Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1007/BF02987592
Volltext Shareable Link
Titel (primär) Effects of heavy metals on the nitrogen metabolism of the aquatic moss Fontinalis antipyretica l. ex hedw. - A 15N-tracer study
Autor Sutter, K.; Jung, K.; Krauss, G.-J.
Quelle Environmental Science and Pollution Research
Erscheinungsjahr 2002
Department OEC; COE
Band/Volume 9
Heft 6
Seite von 417
Seite bis 421
Sprache englisch
Abstract The assessment of pollution in aquatic systems necessitates an accurate indication of toxicity of heavy metals for organisms and ecosystems. We used the stable nitrogen isotope15N to estimate the influence of the heavy metals Cd, Pb and Zn on the synthesis of nitrogen-containing fractions in the aquatic mossFontinalis antipyretica. This method permits conclusions concerning inhibitory effects of these heavy metals on the assimilation of nitrogen and the biosynthesis of amino acids and proteins. The moss was exposed to metal concentrations of 25–500 μM over a period of 5–10 days.15N abundance of exposed plants was compared with that of control plants. Similar to a loss of vitality determined using a fluorometric assay, a decrease of the15N abundance in the N fractions ofFontinalis antipyretica was measured in dependence on the metal concentration. Nevertheless, the individual inhibition by the distinct metals was different, so that the following order of toxicity was derived: Cd » Pb > Zn.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=6056
Sutter, K., Jung, K., Krauss, G.-J. (2002):
Effects of heavy metals on the nitrogen metabolism of the aquatic moss Fontinalis antipyretica l. ex hedw. - A 15N-tracer study
Environ. Sci. Pollut. Res. 9 (6), 417 - 421 10.1007/BF02987592