Detoxifying processes during kanamycin-induced stress toArabidopsis thalianaseedling growth
文献类型： 外文期刊
作者： Chen, Chen 1 ; Fu, Xiaoyan 1 ; Peng, Rihe 1 ; Tian, Yongsheng 1 ; Yao, Quanhong 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Biotechnol Res Inst, 2901 Beidird, Shanghai 201106, Peoples R China
关键词： Antibiotics; kanamycin; oxidative damage; detoxification; Arabidopsis thaliana
期刊名称：BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT （ 影响因子：1.632； 五年影响因子：2.029 ）
ISSN： 1310-2818
年卷期： 2020 年 34 卷 1 期
页码：
收录情况： SCI
摘要： The increasing antibiotic application in agriculture has raised a potential risk to human health worldwide. Although high concentrations of antibiotics are lethal for plants without a resistant gene, it is not clear what detoxifying processes act in plants under low antibiotic concentration.Arabidopsis thalianawas selected to characterize the effects of kanamycin antibiotic toxicity on seedling growth in MS plates and pots, respectively. We investigated only control plants treated with kanamycin; but without comparison with transgenic ones, since we had no positive control transgenic plants. Gene expression profiles from plant material in pots were evaluated by customized oligonucleotide microarray. Morphological investigation indicated that kanamycin concentration is negatively correlated withA. thalianaseedling growth. Gene expression profile analysis detected that 542 and 116 genes were up- and down-regulated over five-fold in leaf tissue under the influence of kanamycin. The glutathione S-transferase and peroxidase gene families were involved in antioxidant defense mechanisms by preventing the accumulation of toxic products of reactive oxygen species (ROS). An exceeding amount of ROS after antibiotic-induced oxidative burst stimulated several over-presented processes for the balance between ROS and antioxidants. The significant increase in detoxification enzymes may indicate that efficient antioxidant machinery is the main method to ensure survival.
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