Publication Details
Category Text Publication
Reference Category Journals
DOI 10.1016/S0045-6535(01)00111-4
Title (Primary) Effects of trichloroacetic acid on the nitrogen metabolism of Pinus sylvestris - A 13C/15N tracer study
Author Hafner, C.; Jung, K.; Schüürmann, G.
Journal Chemosphere
Year 2002
Department OEC; COE
Volume 46
Issue 2
Page From 259
Page To 266
Language englisch
Keywords Air pollution; Bioindication; Bioaccumulation; Bioavailability; Stable isotopes
Abstract Trichloroacetic acid (TCA) can be found in various environmental compartments like air, rain and plants all over the world. It is assumed that TCA is an atmospheric degradation product of volatile chloroorganic hydrocarbons. The herbicide effect of TCA in higher concentrations is well known, but not much is known about the phytotoxic effects in environmentally relevant concentrations. It can be shown in this study by using the C-13/N-15 stable isotope tracer technique that PC]TCA is taken up by roots of two-year-old seedlings of Pinus sylvestris L. and transported into the needles. At the same time the effect of the substance on nitrogen metabolism can be analyzed by measuring the incorporation of (NO3-)-N-15 into different nitrogen fractions of the plant. The more [C-13]TCA incorporation, the higher the synthesis of N-15 labelled amino acids and proteins is. These effects on the nitrogen metabolism are probably based on the activation of stress- and detoxification metabolism. It has to be assumed that there is an influence on N metabolism of Pinus sylvestris caused by the deposition of environmentally relevant TCA concentrations. (C) 2002 Elsevier Science Ltd. All rights reserved.Trichloroacetic
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=5552
Hafner, C., Jung, K., Schüürmann, G. (2002):
Effects of trichloroacetic acid on the nitrogen metabolism of Pinus sylvestris - A 13C/15N tracer study
Chemosphere 46 (2), 259 - 266