Water Lettuce Pistia stratiotes L. Response to Lead Toxicity
| العنوان: | Water Lettuce Pistia stratiotes L. Response to Lead Toxicity |
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| المؤلفون: | Tomas Vesely, M. Neuberg, Lukáš Trakal, Jiřina Száková, Pavel Tlustoa |
| المصدر: | Water, Air, & Soil Pollution. 223:1847-1859 |
| بيانات النشر: | Springer Science and Business Media LLC, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | Environmental Engineering, biology, Chemistry, Ecological Modeling, Rhizofiltration, Biomass, Phytoextraction process, biology.organism_classification, Pollution, Macrophyte, chemistry.chemical_compound, Environmental chemistry, Chlorophyll, Botany, Environmental Chemistry, Pistia, Stratiotes, Chelation, Water Science and Technology |
| الوصف: | The effects of one of the most toxic heavy metals, lead (Pb), applied in two different concentrations and combined with chelate application were investigated on the water macrophyte (Pistia stratiotes L.) physiology. The influences were observed by the chlorophyll and free amino acid content determination. Also the lead accumulation in macrophyte biomass was investigated to assess the potential efficiency of this plant for rhizofiltration of highly Pb-polluted water. Na EDTA and Na citrate were used as chelates and Pb(NO3)2 as lead supplement. The application of organic chelates simulated conditions of an induced phytoextraction process. Statistical analyses were performed as a one-way ANOVA with a subsequent Tukey HSD test at a level of P < 0.05. Pb contents in both root and leaf tissues gradually increased with increasing Pb concentrations in the nutrient solution. More lead was accumulated in leaves than in roots within all treatments. The total chlorophyll content decreased with increased Pb concentration and with a higher content of chelates. The chelate addition increased the total amino acid content in leaves but decreased the total amino acid content in roots. The addition of lead with chelates decreased the dry biomass weight. However, water macrophyte showed extremely high lead accumulation in biomass in the short term (up to 8 days) and this accumulation potential could be used for relatively fast and effective decrease of high concentration of this risk element in contaminated water or sewage. |
| تدمد: | 1573-2932 0049-6979 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::9e2d705db4fc64ab92a80f5dfb836f36 https://doi.org/10.1007/s11270-011-0989-0 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........9e2d705db4fc64ab92a80f5dfb836f36 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15732932 00496979 |
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