生态与农村环境学报2025，Vol.41Issue(3)：420-429,10.DOI:10.19741/j.issn.1673-4831.2023.0729
叶面喷施硒肥对生菜中抗生素及抗性基因的消减效果研究
The Effect of Foliar Application of Selenium Fertilizer on Reduction of Antibiotics and Antibiotic Resistance Genes in Lettuce
摘要
Abstract
To mitigate the dissemination and transmission of antibiotics and antibiotic resistance genes(ARGs)in both rhizosphere soil and vegetables,the experiment of growing lettuce(Lactuca sativa)in pots was conducted in a greenhouse by foliar application of selenium fertilizer.The self-developed biosynthetic nano-selenium and the commonly used sodium selenite were used as test selenium fertilizers in this study.The results show that the foliar application of selenium fertiliz-ers could obviously reduce the contents of tetracycline,oxytetracycline,sulfamethoxazole,sulfadimethoxine,norfloxacin,and enrofloxacin in lettuces and their rhizosphere soil.The decrease rates of target antibiotics ranged from 38.1%to 100%in lettuce leaves,13.4%to 100%in lettuce roots,and 3.8%to 71.0%in the rhizosphere soil.The foliar application of selenium fertilizers resulted in a marked decrease in the absolute abundance of ARGs in lettuces and rhizosphere soil.The decrease rates of target ARGs ranged from 11.8%to 87.0%in lettuce leaves,5.9%to 100%in lettuce roots,and 1.5%to 78.3%in the rhizosphere soil.The application also significantly(P<0.05)decreased the absolute abundance of mobile genetic elements(MGEs),which were the main factors in inhibiting the ARGs transfer within the soil-lettuce system.In general,the foliar application of biosynthetic nano-selenium had better effect on the reduction of antibiotics and ARGs in lettuces.关键词
硒肥/叶面喷施/抗生素/抗生素抗性基因/消减效果Key words
selenium fertilizer/foliar application/antibiotics/antibiotic resistance genes/reduction effects分类
资源环境引用本文复制引用
洪畅,靳红梅,朱燕云,朱宁..叶面喷施硒肥对生菜中抗生素及抗性基因的消减效果研究[J].生态与农村环境学报,2025,41(3):420-429,10.基金项目
江苏省科技项目(社会发展-重大科技示范项目)(BE2022788) （社会发展-重大科技示范项目）
国家自然科学基金青年科学基金(42107026) （42107026）
