The goal of this research is phytoremediation of uranium-contaminated soil. In the preliminary investigation, Macleaya cordata (Willd.) R. Br. was found to grow in abundance around uranium tailings. Afterward, the field tests to remove uranium from the contaminated soil by the M. cordata (Willd.) R. Br. were conducted. After 3 years of treatment, the contents of uranium in the shallow, middle, and deep layers decreased by 51.2%, 16.6%, and 90.3%, respectively, indicating the transfer of uranium from the tailings. The content of uranium in the roots, stems, and leaves of M. cordata that had been planted for 3 years was significantly higher than that in the first year, indicating the transfer of uranium to M. cordata (The uranium content of the part of M. cordata underground is 1.870 ± 0.288 mg/kg and the content in the aboveground part is 79.815 ± 0.911 mg/kg after 3 years). The results of Mi-Seq indicated that microbial communities were exposed to variations and that microbes, such as Bacillus, Lactococcus, Nitrosomonadaceae, and Roseiflexus, were involved in the remediation of uranium-contaminated soil, demonstrating that the reduced uranium content in the tailings is a result of the joint action by plants and microbes. An infrared analysis indicated that the -OH and COO- groups are the main functional groups in M. cordata involved in the bioconcentration of uranium. Moreover, as time advances, the uranium in the tailings was readily concentrated by the plant, demonstrating that the remediation of radioactive contamination by M. cordata is viable.

中文翻译：

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Macleaya cordata (Willd.) R. Br. 对铀尾矿进行植物修复的现场试验。

这项研究的目标是对受铀污染的土壤进行植物修复。在初步调查中，Macleaya cordata (Willd.) R. Br. 被发现在铀尾矿周围大量生长。之后，通过M. cordata (Willd.) R. Br.进行现场测试以从受污染的土壤中去除铀。进行了。经过3年的处理，浅、中、深层铀含量分别下降了51.2%、16.6%和90.3%，表明铀从尾矿中转移。种植 3 年的海棠根、茎和叶中铀的含量显着高于第一年，表明铀向海棠转移（M. cordata地下部分的铀含量为1.870±0.288 mg/kg，3年后地上部分的含量为79.815±0.911 mg/kg）。Mi-Seq结果表明，微生物群落暴露于变异，芽孢杆菌、乳球菌、亚硝化单胞菌科和蔷薇属等微生物参与了铀污染土壤的修复，表明尾矿中铀含量的降低是植物和微生物共同作用的结果。红外分析表明，-OH 和 COO- 基团是M. cordata的主要官能团参与铀的生物浓缩。此外，随着时间的推移，尾矿中的铀很容易被工厂浓缩，这表明M. cordata对放射性污染的修复是可行的。