Dissemination of antibiotic resistance under antibiotics pressure during anaerobic co-digestion of food waste and sludge: Insights of driving factors, genetic expression, and regulation mechanism


论文标题Dissemination of antibiotic resistance under antibiotics pressure during anaerobic co-digestion of food waste and sludge: Insights of driving factors, genetic expression, and regulation mechanism

论文作者Panliang Wang, Dong Wu, Yinglong Su, Xunan Li, Bing Xie *

文章简介

       本研究探究了三种抗生素对城市有机固废厌氧消化过程中抗生素耐药基因(ARGs)传播的影响及其调控机制。结果表明,抗生素显著提高了ARGs的丰度,并选择性富集整合子基因,证实抗生素促进厌氧消化过程中ARGs的传播。Procrustes分析表明,细菌群落、整合子和理化性质与ARGs的相关性显著,并且对ARGs变化的贡献率分别达到10.61%6.94%2.97%。其中,细菌群落和整合子的联合贡献最大(48.6%),证明它们对ARGs的传播具有重要意义。宏转录组分析显示,抗生素暴露上调了总ARGs和毒力因子的表达,增加了潜在抗性和致病风险。机制分析表明抗生素促进ARGs传播可能与抗生素诱导DNA/细胞损伤和接合转移的调控功能变化有关。






全文链接地址https://doi.org/10.1016/j.biortech.2021.126257

该论文发表在SCI一区刊物Bioresource Technology(影响因子:9.642)。我院2018级环境工程博士研究生王盼亮为第一作者,谢冰教授为通讯作者。