Toxic effects of combined effects of anthracene and UV radiation on Brachionus plicatilis

International Symposium on Resource Exploration and Environmental Science

地球科学;生态环境科学

Gao, Ceng^1 ; Zhang, Xinxin^1 ; Xu, Ningning^1 ; Tang, Xuexi^1

College of Marine Life Science, Ocean University of China, Qingdao

266003, China^1

关键词: Antioxidant enzyme;    Brachionus plicatilis;    Combined effect;    Lethal concentration;    Oxidative damage;    Oxidative metabolism;    Photo-activities;    Ultra-violet light;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/64/1/012121/pdf
DOI  :  10.1088/1755-1315/64/1/012121

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Anthracene is a typical polycyclic aromatic hydrocarbon, with photo activity, can absorb ultraviolet light a series of chemical reactions, aquatic organisms in the ecosystem has a potential light induced toxicity. In this paper, the effects of anthracene and UV radiation on the light-induced toxicity of Brachionus plicatilis were studied. The main methods and experimental results were as follows: (1) The semi-lethal concentration of anthracene in UV light was much lower than that in normal light, The rotifers have significant light-induced acute toxicity. (2) Under UV irradiation, anthracene could induce the increase of ROS and MDA content in B. plicatilis, and the activity of antioxidant enzymes in B. plicatilis significantly changed, Where SOD, GPx activity was induced within 24 hours of the beginning of the experiment. And the content of GPX and CAT was inhibited after 48 hours. Therefore, the anthracite stress induced by UV radiation could more strongly interfere with the ant oxidative metabolism of B. plicatilis, and more seriously cause oxidative damage, significant light-induced toxicity.