Influence of Speciation of Thorium on Toxic Effects to Green Algae Chlorella pyrenoidosa
文献类型：期刊论文
| 作者 | Wang DQ(王东琪) ; Lan T(兰图); Zhang P(张鹏); He X(何潇); Ding YY(丁雅韵); Ma YH(马宇辉); Peng, C; Zhang, ZH; Zhang, ZY; Wang, DQ
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| 刊名 | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
 |
| 出版日期 | 2017 |
| 卷号 | 18期号:4页码:795 |
| 关键词 | thorium speciation toxicity green algae Chlorella pyrenoidosa |
| ISSN号 | 1422-0067 |
| DOI | 10.3390/ijms18040795 |
| 文献子类 | Article |
| 英文摘要 | Thorium (Th) is a natural radioactive element present in the environment and has the potential to be used as a nuclear fuel. Relatively little is known about the influence and toxicity of Th in the environment. In the present study, the toxicity of Th to the green algae Chlorella pyrenoidosa (C. pyrenoidosa) was evaluated by algal growth inhibition, biochemical assays and morphologic observations. In the cultural medium (OECD TG 201), Th(NO3)(4) was transformed to amorphous precipitation of Th(OH)(4) due to hydrolysis. Th was toxic to C. pyrenoidosa, with a 96 h half maximum effective concentration (EC50) of 10.4 mu M. Scanning electron microscopy shows that Th-containing aggregates were attached onto the surface of the algal cells, and transmission electron microscopy indicates the internalization of nano-sized Th precipitates and ultrastructural alterations of the algal cells. The heteroagglomeration between Th(OH)(4) precipitation and alga cells and enhanced oxidative stress might play important roles in the toxicity of Th. To our knowledge, this is the first report of the toxicity of Th to algae with its chemical species in the exposure medium. This finding provides useful information on understanding the fate and toxicity of Th in the aquatic environment. |
| WOS关键词 | CARBON NANOTUBES ; WATER ; NANOPARTICLES ; GROWTH ; CERIUM ; STATE ; SIZE |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000402639400119 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285213]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wang DQ,Lan T,Zhang P,et al. Influence of Speciation of Thorium on Toxic Effects to Green Algae Chlorella pyrenoidosa[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2017,18(4):795. |
| APA | 王东琪.,兰图.,张鹏.,何潇.,丁雅韵.,...&张智勇.(2017).Influence of Speciation of Thorium on Toxic Effects to Green Algae Chlorella pyrenoidosa.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,18(4),795. |
| MLA | 王东琪,et al."Influence of Speciation of Thorium on Toxic Effects to Green Algae Chlorella pyrenoidosa".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 18.4(2017):795. |
入库方式： OAI收割
来源：高能物理研究所
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