Loading...
Please wait, while we are loading the content...
Similar Documents
Plant Cd$ ^{2+}$ and Zn$ ^{2+}$ status effects on root and shoot heavy metal accumulation in Thlaspi caerulescens
| Content Provider | Scilit |
|---|---|
| Author | Papoyan, Ashot Piñeros, Miguel Kochian, Leon V. |
| Copyright Year | 2007 |
| Description | Journal: New Phytologist • In this study we address the impact of changes in plant heavy metal, (i.e. zinc (Zn) and cadmium (Cd)) status on metal accumulation in the Zn/Cd hyperaccumulator, Thlaspi caerulescens. • Thlaspi caerulescens plants were grown hydroponically on both high and low Zn and Cd regimes and whole-shoot and -root metal accumulation, and root$ ^{109}Cd^{2+}$ influx were determined. • High-Zn-grown (500 µm Zn) plants were found to be more Cd-tolerant than plants grown in standard Zn conditions (1 µm Zn). Furthermore, shoot Cd accumulation was significantly greater in the high-Zn-grown plants. A positive correlation was also found between shoot Zn accumulation and increased plant Cd status. Radiotracer$ ^{109}$Cd root flux experiments demonstrated that high-Zn-grown plants maintained significantly higher root $Cd^{2+}$ influx than plants grown on 1 µm Zn. It was also found that both nickel (Ni) and copper (Cu) shoot accumulation were stimulated by high plant Zn status, while manganese (Mn) accumulation was not affected. • A speculative model is presented to explain these findings, suggesting that xylem loading may be one of the key sites responsible for the hyperaccumulation of Zn and Cd accumulation in Thlaspi caerulescens. |
| Related Links | https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8137.2007.02073.x |
| Ending Page | 58 |
| Page Count | 8 |
| Starting Page | 51 |
| e-ISSN | 14698137 |
| DOI | 10.1111/j.1469-8137.2007.02073.x |
| Journal | New Phytologist |
| Issue Number | 1 |
| Volume Number | 175 |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2007-04-18 |
| Access Restriction | Open |
| Subject Keyword | Journal: New Phytologist Hyperaccumulation Thlaspi Caerulescens |
| Content Type | Text |
| Resource Type | Article |
