Distribution and evolution of certain antibiotic resistance genes in different environmental media in Hulunbuir GrasslandOA
We measured the relative abundance of antibiotic resistance genes(ARGs)related to the treatment of brucellosis by quantitative real-time polymerase chain reaction(PCR),characterized the bacterial composition by 16S rRNA gene sequencing,and analysed the relationships between ARGs and bacteria by network analyses in multiple environmental media samples(rainwater,topsoil and PM_(2.5))collected in the summers from 2019 to 2021.The three environmental media of Hulunbuir Grassland were contaminated with some degree of ARGs with the highest ARG abundance in the topsoil.Significant relationships were observed between ARGs and bacteria,thereby promoting the spread of antibiotic resistance.Extensive distribution of ARG carrying bacteria in atmospheric particles,rainwater,and soil may also increase potential ARG exposure risks.These findings are valuable in understanding the ARG pollution levels and distribution characteristics in three environmental media,which can aid to design and implement policies to curb ARGs in local areas.
LI Yuanyuan;GUO Li;DU Rui;ZHAO Hua;JIA Zeyu
College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,ChinaCollege of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,ChinaCollege of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,ChinaCollege of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,ChinaCollege of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,China
资源环境
ARGsdistributionabundanceevolutionmultiple environmental mediaHulunbuir Grassland
《中国科学院大学学报(中英文)》 2026 (3)
P.336-349,14
Supported by the National Natural Science Foundation of China(41775135,42275138)。
评论