title: The influence of gadolinium and yttrium on biomass production and nutrient balance of maize plants.
abstract: Rare earth elements (REE) are expected to become pollutants by enriching in the environment due to their wide applications nowadays. The uptake and distribution of gadolinium and yttrium and its influence on biomass production and nutrient balance was investigated in hydroponic solution experiments with maize plants using increasing application doses of 0.1, 1 and 10 mg L(-1). It could be shown that concentrations of up to 1 mg L(-1) of Gd and Y did not reduce or enhance the plant growth or alter the nutrient balance. 10 mg L(-1) Gd or Y resulted in REE concentrations of up to 1.2 weight-% in the roots and severe phosphate deficiency symptoms. Transfer rates showed that there was only little transport of Gd and Y from roots to shoots. Significant correlations were found between the concentration of Gd and Y in the nutrient solution and the root tissue concentration of Ca, Mg and P.
authors.affiliation: UFZ - Helmholtz-Centre for Environmental Research, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany.
authors.forename: Jessica
authors.initials: J
authors.lastname: Saatz
authors.affiliation: UFZ - Helmholtz-Centre for Environmental Research, Department of Soil Physics, Theodor-Lieser-Strasse 4, 06120 Halle, Germany.
authors.forename: Doris
authors.initials: D
authors.lastname: Vetterlein
authors.affiliation: UFZ - Helmholtz-Centre for Environmental Research, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Mattusch
authors.affiliation: TU Bergakademie Freiberg, Institute of Analytical Chemistry, Leipziger Strasse 29, 09599 Freiberg, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Otto
authors.affiliation: UFZ - Helmholtz-Centre for Environmental Research, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany. Electronic address: birgit.daus@ufz.de.
authors.forename: Birgit
authors.initials: B
authors.lastname: Daus
mesh_terms: D018533:Biomass; D002118:Calcium / Q000378:metabolism; D005682:Gadolinium / Q000633:toxicity*; D018527:Hydroponics; D008274:Magnesium / Q000378:metabolism; D010710:Phosphates / Q000378:metabolism; D010758:Phosphorus / Q000378:metabolism; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism; D015019:Yttrium / Q000633:toxicity*; D003313:Zea mays / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism
chemical_list: D010710:Phosphates; D010758:Phosphorus; D015019:Yttrium; D005682:Gadolinium; D008274:Magnesium; D002118:Calcium
keywords: Bioavailability; Corn; Critical raw materials; Rare-earth elements; Root-shoot transfer