光催化
辐照
细菌
水平基因转移
灭菌(经济)
光化学
化学
闪锌矿
微生物
传输效率
环境化学
微生物学
生物物理学
生物
矿物学
生物化学
基因
催化作用
遗传学
生化工程
物理
核物理学
系统发育树
经济
工程类
外汇市场
货币经济学
黄铁矿
外汇
作者
Hongliang Yin,Xiaofang Chen,Guiying Li,Wanjun Wang,Po Keung Wong,Taicheng An
标识
DOI:10.1016/j.apcatb.2021.119977
摘要
Antibiotic-resistance genes (ARGs) dissemination in water environment has raised concerns worldwide. Here, antibiotic-resistant bacteria (ARB) were exposed to the interface of natural sphalerite (NS) irradiated by different light sources (UV254nm, UV365nm, simulated sunlight (SS), and visible light (VL)) in water and their effects on ARG conjugative transfer were studied. The conjugative transfer frequency increased 2- to 10-fold under exposure to Photocatalysis (PC)NS+UV254nm or PCNS+VL and 1- to 2-fold under PCNS+UV365nm or PCNS+SS. During exposure, bacteria were directly stimulated by light irradiation or spontaneous photocatalytic inactivation, triggering oxidative stress, DNA repair, cell repair and transfer regulation of ARB. These results indicated that ARG transfer could be promoted once ARB involving in this environmental PC interface. This new viewpoint revealed that natural minerals with natural light irradiation play an important role in ARG dissemination. Besides, this study provided more detailed information for practical application of PC sterilization and control of ARG transfer.
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