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| Content Provider | Springer Nature Link |
|---|---|
| Author | Dulya, O. V. Mikryukov, V. S. Vorobeichik, E. L. |
| Copyright Year | 2013 |
| Abstract | The response to copper pollution was studied in the vegetative progeny of tufted hair grass (Deschampsia caespitosa (L.) Beauv.) and ragged robin (Lychnis flos-cuculi L.) plants growing together in chronically polluted areas around the Middle Ural Copper Smelter or in background areas. The root elongation test was used, with copper sulfate (0.006–0.51 mg Cu/L) being added directly to the nutrient medium. Using multimodel inference, dose-response curves were plotted for each of 85 maternal plants, and their parameters (effective Cu concentrations and curve slope in the linear segment) were evaluated. The pattern of transformation in dose dependence of root increment upon transition from background to impact populations proved to be basically different in the two species. The curves for L. flos-cuculi showed a parallel shift, with their shape remaining generally unchanged. In D. caespitosa, this transition was accompanied by a decrease in sensitivity to Cu, but tolerance to this metal was found to increase only at the highest concentration range. These results provide evidence for different strategies of adaptation to heavy metal pollution, which are discussed by comparing the physiological and ecological properties of the two species. |
| Starting Page | 271 |
| Ending Page | 281 |
| Page Count | 11 |
| File Format | |
| ISSN | 10674136 |
| Journal | Russian Journal of Ecology |
| Volume Number | 44 |
| Issue Number | 4 |
| e-ISSN | 16083334 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2013-07-13 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Lychnis Deschampsia Silene root elongation test population adaptation tolerance sensitivity dose-response relationship effective concentrations industrial pollution heavy metals copper Middle Ural Copper Smelter Ecology Environment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology, Evolution, Behavior and Systematics |
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