Potential Environmental Pollution: Toxicity of AgNPs to Tobacco BY-2 Cells

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Liu, Tao^1 ; Feng, Peng^1 ; Chen, Nannan^1 ; Gao, Ya^1 ; Zhou, Shumin^1 ; Liao, Xianyan^1 ; Huang, Junyi^1

School of Life Science, Shanghai University, Shanghai, China^1

关键词: Dose-dependent manner;    Environmental pollutions;    Exposure-time;    Programmed cell deaths;    Specific growth rate;    Suspension-cultured cells;    Tobacco BY-2 cells;    Toxic effect;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/5/052035/pdf
DOI  :  10.1088/1755-1315/170/5/052035

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The widespread use of nanomaterials results in the inevitable release of nanoparticles into the environment, including soil, water and plants, which are the main sinks for those nanoparticles. From the increasing social use of AgNPs, it is essential to understand their potential toxic effects on the environment. The objective of this study was to investigate the effects of AgNPs on the tobacco Bright Yellow-2 suspension-cultured cells. AgNPs exhibited inhibitory growth against BY-2 cells in a dose dependent manner. The specific growth rate (μ) was the first time to be used to explain the proliferation ability of cells in the nanoparticles toxicity studies. Results indicated that CAT seemed to be slightly more susceptible to high levels of oxidative stress comparison to SOD. AgNPs migrated steadily from cell wall to nucleus, which was related to the exposure time of AgNPs. The principal part of this study was focused on the ability of AgNPs to induce the processes of programmed cell death (PCD). Our results may fulfil the explanation of the toxic effect of these nanoparticles on plant cells.