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Feasibility of lettuce cultivation in sophoroliplid-enhanced washed soil originally polluted with Cd, antibiotics, and antibiotic-resistant genes

文献类型： 外文期刊

作者： Ye, Mao 1 ; Sun, Mingming 2 ; Wan, Jinzhong 4 ; Feng, Yanfang 5 ; Zhao, Yu 6 ; Tian, Da 2 ; Hu, Feng 2 ; Jiang, Xin 1 ;

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

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

3.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China

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

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

6.Nanjing Univ, Sch Elect Sci & Engn, Jiangsu Prov Key Lab Photon & Elect Mat, Nanjing 210093, Jiangsu, Peoples R China

关键词： Mixed contaminated site;Soil washing;Sophoroliplid;Antibiotic-resistant genes;Lettuce cultivation

期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.291； 五年影响因子：6.393 ）

ISSN： 0147-6513

年卷期： 2016 年 124 卷

页码：

收录情况： SCI

摘要： Vegetable cultivation in soils polluted with heavy metals, antibiotics and a high abundance of antibiotic resistance genes (ARGs) can seriously threaten human health through the food chain. Therefore, novel techniques that not only remediate soil, but also ensure food security are urgently required. In the present study, two successive washings with 20 g L-1 of sophoroliplid solution plus ultrasonication (35 kHz) were effective in extracting 71.2% Cd, 88.2% tetracycline, 96.6% sulfadiazine, and 100% roxithromycin. Simultaneously, relative abundance of ARGs (tetM, tetX, sull, and sulII!) was decreased to 10(-7)-10(-8) (ARG copies/16S copies). Further, lettuce cultivation in the 2nd washed soil showed significant improvement in vegetable growth indices (fresh/dry weight, root surface area, chlorophyll content and soluble protein content) and a decrease in isolate counts for antibiotic-resistant bacterial endophytes and ARG abundance in lettuce tissues. This combined cleanup strategy provides an environmentally friendly technology for ensuring vegetable security in washed soils. (C) 2015 Elsevier Inc. All rights reserved.

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[1]Feasibility of Tea Saponin-Enhanced Soil Washing in a Soybean Oil-Water Solvent System to Extract PAHs/Cd/Ni Efficiently from a Coking Plant Site. Ye Mao,Jiang Xin,Sun Mingming,Xie Shanni,Liu Kuan,Hu Feng,Li Huixin,Zong Lianggang,Feng Yanfang,Zhao Yu,Wan Jinzhong. 2017

[2]Effect of biochar amendment on the control of soil sulfonamides, antibiotic-resistant bacteria, and gene enrichment in lettuce tissues. Ye, Mao,Jiang, Xin,Sun, Mingming,Xie, Shanni,Tian, Da,Wu, Jun,Hu, Feng,Li, Huixin,Feng, Yanfang,Wan, Jinzhong,Zhao, Yu.

[3]Dynamic interplay between microbial denitrification and antibiotic resistance under enhanced anoxic denitrification condition in soil. Sun, Mingming,Liu, Kuan,Liu, Manqiang,Jiao, Jiaguo,Tian, Da,Wu, Jun,Li, Huixin,Hu, Feng,Sun, Mingming,Ye, Mao,Jiang, Xin,Schwab, Arthur P.,Feng, Yanfang,Wan, Jinzhong.

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