Positive relationship detected between soil bioaccessible organic pollutants and antibiotic resistance genes at dairy farms in Nanjing, Eastern China. (November 2015)

• Record Type: Journal Article
• Authors: Sun, Mingming; Ye, Mao; Wu, Jun; Feng, Yanfang; Wan, Jinzhong; Tian, Da; Shen, Fangyuan; Liu, Kuan; Hu, Feng; Li, Huixin; Jiang, Xin; Yang, Linzhang; Kengara, Fredrick Orori
• Is Part Of: Environmental pollution. Volume 206(2015)
• Page Start: 421
• Page End: 428
• Publication Date: 2015-11
• Subjects: Antibiotic resistance genes -- Bioaccessible pollutants -- Class 1 integron -- Correlation; Pollution -- Periodicals; Pollution -- Environmental aspects -- Periodicals; Environmental Pollution -- Periodicals; Pollution -- Périodiques; Pollution -- Aspect de l'environnement -- Périodiques; Pollution -- Effets physiologiques -- Périodiques; Pollution; Pollution -- Environmental aspects; Periodicals; Electronic journals; 363.73
• DOI: 10.1016/j.envpol.2015.07.022
• Languages: English
• ISSNs: 0269-7491

Abstract

Abstract: Co-contaminated soils by organic pollutants (OPs), antibiotics and antibiotic resistance genes (ARGs) have been becoming an emerging problem. However, it is unclear if an interaction exists between mixed pollutants and ARG abundance. Therefore, the potential relationship between OP contents and ARG and class 1 integron-integrase gene ( intI 1) abundance was investigated from seven dairy farms in Nanjing, Eastern China. Phenanthrene, pentachlorophenol, sulfadiazine, roxithromycin, associated ARG genes, and intI 1 had the highest detection frequencies. Correlation analysis suggested a stronger positive relationship between the ARG abundance and the bioaccessible OP content than the total OP content. Additionally, the significant correlation between the bioaccessible mixed pollutant contents and ARG/ intI 1 abundance suggested a direct/indirect impact of the bioaccessible mixed pollutants on soil ARG dissemination. This study provided a preliminary understanding of the interaction between mixed pollutants and ARGs in co-contaminated soils. Highlights: Coexistence of OPs, antibiotics, and ARGs in dairy farm soils was ubiquitous. Bioaccessible pollutants exhibited positive correlation with ARG abundance. ARGs significantly correlated with int I1. Bioaccessible pollutants demonstrated strong correlation with int I1. The int I1 gene might serve as a potential proxy for mixed pollution. Abstract : Coexistence of mixed OPs and ARGs in dairy farm soils was ubiquitous; a positive correlation can be found between the bioaccessible OP fractions and ARG/ intI 1 abundance.