Ke Jing, Ying Li, Jing Li, Chenxue Jiang, Yinghao Li, Chi Yao
{"title":"接收经处理废水的溪流中生物膜的抗生素生物转化潜力:生物降解机制与细菌群落结构。","authors":"Ke Jing, Ying Li, Jing Li, Chenxue Jiang, Yinghao Li, Chi Yao","doi":"10.1016/j.chemosphere.2024.143636","DOIUrl":null,"url":null,"abstract":"<div><div>Antibiotics are a widely distributed and effective antibacterial agents. Human medical treatment and livestock aquaculture are major sources of antibiotics in aquatic ecosystems, potentially damaging the biofilms that are the foundation of stream food webs. In this study, we conducted antibiotic biotransformation experiments using biofilms cultured in streams upstream and downstream of a wastewater treatment plant outlet to distinguish different fate processes of antibiotics in biofilms. It was found that stream biofilms have biotransformation potential mainly for specific sulfonamide antibiotics. <em>Flavobacterium</em> and <em>Dyadobacter</em> were identified to be associated with biofilm biotransformation of antibiotics by 16S rDNA sequencing. Besides, microorganisms released from treated wastewater integrated into downstream biofilm communities, thereby enhancing the biotransformation potential of downstream biofilm communities compared to upstream biofilm. These findings enriched the understanding of the biotransformation of micropollutants by stream biofilms, and to thus promote the development of biofilm-based monitoring technologies.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Antibiotic biotransformation potential of biofilms in streams receiving treated wastewater effluent: Biodegradation mechanism and bacterial community structure\",\"authors\":\"Ke Jing, Ying Li, Jing Li, Chenxue Jiang, Yinghao Li, Chi Yao\",\"doi\":\"10.1016/j.chemosphere.2024.143636\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Antibiotics are a widely distributed and effective antibacterial agents. Human medical treatment and livestock aquaculture are major sources of antibiotics in aquatic ecosystems, potentially damaging the biofilms that are the foundation of stream food webs. In this study, we conducted antibiotic biotransformation experiments using biofilms cultured in streams upstream and downstream of a wastewater treatment plant outlet to distinguish different fate processes of antibiotics in biofilms. It was found that stream biofilms have biotransformation potential mainly for specific sulfonamide antibiotics. <em>Flavobacterium</em> and <em>Dyadobacter</em> were identified to be associated with biofilm biotransformation of antibiotics by 16S rDNA sequencing. Besides, microorganisms released from treated wastewater integrated into downstream biofilm communities, thereby enhancing the biotransformation potential of downstream biofilm communities compared to upstream biofilm. These findings enriched the understanding of the biotransformation of micropollutants by stream biofilms, and to thus promote the development of biofilm-based monitoring technologies.</div></div>\",\"PeriodicalId\":276,\"journal\":{\"name\":\"Chemosphere\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2024-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemosphere\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0045653524025360\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemosphere","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0045653524025360","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Antibiotic biotransformation potential of biofilms in streams receiving treated wastewater effluent: Biodegradation mechanism and bacterial community structure
Antibiotics are a widely distributed and effective antibacterial agents. Human medical treatment and livestock aquaculture are major sources of antibiotics in aquatic ecosystems, potentially damaging the biofilms that are the foundation of stream food webs. In this study, we conducted antibiotic biotransformation experiments using biofilms cultured in streams upstream and downstream of a wastewater treatment plant outlet to distinguish different fate processes of antibiotics in biofilms. It was found that stream biofilms have biotransformation potential mainly for specific sulfonamide antibiotics. Flavobacterium and Dyadobacter were identified to be associated with biofilm biotransformation of antibiotics by 16S rDNA sequencing. Besides, microorganisms released from treated wastewater integrated into downstream biofilm communities, thereby enhancing the biotransformation potential of downstream biofilm communities compared to upstream biofilm. These findings enriched the understanding of the biotransformation of micropollutants by stream biofilms, and to thus promote the development of biofilm-based monitoring technologies.
期刊介绍:
Chemosphere, being an international multidisciplinary journal, is dedicated to publishing original communications and review articles on chemicals in the environment. The scope covers a wide range of topics, including the identification, quantification, behavior, fate, toxicology, treatment, and remediation of chemicals in the bio-, hydro-, litho-, and atmosphere, ensuring the broad dissemination of research in this field.