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Effect of biochar amendment on the control of soil sulfonamides, antibiotic-resistant bacteria, and gene enrichment in lettuce tissues

文献类型： 外文期刊

作者： Ye, Mao 1 ; Sun, Mingming 2 ; Feng, Yanfang 3 ; Wan, Jinzhong 4 ; Xie, Shanni 2 ; Tian, Da 2 ; Zhao, Yu 5 ; Wu, Jun 2 ; Hu, 1 ;

作者机构： 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China

2.Nanjing Agr Univ, Coll Resources & Environm Sci, Soil Ecol Lab, Nanjing 210095, Jiangsu, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China

4.Minist Environm Protect China, Nanjing Inst Environm Sci, Nanjing 210042, Peoples R China

5.Nan

关键词： Biochar addition;Impedance effect;Lettuce cultivation;ARB;ARGs

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：10.588； 五年影响因子：10.129 ）

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收录情况： SCI

摘要： Considering the potential threat of vegetables growing in antibiotic-polluted soil with high abundance of antibiotic-resistant genes (ARGs) against human health through the food chain, it is thus urgent to develop novel control technology to ensure vegetable safety. In the present work, pot experiments were conducted in lettuce cultivation to assess the impedance effect of biochar amendment on soil sulfonamides (SAs), antibiotic-resistant bacteria (ARB), and ARG enrichment in lettuce tissues. After 100 days of cultivation, lettuce cultivation with biochar amendment exhibited the greatest soil SA dissipation as well as the significant improvement of lettuce growth indices, with residual soil SAs mainly existing as the tightly bound fraction. Moreover, the SA contents in roots and new/old leaves were reduced by one to two orders of magnitude compared to those without biochar amendment. In addition, isolate counts for SA resistant bacterial endophytes in old leaves and sul gene abundances in roots and old leaves also decreased significantly after biochar application. However, neither SA resistant bacteria nor sul genes were detected in new leaves. It was the first study to demonstrate that biochar amendment can be a practical strategy to protect lettuce safety growing in SA-polluted soil with rich ARB and ARGs. (C) 2015 Elsevier B.V. All rights reserved.

  • 相关文献

[1]Calcined Eggshell Waste for Mitigating Soil Antibiotic-Resistant Bacteria/Antibiotic Resistance Gene Dissemination and Accumulation in Bell Pepper. Ye, Mao,Jiang, Xin,Sun, Mingming,Liu, Manqiang,Tian, Da,Liu, Kuan,Wu, Jun,Sun, Mingming,Schwab, Arthur P.,Feng, Yanfang,Li, Xu,Wan, Jinzhong.

[2]Feasibility of sulfate-calcined eggshells for removing pathogenic bacteria and antibiotic resistance genes from landfill leachates. Ye, Mao,Jiang, Xin,Ye, Mao,Sun, Mingming,Chen, Xu,Liu, Kuan,Tian, Da,Liu, Manqiang,Wu, Jun,Sun, Mingming,Schwab, Arthur P.,Feng, Yanfang,Wan, Jinzhong.

[3]Feasibility of lettuce cultivation in sophoroliplid-enhanced washed soil originally polluted with Cd, antibiotics, and antibiotic-resistant genes. Ye, Mao,Jiang, Xin,Sun, Mingming,Tian, Da,Hu, Feng,Sun, Mingming,Wan, Jinzhong,Feng, Yanfang,Zhao, Yu. 2016

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