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Uptake of uranium by native aquatic plants: potential for bioindication and phytoremediation

机译：天然水生植物的吸收铀：生物威胁和植物的潜力

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The work presented here is a part the on going study on the uraniferous geochemical province of Central Portugal in which, the use of aquatic plants as indicators of uranium contamination is being probed using aquatic plants emphasizing their potential use in the emerging phytotechnologies. Even though we have observed very low concentration of U in the fresh waters of the studied sites we found a set of vegetable species with the ability to accumulate U in concentrations which are orders of magnitude higher than the surrounding environment. We have observed that Apium nodiflorum, Callitriche stagnalis, Lemna minor and Fontinalis antipyretica accumulated significant amounts of uranium, whereas Oenanthe crocata excluded U. These results indicate substantial scope for proper radiophytoremediation and phytosociological investigation exploiting the native flora. These species show great potential for phytoremediation because they are endemic and easy to grow in their native conditions. A. nodiflorum and C. stagnalis have high bioproductivity and yield good biomass.
机译：这里提出的工作是关于中央葡萄牙乌苏地球化学省的开展研究的一部分，其中使用水生植物作为铀污染指标的使用，并使用水生植物强调他们在新兴植物技术中的潜在用途。尽管我们在研究的遗址的新鲜水域中观察到u的浓度非常低，但我们发现一套蔬菜种类具有积聚u的浓度，这些物种是比周围环境高的数量级。我们观察到，芹菜nodiflorum，水马齿，浮萍和鲑antipyretica积累显著量的铀，而水芹crocata排除U.这些结果表明适当radiophytoremediation和植物社会学调查与开发利用原生植物实质性范围。这些物种对植物修复的巨大潜力显示出巨大的潜力，因为它们是流行的，并且在其本地条件下易生长。 A. Nodiflorum和C. Stagnalis具有高生物制造率并产生良好的生物质。

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