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| Influence of water quality on sulfonamide resistance gene Sul1 |
| Received:September 11, 2017 |
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| KeyWord:sulfonamide resistance gene;water quality;influence |
| Author Name | Affiliation | E-mail | | LIU Lu | College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China | | | LIU Xuan | School of Environment, Dalian University of Technology, Dalian 116024, China | | | WANG Hua | College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
Fujian Provincial Key Laboratory of Ecology-toxicological Effects & Control for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas, Fujian Provincial University, College of Environmental and Biological Engineering, Putian University, Putian 351100, China | wanghua@dlou.edu.cn | | ZHAO Hui-min | School of Environment, Dalian University of Technology, Dalian 116024, China | | | YU Chun-yan | National Marine Environmental Monitoring Center, Dalian 116023, China | | | LENG Jin-hui | College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China | | | GENG Cong | College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China | | | LI Zhang-liang | Fujian Provincial Key Laboratory of Ecology-toxicological Effects & Control for Emerging Contaminants, Key Laboratory of Ecological Environment and Information Atlas, Fujian Provincial University, College of Environmental and Biological Engineering, Putian University, Putian 351100, China | |
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| Abstract: |
| In order to explore the influence of water quality on the mechanism of sulfonamide resistance gene transfer, the influence of pH, salinity, humic acid, total ammonia nitrogen, and phosphate on the content of sulfonamide resistance gene Sul1 was investigated using the absolute quantitative PCR method. It showed that, at neutral pH(6~8), the content of Sul1 was higher than that at pH 3~5 and pH 9~10, indicating a significant inhibitory effect(P<0.05). Meanwhile, the Sul1 content decreased significantly(P<0.05) with the increase in the concentration of salinity or humic acid. For total ammonia nitrogen or phosphate, the inhibition of the Sul1 content was achieved at a high concentration, while promoting effects were observed at a low concentration. When the concentration of total ammonia nitrogen or phosphate was lower than 0.05 mg·L-1, the Sul1 content increased significantly(P<0.05), while it decreased significantly(P<0.05) when the concentration of total ammonia nitrogen or phosphate increased to 1 mg·L-1. Therefore, water quality might play an important role in the occurrence and distribution of sulfonamide resistance gene Sul1. |
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