. Journal of Applied Phycology. ISSN 1573-5176. Vol. 23, n.º 1 (2011), p. 97-103por
dc.identifier.doi10.1007/s10811-010-9542-6
dc.identifier.urihttp://hdl.handle.net/10400.14/6797
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringer Verlagpor
dc.subjectMicroalgaepor
dc.subjectHeavy metalspor
dc.subjectCdpor
dc.subjectZnpor
dc.subjectEC50por
dc.subjectWeibull modelpor
dc.titleToxicity of cadmium and zinc on two microalgae, Scenedesmus obliquus and Desmodesmus pleiomorphus, from Northern Portugalpor
dc.typejournal article
dspace.entity.typePublication
person.familyNameCaldas-Fonseca
person.familyNameCastro
person.familyNameMalcata
person.givenNameSusana
person.givenNamePaula
person.givenNameFrancisco
person.identifier2013444
person.identifier.ciencia-idCA17-1DC3-74DF
person.identifier.ciencia-id7C1F-6C72-354A
person.identifier.ciencia-id1B13-38A5-35F5
person.identifier.orcid0000-0003-4793-5965
person.identifier.orcid0000-0001-8841-6606
person.identifier.orcid0000-0003-3073-1659
person.identifier.ridB-2880-2012
person.identifier.ridM-8241-2013
person.identifier.scopus-author-id7005476572
person.identifier.scopus-author-id7102781782
person.identifier.scopus-author-id7102542478
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication8d4c2a43-507d-4ded-94bb-4732e098ffca
relation.isAuthorOfPublicationf2253992-dc8d-4042-9a0f-597ebcf0a1d6
relation.isAuthorOfPublicationa06c00da-0e2f-4434-8ede-4d7b22c0dfe9
relation.isAuthorOfPublication.latestForDiscovery8d4c2a43-507d-4ded-94bb-4732e098ffca

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
19822354.pdf
Size:
171.87 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.44 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CBQF - Contribuições em Revistas Científicas / Contribution to Journals