Effects of corresponding and non-corresponding contaminants on the fate of sulfonamide and quinolone resistance genes in the Laizhou Bay, China. (March 2018)

• Record Type: Journal Article
• Authors: Li, Qianwei; Na, Guangshui; Zhang, Linxiao; Lu, Zihao; Gao, Hui; Li, Ruijing; Jin, Shuaichen
• Is Part Of: Marine pollution bulletin. Volume 128(2018)
• Page Start: 475
• Page End: 482
• Publication Date: 2018-03
• Subjects: Laizhou Bay -- Sulfonamides resistance genes -- Quinolones resistance genes -- Non-corresponding contaminants -- Correlation; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2018.01.051
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: The environmental behaviors and migration patterns of antibiotic resistance genes (ARGs) have attracted considerable research interest. However, there has been little research concerning the effects of corresponding and non-corresponding contaminants on the fate of ARGs in coastal environments. In the present study, the distribution of intI1, sul1, sul2, qnr S and aac(6′)-Ib were analyzed in water and sediment samples of Laizhou Bay in the context of corresponding and non-corresponding contaminants. The abundance of intI1, sul1 and sul2 genes exhibited a clear decreasing trend extending from the inner estuary to the coastal area. Strong and positive correlations existed between sul1 / sul2 and sulfonamide antibiotic residues in sediments, and between the abundances of intI1 and sul1 / sul2 . Statistical analyses indicated that non-corresponding contaminants were partially correlated with ARG abundances. These results suggest that non-corresponding contaminants may have direct or indirect influences on the abundances of ARGs and intI1 in the Laizhou Bay. Highlights: The concentrations of ARGs exhibited a decreasing trend from estuary to coast. Estuary environments played a natural attenuator role on the distribution of ARGs. Non-corresponding contaminants may have influence on the abundances of ARGs.