Assessment of Cs and Sr accumulation in two epiphytic species of Tillandsia (Bromeliaceae) in vitro
| Autor: | Peng Li, Robert W. Pemberton, Guiling Zheng |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Pollutant Ecology biology Tillandsia Chemistry Bromeliaceae 010501 environmental sciences Contamination biology.organism_classification 01 natural sciences In vitro Phytoremediation Botany General Earth and Planetary Sciences Epiphyte Nuclide Ecology Evolution Behavior and Systematics 010606 plant biology & botany 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Chemistry and Ecology. 33:51-60 |
| ISSN: | 1029-0370 0275-7540 |
| Popis: | Multiple nuclides commonly occur together and exert toxicity simultaneously, but the difference between single and combined effects of the nuclides is rarely investigated. Epiphytic Tillandsia species are efficient air pollution biomonitors, but rarely used to monitor nuclide contamination. Two Tillandsia species, that is, T. brachycaulos and T. stricta, were chosen to test their capacity to accumulate Cs and Sr. Most plants were able to endure Cs and Sr stress for a long period, which suggested these species could resist toxic elements physiologically and metabolically. With the increasing Cs or Sr concentrations, nuclide contents in both species increased significantly, indicating the potential of Tillandsia species in monitoring nuclide pollutants. However, when the plants were treated with combined nuclides, the content of each ion decreased distinctly compared to those treated with single ion, which suggested Cs and Sr influenced and inhibited each other. In addition, T. brachycaulos seemed m... |
| Databáze: | OpenAIRE |
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