MOLECULAR LEVEL CHARACTERIZATION OF HEAVY METAL SPECIATION IN CREOSOTE TISSUE

三齿拉雷草(杂色油灌木)遍及各处。 西南部地区往往处于重金属污染地区。样本 采集的杂酚油灌木中含有大量的铜和铅 污染。对拉雷拉的根、茎和叶进行了分析 金属。这些数据证明了三齿斑潜蝇的摄取能力 重金属污染土壤中的铜、铅。植物 积累重金属污染物可用于一种新兴的 这项技术被称为植物修复。植物修复技术保持了 承诺成为目前唯一具有成本效益的流程 用于去除金属污染物的地平线。初步的XAS数据是 以帮助阐明金属结合的复杂性质 叶、根和茎组织中的作用机制。取得的成果 有助于我们理解植物的能力 隔离金属。这一知识将增加对 杂酚油缓解土壤重金属污染 植物修复应用。

Larrea tridentata (creosote bushes) are found growing throughout the southwest often in regions of heavy metal contamination. Samples of creosote bushes were collected with high copper, and lead contamination. Larrea roots, stems and leaves were analyzed for these metals. The data demonstrate Larrea tridentata's ability to uptake copper, and lead from heavy metal contaminated soils. Plants which accumulate heavy metal contaminants can be used in an emerging technique know as phytoremediation. Phytoremediation holds the promise of being the only cost effective process currently on the horizon for removing metal contaminates. Preliminary XAS data were obtained to help elucidate the complex nature of metal binding mechanisms in the leaves, roots and stem tissues. Results obtained have contributed to our understanding of the plants ability to sequester metals. This knowledge will increase the potential use of creosote to alleviate heavy metal contaminated soils in phytoremediation applications.