Construction of the Syngonium podophyllum-Pseudomonas sp XNN8 Symbiotic Purification System and Investigation of Its Capability of Remediating Uranium Wastewater
Construction of the Syngonium podophyllum-Pseudomonas sp XNN8 Symbiotic Purification System and Investigation of Its Capability of Remediating Uranium Wastewater
复制标题
鬼臼-假单胞菌XNN8共生净化系统的构建及其修复铀废水的能力研究
DOI：
10.1007/s11356-016-6392-z
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发表时间：
2017
影响因子：
5.8
通讯作者：
Xu Fei
中科院分区：
文献类型：
--
作者：
Deng Qin-wen;Wang Yong-dong;Ding De-xin;Hu Nan;Sun Jing;He Jia-dong;Xu Fei
从香蒲（Typha orientalis）中分离到一株能分泌吲哚-3-乙酸和1-氨基环丙烷-1-羧酸脱氨酶及铁载体的内生菌Pseudomonassp.XNN8，该菌对铀具有较强的抗性，并在合果木（Syngoniumpodophylum）中定殖，其S.构建了鬼臼-假单胞菌XNN 8共生净化系统（SPPSPS）。然后，进行了SPPSPS处理含铀废水的水培试验。经过24 d的处理，铀浓度在0.5 ~ 5.0mg/L之间的废水样品的铀浓度降低到0.05mg/L以下。此外，利用傅里叶变换红外光谱（FTIR）和扩展X射线吸收精细结构（EXAFS）光谱分析了植物中的铀。假单胞菌XNN 8能在合果木根部产生大量的有机基团，从而提高S. podophyllum铀。S.鬼臼类化合物中磷酸双氧铀（47.4%）和乙酸双氧铀（52.6%）的含量较高。
The endophytePseudomonas sp. XNN8 was separated fromTypha orientaliswhich can secrete indole-3-acetic acid and 1-aminocyclopropane-1-carboxylate deaminase and siderophores and has strong resistance to uranium it was then colonized in theSyngonium podophyllum; and theS. podophyllum-Pseudomonas sp. XNN8 symbiotic purification system (SPPSPS) for uranium-containing wastewater was constructed. Afterwards, the hydroponic experiments to remove uranium from uranium-containing wastewater by the SPPSPS were conducted. After 24 days of treatment, the uranium concentrations of the wastewater samples with uranium concentrations between 0.5 and 5.0 mg/L were lowered to below 0.05 mg/L. Furthermore, the uranium in the plants was assayed using Fourier transform infrared spectroscopy (FTIR) and extended X-ray absorption fine structure (EXAFS) spectroscopy. ThePseudomonas sp. XNN8 was found to generate substantial organic groups in the roots of theSyngonium podophyllum, which could improve the complexing capability ofS. podophyllumfor uranium. The uranium in the roots ofS. podophyllumwas found to be the uranyl phosphate (47.4 %) and uranyl acetate (52.6 %).