title: Influence of fine process particles enriched with metals and metalloids on Lactuca sativa L. leaf fatty acid composition following air and/or soil-plant field exposure.
abstract: We investigate the effect of both foliar and root uptake of a mixture of metal(loid)s on the fatty acid composition of plant leaves. Our objectives are to determine whether both contamination pathways have a similar effect and whether they interact. Lactuca sativa L. were exposed to fine process particles enriched with metal(loid)s in an industrial area. Data from a first experiment were used to conduct an exploratory statistical analysis which findings were successfully cross-validated by using the data from a second one. Both foliar and root pathways impact plant leaf fatty acid composition and do not interact. Z index (dimensionless quantity), weighted product of fatty acid concentration ratios was built up from the statistical analyses. It provides new insights on the mechanisms involved in metal uptake and phytotoxicity. Plant leaf fatty acid composition is a robust and fruitful approach to detect and understand the effects of metal(loid) contamination on plants.
authors.affiliation: INP, UPS, EcoLab-Laboratoire Ecologie Fonctionnelle et Environnement, ENSAT, Université de Toulouse, Avenue de l'Agrobiopole, F-31326 Castanet Tolosan, France.
authors.forename: Eva
authors.initials: E
authors.lastname: Schreck
authors.forename: Christophe
authors.initials: C
authors.lastname: Laplanche
authors.forename: Marina
authors.initials: M
authors.lastname: Le Guédard
authors.forename: Jean-Jacques
authors.initials: JJ
authors.lastname: Bessoule
authors.forename: Annabelle
authors.initials: A
authors.lastname: Austruy
authors.forename: Tiantian
authors.initials: T
authors.lastname: Xiong
authors.forename: Yann
authors.initials: Y
authors.lastname: Foucault
authors.forename: Camille
authors.initials: C
authors.lastname: Dumat
mesh_terms: D000393:Air Pollutants / Q000378:metabolism / Q000633:toxicity; D004784:Environmental Monitoring; D005227:Fatty Acids / Q000378:metabolism; D018545:Lactuca / Q000187:drug effects / Q000378:metabolism*; D058955:Metalloids / Q000378:metabolism / Q000633:toxicity*; D008670:Metals / Q000378:metabolism / Q000633:toxicity*; D018515:Plant Leaves / Q000378:metabolism; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000378:metabolism / Q000633:toxicity*
chemical_list: D000393:Air Pollutants; D005227:Fatty Acids; D058955:Metalloids; D008670:Metals; D012987:Soil; D012989:Soil Pollutants