title: Potential use of Lemna minor for the phytoremediation of isoproturon and glyphosate.
abstract: Pesticides are being detected in water bodies on an increasingly frequent basis. The present study focused on toxicity and phytoremediation potential of aquatic plants to remove phytosanitary products from contaminated water. We investigated the capacity of Lemna minor (L. minor) to eliminate two herbicides isoproturon and glyphosate from their medium. Since phytoremediation relies on healthy plants, pesticide toxicity was evaluated by exposing plants to 5 concentrations (0-20 microg L(-1) for isoproturon and 0-120 microg L(-1) for glyphosate) in culture media for 4 d using growth rate and chlorophyll a fluorescence as endpoints. At exposure concentrations of 10 microg x L(-1) for isoproturon and 80 microg x L(-1) for glyphosate, effects on growth rate and chlorophyll fluorescence were minor (< 25%), so that this initial concentration was selected to study herbicide removal After a 4-d incubation, removal yields were 25% and 8% for isoproturon and glyphosate, respectively.
authors.affiliation: Laboratoire Plantes, Pesticides et Développement Durable (PPDD), Université de Reims Champagne-Ardenne, Reims Cedex, France.
authors.forename: Rachel
authors.initials: R
authors.lastname: Dosnon-Olette
authors.forename: Michel
authors.initials: M
authors.lastname: Couderchet
authors.forename: Mehmet A
authors.initials: MA
authors.lastname: Oturan
authors.forename: Nihal
authors.initials: N
authors.lastname: Oturan
authors.forename: Philippe
authors.initials: P
authors.lastname: Eullaffroy
mesh_terms: D029064:Araceae / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002734:Chlorophyll / Q000378:metabolism; D000077194:Chlorophyll A; D005453:Fluorescence; D005998:Glycine / Q000031:analogs & derivatives* / Q000032:analysis / Q000378:metabolism / Q000633:toxicity; D006540:Herbicides / Q000032:analysis / Q000378:metabolism* / Q000633:toxicity; D010671:Phenylurea Compounds / Q000032:analysis / Q000378:metabolism* / Q000633:toxicity; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000378:metabolism / Q000633:toxicity; D000097797:Glyphosate
chemical_list: D002734:Chlorophyll; D000077194:Chlorophyll A; D005998:Glycine; D006540:Herbicides; D010671:Phenylurea Compounds; D014874:Water Pollutants, Chemical; D000097797:Glyphosate; C028904:isoproturon