Chemical speciation and bioavailability of Cu(II). Study of the ionic copper(II) and bis(glycinate)-copper(II) accumulation by Lemna species

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Bulletin of Environmental Contamination and Toxicology; (United States)

DOI:https://doi.org/10.1007/BF01688949· OSTI ID:5138277

Benda, F; Kouba, J ^[1]

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1. Czechoslovak Academy of Sciences, Na sadkach (Czechoslovakia)

In this paper, the authors examined the accumulation of copper(II) in, and its toxic effect on, duckweed, a plant which exhibits extremely high concentration factors. The effect of copper(II) was investigated by adding it to the minimal medium in two forms: CuSO{sub 4} and (Cu(Gly){sub 2}). The neutral (2:1) tetracoordinated bis(glycinate)-copper(II) complex is constituted by two five-membered rings bonded to the central copper atom with the cis configuration. This complex was chosen to model the function of a neutral species (eliminating the charge effect) involving a nontoxic ligand, for which - in contrast to the hydrated Cu{sup 2+} species - direct permeation through the cell wall is conceivable.

• OSTI ID: 5138277
• Journal Information: Bulletin of Environmental Contamination and Toxicology; (United States), Journal Name: Bulletin of Environmental Contamination and Toxicology; (United States) Vol. 46:3; ISSN 0007-4861; ISSN BECTA
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMINO ACIDS
AQUATIC ORGANISMS
BIOLOGICAL AVAILABILITY
CARBOXYLIC ACIDS
CATIONS
CHARGED PARTICLES
COPPER COMPOUNDS
ECOLOGICAL CONCENTRATION
GLYCINE
IONS
ORGANIC ACIDS
ORGANIC COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WEEDS