The effect of copper toxicity on the contents of nitrogen compounds in Silene vulgaris (Moench) Garcke
Autor: | W. M. Ten Bookum-Van Der Maarel, Henk Schat, M. B. Weber |
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Rok vydání: | 1991 |
Předmět: |
inorganic chemicals
chemistry.chemical_classification biology Chemistry Copper toxicity food and beverages Soil Science Plant physiology chemistry.chemical_element Plant Science medicine.disease biology.organism_classification Nitrogen Copper Amino acid chemistry.chemical_compound Nitrate Biochemistry medicine Ammonium Nuclear chemistry Silene vulgaris |
Zdroj: | Plant and Soil. 133:101-109 |
ISSN: | 1573-5036 0032-079X |
DOI: | 10.1007/bf00011904 |
Popis: | The effect of copper on the uptake of nitrogen and the tissue contents of inorganic nitrogen, amino acids and proteins were studied in cooper-sensitive Silene vulgaris (Moench) Garcke, grown at different nitrogen sources (NH4+ or NO3-). All the toxic copper levels tested, i.e. 4, 8, 16 μM Cu2+, strongly inhibited the uptake of nitrogen, especially of NO3-, and decreased the content of NO3-, amino acids and proteins. Especially at 4 and 8 μM Cu2+, NH4+ accumulated in the plants, suggesting that the conversion of NH4- into amino acids was inhibited. |
Databáze: | OpenAIRE |
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