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BibTeX
Ecotoxicological effects of diuron and chlorotoluron nitrate-induced photodegradation products: Monospecific and aquatic mesocosm-integrated studies
Environmental toxicology and chemistry, 2010-12, Vol.29 (12), p.2644-2652
Nélieu, Sylvie
Bonnemoy, Frédérique
Bonnet, Jean-Louis
Lefeuvre, Luz
Baudiffier, Damien
Heydorff, Micheline
Quéméneur, Alphonse
Azam, Didier
Ducrot, Paul-Henri
Lagadic, Laurent
Bohatier, Jacques
Einhorn, Jacques
2010
Details
Autor(en) / Beteiligte
Nélieu, Sylvie
Bonnemoy, Frédérique
Bonnet, Jean-Louis
Lefeuvre, Luz
Baudiffier, Damien
Heydorff, Micheline
Quéméneur, Alphonse
Azam, Didier
Ducrot, Paul-Henri
Lagadic, Laurent
Bohatier, Jacques
Einhorn, Jacques
Titel
Ecotoxicological effects of diuron and chlorotoluron nitrate-induced photodegradation products: Monospecific and aquatic mesocosm-integrated studies
Ist Teil von
Environmental toxicology and chemistry, 2010-12, Vol.29 (12), p.2644-2652
Ort / Verlag
Hoboken, USA: John Wiley & Sons, Inc
Erscheinungsjahr
2010
Link zum Volltext
Quelle
Wiley Online Library - AutoHoldings Journals
Beschreibungen/Notizen
The ecotoxicological impact of nitrate‐induced photodegradation products of diuron and chlorotoluron was studied through monospecific biotests conducted in conjunction with experiments in outdoor aquatic mesocosms. Organisms representing three trophic levels were used: two heterotrophic microorganisms, the luminescent bacterium Vibrio fischeri and the ciliated protozoa Tetrahymena pyriformis, and one metazoa, the gastropod Lymnaea stagnalis. Among the variety of the phenylurea photoproducts, the N‐formylated ones appeared clearly more toxic than the parent compounds towards the microorganisms, whereas the nitroderivatives showed a similar toxicity. Using photodegraded solutions of diuron, toxicity was maintained or even increased during disappearance of the initial herbicide, demonstrating that some of the photoproducts may have an impact additively or in synergy. Enzymatic biomarker assays performed on Lymnaea stagnalis exposed under monospecific conditions showed significant effects, due to the combination of nitrate with the pesticide and its photoproducts. A positive impact on snail fecundity was observed with chlorotoluron both under monospecific laboratory and integrated mesocosm conditions. Oviposition stimulation took place when first‐ and second‐generation photoproducts were predominant. Environ. Toxicol. Chem. 2010;29:2644–2652. © 2010 SETAC
Sprache
Englisch
Identifikatoren
ISSN: 0730-7268, 1552-8618
eISSN: 1552-8618
DOI: 10.1002/etc.341
Titel-ID: cdi_hal_primary_oai_HAL_hal_00528143v1
Format
–
Schlagworte
Aliivibrio fischeri - chemistry
,
Aliivibrio fischeri - drug effects
,
Animals
,
Aquatic mesocosm
,
Bacteria
,
Diuron
,
Diuron - chemistry
,
Diuron - toxicity
,
Ecotoxicology
,
Freshwater
,
Gastropoda
,
Herbicides
,
Herbicides - chemistry
,
Herbicides - toxicity
,
Life Sciences
,
Lymnaea - chemistry
,
Lymnaea - drug effects
,
Lymnaea stagnalis
,
Metazoa
,
Micro-biotests
,
Microorganisms
,
Nitrate-induced photodegradation
,
Nitrates
,
Nitrates - chemistry
,
Organisms
,
Pesticides
,
Phenylurea
,
Phenylurea Compounds - chemistry
,
Phenylurea Compounds - toxicity
,
Photodegradation
,
Photolysis
,
Protozoa
,
Quaternary Ammonium Compounds - chemistry
,
Stimulation
,
Tetrahymena pyriformis
,
Tetrahymena pyriformis - chemistry
,
Tetrahymena pyriformis - drug effects
,
Toxic
,
Toxicity
,
Toxicology
,
Vibrio
,
Vibrio fischeri
,
Water - chemistry
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