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Genetic and physiological responses of three freshwater diatoms to realistic diuron exposures

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMOISSET, S.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorKIM TIAM, Sandra
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorFEURTET-MAZEL, Agnès
dc.contributor.authorMORIN, S.
dc.contributor.authorDELMAS, F.
dc.contributor.authorMAZZELLA, N.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorGONZALEZ, Patrice
ORCID: 0000-0003-2628-2993
IDREF: 14341917X
dc.date.accessioned2024-04-16T10:06:29Z
dc.date.available2024-04-16T10:06:29Z
dc.date.issued2014-09-16
dc.identifier.issn0944-1344en_US
dc.identifier.urioai:crossref.org:10.1007/s11356-014-3523-2
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/199096
dc.description.abstractEnThis study examined the effects of diuron on strains of three major freshwater diatom species, Eolimna minima, Nitzschia palea and Planothidium lanceolatum. These species are frequently recorded in the Morcille River, where diuron runs off during phytosanitary treatments of the vineyards around. Here, there were three diatom exposure groups for each species: 0, 1 and 10 μg/L diuron during a 14-day laboratory assessment. Diuron water concentration, cell number, photosynthetic activity and gene expression were assessed at 6 h and 2, 7 and 14 days after contamination. Diuron exposure altered photosynthetic activity in that the optimal quantum yield of photosystem II (PSII) decreased between 40 and 50 % and, for P. lanceolatum at 10 μg/L, there was complete inhibition. Genetic responses indicated diuron effects on both photosystem II and mitochondrial metabolism in all three species at both diuron exposure levels. Thus, analysis of the expression of psaA, d1, cox1, nad5 and 12s could be an early biomarker to detect pesticide pollution. Overall, this study revealed differences in diuron sensitivity among the three species: E. minima and N. palea appeared to be more tolerant than P. lanceolatum. These results suggest that the development of molecular tools, and more precisely of biomarkers, will aid in early assessment of contamination and water quality.
dc.language.isoENen_US
dc.sourcecrossref
dc.title.enGenetic and physiological responses of three freshwater diatoms to realistic diuron exposures
dc.typeArticle de revueen_US
dc.identifier.doi10.1007/s11356-014-3523-2en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalEnvironmental Science and Pollution Researchen_US
bordeaux.page4046-4055en_US
bordeaux.volume22en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue6en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamEAen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Environmental%20Science%20and%20Pollution%20Research&rft.date=2014-09-16&rft.volume=22&rft.issue=6&rft.spage=4046-4055&rft.epage=4046-4055&rft.eissn=0944-1344&rft.issn=0944-1344&rft.au=MOISSET,%20S.&KIM%20TIAM,%20Sandra&FEURTET-MAZEL,%20Agn%C3%A8s&MORIN,%20S.&DELMAS,%20F.&rft.genre=article


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