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Herbicide toxicity on river biofilms assessed by pulse amplitude modulated (PAM) fluorometry

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorKIM TIAM, Sandra
dc.contributor.authorLAVIALE, Martin
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorFEURTET-MAZEL, Agnes
dc.contributor.authorJAN, Gwilherm
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorGONZALEZ, Patrice
ORCID: 0000-0003-2628-2993
IDREF: 14341917X
dc.contributor.authorMAZZELLA, Nicolas
dc.contributor.authorMORIN, Soizic
dc.date.accessioned2024-04-12T08:03:04Z
dc.date.available2024-04-12T08:03:04Z
dc.date.issued2015-08-01
dc.identifier.issn0166-445Xen_US
dc.identifier.urihttps://www.researchgate.net/publication/277727318_Herbicide_toxicity_on_river_biofilms_assessed_by_pulse_amplitude_modulated_PAM_fluorometry
dc.identifier.urioai:crossref.org:10.1016/j.aquatox.2015.05.001
dc.identifier.urioai:researchgate.net:277727318
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/197572
dc.description.abstractEnThe use of Rapid light curves (RLCs) as a toxicity endpoint for river biofilms was examined in this studyand compared to "classical fluorescence parameters" i.e. minimal fluorescence (F0), optimal and effectivequantum yields of photosystem II (Fv/Fmand PSII). Measurements were performed after exposure tofive concentrations of diuron (from 0.3 to 33.4 g L-1), its main degradation product (DCPMU) (from1.0 to 1014 g L-1) and norflurazon (from 0.6 to 585 g L-1) with the lowest exposure concentrationscorresponding to levels regularly encountered in chronically contaminated sites. Biofilm responses wereevaluated after 1, 5, 7 and 14 days of exposure to the different toxicants.Overall, the responses of both "classical fluorescence parameters" and RLC endpoints were highly timedependent and related to the mode of action of the different compounds. Interestingly, parameters cal-culated from RLCs (ETRmaxand Ik) were useful early markers of pesticide exposure since they revealedsignificant effects of all the tested toxicants from the first day of exposure. In comparison, classicalfluorescence endpoints (F0and Fv/Fm) measured at day 1 were only affected in the DCPMU treatment.Our results demonstrated the interest of RLCs as early markers of toxicant exposure particularly whenworking with toxicants with less specific mode of action than PSII inhibitors.
dc.language.isoENen_US
dc.sourcecrossref
dc.sourceresearchgate
dc.title.enHerbicide toxicity on river biofilms assessed by pulse amplitude modulated (PAM) fluorometry
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.aquatox.2015.05.001en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalAquatic Toxicologyen_US
bordeaux.page160-171en_US
bordeaux.volume165en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_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=Aquatic%20Toxicology&rft.date=2015-08-01&rft.volume=165&rft.spage=160-171&rft.epage=160-171&rft.eissn=0166-445X&rft.issn=0166-445X&rft.au=KIM%20TIAM,%20Sandra&LAVIALE,%20Martin&FEURTET-MAZEL,%20Agnes&JAN,%20Gwilherm&GONZALEZ,%20Patrice&rft.genre=article


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