Titre :

The role of epicuticular waxes on foliar metal transfer and phytotoxicity in edible vegetables: case of Brassica oleracea species exposed to manufactured particles

Auteur(s) :

Dappe, Vincent [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Dumez, Sylvain [Auteur]
Impact de l'environnement chimique sur la santé humaine - ULR 4483 [IMPECS]
Bernard, Fabien [Auteur]
Impact de l'environnement chimique sur la santé humaine - ULR 4483 [IMPECS]
Hanoune, Benjamin [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Cuny, Damien [Auteur]
Impact de l'environnement chimique sur la santé humaine - ULR 4483 [IMPECS]
Dumat, Camille [Auteur]
Centre d'Etude et de Recherche Travail Organisation Pouvoir [CERTOP]
Institut National Polytechnique (Toulouse) [Toulouse INP]
Sobanska, Sophie [Auteur]
Institut des Sciences Moléculaires [ISM]
1292|||Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]

Titre de la revue :

Environmental Science and Pollution Research

Nom court de la revue :

Environ Sci Pollut Res

Numéro :

26

Pagination :

20092-20106

Éditeur :

Springer Verlag

Date de publication :

2018-09-27

ISSN :

0944-1344

Mot(s)-clé(s) en anglais :

Brassica oleracea
Metallic particles
Foliar transfer
Epicuticular waxes
Phytotoxicity
DNA damage Gene expression

Discipline(s) HAL :

Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Sciences de l'ingénieur [physics]
Chimie/Chimie théorique et/ou physique
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]

Résumé en anglais : [en]

The rapid industrialization and urbanization of intra- and peri-urban areas at the world scale are responsible for the degradation of the quality of edible crops, because of their contamination with airborne pollutants. ...
Lire la suite >The rapid industrialization and urbanization of intra- and peri-urban areas at the world scale are responsible for the degradation of the quality of edible crops, because of their contamination with airborne pollutants. Their consumption could lead to serious health risks. In this work, we aim to investigate the phytotoxicity induced by foliar transfer of atmospheric particles of industrial/urban origin. Leaves of cabbage plants (Brassica oleracea var. Prover) were contaminated with metal-rich particles (PbSO4 CuO and CdO) of micrometer size. A trichloroacetic acid (TCA) treatment was used to inhibit the synthesis of the epicuticular waxes in order to investigate their protective role against metallic particles toxicity. Besides the location of the particles on/in the leaves by microscopic techniques, photosynthetic activity measurements, genotoxicity assessment, and quantification of the gene expression have been studied for several durations of exposure (5, 10, and 15 days). The results show that the depletion of epicuticular waxes has a limited effect on the particle penetration in the leaf tissues. The stomatal openings appear to be the main pathway of particles entry inside the leaf tissues, as demonstrated by the overexpression of the BolC.CHLI1 gene. The effects of particles on the photosynthetic activity are limited, considering only the photosynthetic Fv/Fm parameter. The genotoxic effects were significant for the contaminated TCA-treated plants, especially after 10 days of exposure. Still, the cabbage plants are able to implement repair mechanisms quickly, and to thwart the physiological effects induced by the particles. Finally, the foliar contamination by metallic particles induces no serious damage to DNA, as observed by monitoring the BolC.OGG1 gene.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Autre(s) projet(s) ou source(s) de financement :

Région Hauts-de-France
IRENI
FEDER (n°42525)

Collections :

• IMPact de l'Environnement Chimique sur la Santé humaine (IMPECS) - ULR 4483
• Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
• Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522

Équipe(s) de recherche :

PhysicoChimie de l'Atmosphère (PCA)

Date de dépôt :

2018-12-07T10:54:49Z
2018-12-14T17:30:07Z
2018-12-19T10:29:09Z
2019-04-29T14:25:45Z
2022-10-03T10:30:56Z
2024-01-31T09:34:23Z