High level of nickel tolerance and metal exclusion identified in silver maple (Acer saccharinum)
| Autor: | Ramya Narendrula-Kotha, Paul Michael, K. N. Kalubi, S. Rainville, Kabwe Nkongolo |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
chemistry.chemical_element Manganese Zinc 010501 environmental sciences 01 natural sciences Metal Botany Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences General Environmental Science Ecology biology Chemistry biology.organism_classification Silver maple Copper 6. Clean water Nickel visual_art Bioaccumulation Environmental chemistry Soil water visual_art.visual_art_medium General Earth and Planetary Sciences 010606 plant biology & botany |
| Zdroj: | Chemistry and Ecology. 33:795-806 |
| ISSN: | 1029-0370 0275-7540 |
| Popis: | Nickel (Ni) and copper (Cu) are the most prevalent metals found in the Greater Sudbury Region ecosystems. The main objectives of this study are to (1) assess silver maple (Acer saccharinum) tolerance to different doses of Ni and (2) determine the translocation pattern of metals in A. sacharinum. This study revealed that A. sacharinum is highly tolerant to high doses of NI (1600 and 9200 mg/kg). Growth chamber screening trials revealed that Ni is stored in roots and does not translocate to other plant parts. Analysis of samples from A. sacharinum growing for >30 years in soil contaminated with metals also showed that the levels of iron (Fe), manganese (Mn), Ni, and zinc (Zn) were significantly higher in roots compared with soils and aerial parts. On the other hand, the amount of Cu was higher in soil compared with roots and other plant parts. In fact, the bioaccumulation factors (BFs) were 0.29, 2.00, 3.6, 1.9, and 4.0 for Cu, Fe, Mn, Ni, and Zn, respectively. The translocation from roots to aerial... |
| Databáze: | OpenAIRE |
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