Antibiotic resistance genes (ARGs) and their associated environmental factors in the Yangtze Estuary, China: From inlet to outlet

被引：57

作者：

Chen, Yu-ru ^{[1
]}

Guo, Xing-pan ^{[1
]}

Niu, Zuo-shun ^{[1
]}

Lu, Da-pei ^{[1
]}

Sun, Xiao-li ^{[1
]}

Zhao, Sai ^{[1
]}

Hou, Li-jun ^{[2
]}

Liu, Min ^{[1
,3
]}

Yang, Yi ^{[1
,2
]}

机构：

[1] East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, 500 Dongchuan Rd, Shanghai 200241, Peoples R China

[2] East China Normal Univ, State Key Lab Estuarine & Coastal Res, Minist Educ & Shanghai, Yangtze Delta Estuarine Wetland Ecosyst Observat, 3663 North Zhongshan Rd, Shanghai 200062, Peoples R China

[3] East China Normal Univ, Inst Ecochongming, 500 Dongchuan Rd, Shanghai 200241, Peoples R China

来源：

MARINE POLLUTION BULLETIN | 2020年 / 158卷

基金：

中国国家自然科学基金;

关键词：

Antibiotic resistance genes; Turbidity maximum zone; Suspended particulate matter; Yangtze Estuary; POLYCYCLIC AROMATIC-HYDROCARBONS; PEARL RIVER ESTUARY; SULFONAMIDE RESISTANCE; SURFACE SEDIMENTS; HEAVY-METALS; VERTICAL-DISTRIBUTION; PARTICULATE MATTERS; LAND APPLICATION; WASTE-WATER; BACTERIA;

D O I：

10.1016/j.marpolbul.2020.111360

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The occurrence of antibiotic resistance genes (ARGs) and their associated environmental factors in estuaries are poorly understood. In this study, we comprehensively analyzed ARGs in both water and sediments from inlet to outlet of the Yangtze Estuary, China. The relative abundances of ARGs were higher in the turbidity maximum zone (TMZ) than other sites, implying that suspended particulate matter (SPM) was the major reservoir for ARGs in water. ARGs showed an increasing trend from inlet to outlet in sediments. Positively correlation between intIl and sull in both water and sediments indicated that sull may be regulated by intIl. Correlation analysis and redundancy analysis showed that the spatial variations of estuarine ARGs were positively correlated with sample properties (e.g., temperature, SPM, pH) and chemical pollutants (e.g., heavy metals and antibiotic residues), among which chemical pollutants were the major drivers for the ARG distribution in both water and sediments.

引用

页数：9

共 82 条

[1] Molecular mechanisms of antibacterial multidrug resistance [J].