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Research Articles
Metabolism of Phenanthrene in Cell Suspension Cultures of Wheat and Soybean as well as in Intact Plants of the Water Moss Fontinalis antipyretica:
A Comparative Study
Christiane Schrenk; Christian Steinberg
Corresponding author:: Christian E.W. Steinberg, Institute for Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, D-12587 Berlin, Germany
The metabolism of phenanthrene was studied both in cell suspension cultures of wheat (Triticum aestivum) and soybean (Glycine max), and in intact plants of the water moss Fontinalis antipyretica. Metabolism in cell suspension cultures strongly dif-fered between the monocotyle and the dicotyle plant. Only small amounts of trans-phe-nanthrene-9,10-dihydrodiole and phenanthrene-9,10-dione were detectable in the wheat culture. Soybean cultures, in contrast demonstrated a strong turnover resulting in a 75% reduction of the ini-tial phenanthrene concentration. Metabolites were phenanthrene-9,10.-di-one, not further characterized polar metabolites and bound residues. Intact plants of Fontinalis antipyretica metabolized only small amounts of phenanthrene. Data obtained from cell cultures did not provide information for the metabolic potential in intact plants. Therefore standardized tests with model systems like suspension cultures lead to inade-quate assessment of the ecological risk of certain xenobiotics. | | Keywords: Cell suspension cultures, model system, phenanthrene metabolism; Fontinalis antipyretica, phenanthrene metabolism; metabolism of phenanthrene, comparative study, standardized tests - intact plants; phenanthrene metabolism, comparative study, standardized tests - intact plants |
5 ESPR (2) 83-88 (1998)
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