Accumulation of metallic trace elements in Reynoutria japonica: a risk assessment for plant biomass valorization - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Environmental Science and Pollution Research Année : 2022

Accumulation of metallic trace elements in Reynoutria japonica: a risk assessment for plant biomass valorization

Résumé

Sustainable solutions aiming at limiting Reynoutria japonica invasion consist of frequent removal of its aerial biomass. The aims of this study were to measure the accumulation of metallic trace elements (MTE) in R. japonica, and to assess the ecotoxicological risk related to the valorization of the produced biomass. R. japonica fragmented rhizomes were regenerated in pots for 41 days on a control soil (CTL) or a moderately MTE-contaminated soil (POL, 3.6 mg Cd kg −1 DM). Growth traits were recorded, as well as MTE bioconcentration (BCF) and translocation factors (TF) from soil to plant organs. Whatever the MTE and plant organs, BCF remained below one (mean Cd-BCF for stem and leaf: 0.07 and 0.29 for CTL and POL, respectively), conversely to TF (until 2.2 for Cd and Ni in POL soil). When grown on the POL soil, R. japonica stem and leaf Cd content was close to the EU maximum regulatory limit for organic amendments or animal feed. Model simulations suggested that liver and kidney Cd concentrations would exceed the regulatory limit in food when adult cattle or sheep constantly ingest R. japonica grown on the POL soil over 200 to 800 days. The results of the present study will be useful to help managers in selecting efficient and safe solutions for the control of R. japonica invasion.
Fichier principal
Vignette du fichier
Lerch2022_Article_AccumulationOfMetallicTraceEle.pdf (877.89 Ko) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-03661922 , version 1 (08-05-2022)

Licence

Paternité

Identifiants

Citer

Sylvain Lerch, Catherine Sirguey, Alice Michelot-Antalik, Stefan Jurjanz. Accumulation of metallic trace elements in Reynoutria japonica: a risk assessment for plant biomass valorization. Environmental Science and Pollution Research, 2022, 29 (44), pp.67390-67401. ⟨10.1007/s11356-022-20485-7⟩. ⟨hal-03661922⟩
57 Consultations
58 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More