| Autor: | Margaret E. Farago, P.T. Lynch, Aradhana Mehra, L.E. Brewin |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
geography
Environmental Engineering geography.geographical_feature_category biology Compost fungi food and beverages chemistry.chemical_element General Medicine engineering.material biology.organism_classification Copper Micropropagation chemistry Geochemistry and Petrology Armeria maritima Botany Shoot Soil water engineering Environmental Chemistry Bog General Environmental Science Water Science and Technology |
| Zdroj: | Environmental Geochemistry and Health. 25:147-156 |
| ISSN: | 0269-4042 |
| DOI: | 10.1023/a:1021225721605 |
| Popis: | Preliminary field studies were carried out at Dolfrwynog Bog in July 2000. Replicate samples of water, Armeria maritima plants and the soils adhering to its roots were collected and analysed for copper. Concentrations of up to 6486 mg kg−1 of copper in the soils were recorded. Accumulation of copper by the plant as expressed by concentration factors (CF) show that it is acting mainly as a copper excluder. Of the copper that is taken up, most of it is retained within the roots with very little being transported to the shoots of the plant. Moreover, a further possible mechanism of tolerance is exhibited by the excretion of copper through its decaying leaves. Towards the use of in vitro cultures to study the copper tolerance mechanisms in A. maritima a micropropagation protocol has been developed. The ex vitro plants have been rooted and established in compost. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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