Micro-distribution of arsenic and polycyclic aromatic hydrocarbons and their interaction in Pteris vittata L.
文献类型：期刊论文
| 作者 | Liao, Xiao-Yong2; Gong, Xue-Gang2,3; Zhang, Li-Li4; Cassidy, Daniel P.1 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2021-09-15 |
| 卷号 | 285页码:9 |
| 关键词 | PAHs As Co-contamination Phytoremediation Interaction Pteris vittata L |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2021.117250 |
| 通讯作者 | Liao, Xiao-Yong(liaoxy@igsnrr.ac.cn) |
| 英文摘要 | Interactive effects of inorganic arsenic (As) species and polycyclic aromatic hydrocarbons (PAHs) on their uptake, accumulation and translocation in the hyperaccumulator Pteris vittata L. (P. vittata) were studied hydroponically. The presence of PAHs hindered As uptake and acropetal translocation by P. vittata, decreasing As concentrations by 29.8%-54.5% in pinnae, regardless of the initial As speciation. The inhibitive effect of PAHs was 1.6-8.7 times greater for arsenite [As(III)] than for arsenate [As(V)]. Similarly, inorganic As inhibited the uptake of fluorene (FLU) and benzo[a]pyrene (BaP) by P. vittata roots by 0.4%-21.7% and by 33.1%-69.7%, respectively. Interestingly, coexposure to As and PAHs slightly enhanced the translocation of PAHs by P. vittata with their concentrations increased 0.3 to 0.8 times in shoots, except for the As(III)+BaP treatment. The antagonistic interaction between As and PAHs uptake is likely caused by competitive inhibition or oxidative stress injury. By using synchrotron radiation micro X-ray fluorescence imaging, high concentrations of As were found distributed throughout the microstructures far from main vein of the pinnae when coexposed with PAHs, the opposite of what was observed with exposure to As only. PAHs could also significantly inhibit the accumulation and distribution of As in vascular bundles in rachis treated with As(III). The results of two-photon laser scanning confocal microscopy revealed that PAHs were mainly distributed in the vascular cylinder, epidermal cells, vascular bundles, epidermis and vein tissues, and this was independent of As speciation and treatment. This work offers new positive evidence for the interaction between As and PAHs in P. vittata, presents new information on the underlying mechanisms for interactions of As and PAHs affecting their uptake and translocation within P. vittata L., and provides direction for future research on the mechanisms of PAHs uptake by plants. |
| WOS关键词 | CO-CONTAMINATED SOIL ; PLANT-CELL CULTURES ; ACROPETAL TRANSLOCATION ; AGRICULTURAL SOILS ; SEWAGE-SLUDGE ; HEAVY-METALS ; PHENANTHRENE ; PHYTOREMEDIATION ; PAHS ; ACCUMULATION |
| 资助项目 | National Key Research and Development Program of China[2017YFD0800900] ; Program of National Science and Technology Basic Works of the Ministry of Science and Technology of China[2015FY111300] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000685347100010 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Key Research and Development Program of China ; Program of National Science and Technology Basic Works of the Ministry of Science and Technology of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164619]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liao, Xiao-Yong |
| 作者单位 | 1.Western Michigan Univ, Dept Geol & Environm Sci, Kalamazoo, MI 49008 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing Key Lab Environm Damage Assessment & Reme, Beijing 100101, Peoples R China 3.Beijing Gen Res Inst Min & Met Technol Grp, Beijing 100160, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, Xiao-Yong,Gong, Xue-Gang,Zhang, Li-Li,et al. Micro-distribution of arsenic and polycyclic aromatic hydrocarbons and their interaction in Pteris vittata L.[J]. ENVIRONMENTAL POLLUTION,2021,285:9. |
| APA | Liao, Xiao-Yong,Gong, Xue-Gang,Zhang, Li-Li,&Cassidy, Daniel P..(2021).Micro-distribution of arsenic and polycyclic aromatic hydrocarbons and their interaction in Pteris vittata L..ENVIRONMENTAL POLLUTION,285,9. |
| MLA | Liao, Xiao-Yong,et al."Micro-distribution of arsenic and polycyclic aromatic hydrocarbons and their interaction in Pteris vittata L.".ENVIRONMENTAL POLLUTION 285(2021):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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