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Ecotoxicological and biochemical effects of environmental concentrations of the plastic-bond pollutant dibutyl phthalate on Scenedesmus sp.

2019Journal article Open access
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dc.contributor.authorCunha, César
dc.contributor.authorPaulo, Jorge
dc.contributor.authorFaria, Marisa
dc.contributor.authorKaufmann, Manfred
dc.contributor.authorCordeiro, Nereida
dc.date.accessioned2021-04-19T13:33:26Z
dc.date.available2021-04-19T13:33:26Z
dc.date.issued2019
dc.description.abstractPhthalate esters are highly present in aquatic plastic litter, which can interfere with the biological processes in the wildlife. In this work, the commonly found freshwater microalga Scenedesmus sp. was exposed to environmental concentrations (0.02, 1 and 100 μg L-1) and to a higher concentration (500 μg L-1) of dibutyl phthalate (DBP), which is an environmental pollutant. The growth, pH variation, production of photosynthetic pigments, proteins and carbohydrates were evaluated. The main inhibition effect of DBP on the microalgal growth was observed in the first 48 h of the exposure (EC50: 41.88 μg L-1). A reduction in the photosynthetic pigment concentration was observed for the 0.02, 1 and 100 μg L-1 conditions indicating that the DBP downregulated the growth rate and affected the photosynthetic process. A significant increase in protein production was only observed under 500 μg L-1 DBP exposure. The extracellular carbohydrates production slightly decreased with the presence of DBP, with a stronger decrease occurring in the 500 μg L-1 condition. These results highlight the environmental risk evaluation and ecotoxicological effects of DBP on the production of biovaluable compounds by microalgae. The results also emphasize the importance of assessing the consequences of the environmental concentrations exposure as a result of the DBP dose-dependent correlation effects.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCunha, C., Paulo, J., Faria, M., Kaufmann, M., & Cordeiro, N. (2019). Ecotoxicological and biochemical effects of environmental concentrations of the plastic-bond pollutant dibutyl phthalate on Scenedesmus sp. Aquatic Toxicology, 215, 105281.pt_PT
dc.identifier.doi10.1016/j.aquatox.2019.105281pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3304
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectScenedesmus sp.pt_PT
dc.subjectDibutyl phthalatept_PT
dc.subjectEcotoxicitypt_PT
dc.subjectEnvironmental endocrine disruptorpt_PT
dc.subjectPlastic-bond pollutantpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleEcotoxicological and biochemical effects of environmental concentrations of the plastic-bond pollutant dibutyl phthalate on Scenedesmus sp.pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage105281pt_PT
oaire.citation.titleAquatic Toxicologypt_PT
oaire.citation.volume215pt_PT
person.familyNameCunha
person.familyNameFaria
person.familyNameKaufmann
person.familyNamecordeiro
person.givenNameCésar
person.givenNameMarisa Camacho Gonçalves
person.givenNameManfred
person.givenNamenereida
person.identifier1612636
person.identifier.ciencia-idEC12-B90B-BA98
person.identifier.ciencia-idD716-6F48-AD0E
person.identifier.ciencia-idA316-A34A-F7AF
person.identifier.ciencia-id521A-0F62-EA39
person.identifier.orcid0000-0003-3811-2932
person.identifier.orcid0000-0002-9158-6961
person.identifier.orcid0000-0001-6213-3229
person.identifier.orcid0000-0001-6006-3415
person.identifier.ridA-7561-2013
person.identifier.ridO-2253-2019
person.identifier.scopus-author-id35264346100
person.identifier.scopus-author-id7004319456
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication78f9a06c-3911-42c4-9899-45aafac82c73
relation.isAuthorOfPublication57ef72f0-8e40-4853-b4ab-416884e127fa
relation.isAuthorOfPublication041c8f9b-d342-4678-938d-9c95a4fd19de
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relation.isAuthorOfPublication.latestForDiscovery57ef72f0-8e40-4853-b4ab-416884e127fa

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