A potential involvement of plant systemic response in initiating genotoxicity of Ag-nanoparticles in Arabidopsis thaliana
文献类型:期刊论文
作者 | Wang, Ting; Wu, Jingjing; Xu, Shaoxin; Deng, Chenguang; Wu, Lijun; Wu, Yuejin; Bian, Po |
刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY |
出版日期 | 2019-04-15 |
卷号 | 170期号:无页码:324-330 |
ISSN号 | 0147-6513 |
关键词 | Ag-nanoparticles Homologous recombination-related genes Transcriptional gene silencing Salicylic acid Plant systemic response Arabidopsis thaliana |
DOI | 10.1016/j.ecoenv.2018.12.002 |
英文摘要 | The extensive availability of engineered nanomaterials in global markets has led to the release of substantial amounts of nanoparticles (NP) into atmosphere, water body and soil, yielding both beneficial and harmful effects in plant systems. The NP are mainly aggregated onto the surface of plant roots and leaves exposed and only slightly transported into other tissues with a low rate of internalization. This raises a question of whether plant systemic response is involved in the induction of biological effects of NP. To address this, model plant Arabidopsis thaliana were root exposed to low concentrations of Ag-NP of two particle sizes (10-nm and 60-nm), and expressions of homologous recombination (HR)-related genes and the alleviation of transcriptional gene silencing (TGS) in aerial leafy tissues were examined as genotoxic endpoints. Results showed that exposure of roots to two sizes of Ag-NP up-regulated expressions of HR genes, and reactivated TGS-silenced repetitive elements in aerial tissues. These effects were blocked by the impairment in the salicylic acid signal pathway, indicating a potential involvement of plant systemic response in the induction of Ag-NP genotoxicity. This is further supported by ICP-MS analysis, in which the Ag content in aerial tissues was not significantly changed by root exposure to 10-nm Ag-NP. Although a significant increase in the Ag content in aerial tissues was observed after root exposure to 60-nm Ag-NP, its genotoxic effects had no obvious difference from that by 10-nm Ag-NP exposure, also suggesting that the genotoxicity might be mainly induced via plant systemic response, at least in the experiments of root exposure to Ag-NP. |
WOS关键词 | SALICYLIC-ACID ; HOMOLOGOUS RECOMBINATION ; SILVER NANOPARTICLES ; SIGNAL ; GENE ; BIOACCUMULATION ; RESISTANCE ; RADIATION ; TOXICITY ; STRESS |
资助项目 | National Basic Research 973 Program[2014CB932002] ; National Natural Science Foundation of China[11575233] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017485] |
WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
语种 | 英语 |
出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
WOS记录号 | WOS:000456890700041 |
资助机构 | National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Basic Research 973 Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; 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National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/41757] |
专题 | 合肥物质科学研究院_技术生物与农业工程研究所 |
通讯作者 | Bian, Po |
作者单位 | Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Ting,Wu, Jingjing,Xu, Shaoxin,et al. A potential involvement of plant systemic response in initiating genotoxicity of Ag-nanoparticles in Arabidopsis thaliana[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2019,170(无):324-330. |
APA | Wang, Ting.,Wu, Jingjing.,Xu, Shaoxin.,Deng, Chenguang.,Wu, Lijun.,...&Bian, Po.(2019).A potential involvement of plant systemic response in initiating genotoxicity of Ag-nanoparticles in Arabidopsis thaliana.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,170(无),324-330. |
MLA | Wang, Ting,et al."A potential involvement of plant systemic response in initiating genotoxicity of Ag-nanoparticles in Arabidopsis thaliana".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 170.无(2019):324-330. |
入库方式: OAI收割
来源:合肥物质科学研究院
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