Variations in the fate and biological effects of sulfamethoxazole, norfloxacin and doxycycline in different vegetable-soil systems following manure application
Variations in the fate and biological effects of sulfamethoxazole, norfloxacin and doxycycline in different vegetable-soil systems following manure application
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施肥后不同蔬菜-土壤系统中磺胺甲恶唑、诺氟沙星和多西环素的去向和生物效应的变化
DOI：
10.1016/j.jhazmat.2015.10.038
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发表时间：
2016
影响因子：
13.6
通讯作者：
Qian Mingrong
中科院分区：
文献类型：
--
作者：
Wang Jianmei;Lin Hui;Sun Wanchun;Xia Yun;Ma Junwei;Fu Jianrong;Zhang Zulin;Wu Huizhen;Qian Mingrong
研究了磺胺甲恶唑(SMZ)、诺氟沙星(NOR)和强力霉素(DOX)在萝卜和小白菜栽培体系中的去向及其生物学效应。DOX比SMZ和NOR消散更快，而萝卜和小白菜种植增加了土壤中残留DOX的去除。萝卜类土壤中NOR的消散速度较快，而小白菜土壤中NOR的消散略有减慢。蔬菜栽培对SMZ的去除影响不大。抗生素的生物积累研究表明，萝卜和小白菜对DOX的吸收未被检测到，但萝卜积累的SMZ和NOR比小白菜多。在三种抗生素中，只有SMZ的使用对植物种子萌发、地上植物生长和土壤微生物多样性有明显的抑制作用。小白菜对SMZ的反应比萝卜更敏感。基于MicroResp™的主成分分析表明，采样时间和抗生素处理对土壤微生物群落有一定的影响。只有在小白菜土壤中，抗生素的应用对微生物群落的影响比采样时间更大；SMZ处理和DOX处理可以明显地与对照处理区分开来。这些结果对于评估抗生素对养殖系统实践的潜在风险至关重要，并表明良好的农业实践有助于限制甚至减少抗生素污染。
The fate of sulfamethoxazole (SMZ), norfloxacin (NOR) and doxycycline (DOX) and their biological effects in radish and pakchoi culture systems were investigated. DOX dissipated more rapidly than SMZ and NOR, while radish and pakchoi cultivation increased the removal of residual DOX in soils. Dissipation of NOR was accelerated in radish soils but was slowed down slightly in pakchoi soils. Vegetable cultivation exerted an insignificant effect on SMZ removal. Investigation of antibiotic bioaccumulation showed that the uptake of DOX by radish and pakchoi was undetectable, but the radish accumulated more SMZ and NOR than pakchoi. Among the three antibiotics, only SMZ use exhibited an apparent suspension of plant seed germination, up-ground plant growth and soil microbial diversity. Pakchoi responded more sensitively to SMZ than did the radish. Principal component analysis (PCA) based on MicroRESP™ indicated that the sampling time and antibiotic treatments could influence the soil microbial community. Only in the pakchoi soils did antibiotic application exert a more robust effect on the microbial community than the sampling time; SMZ treatments and DOX treatments could be clearly discriminated from the control treatments. These results are crucial for an assessment of the potential risks of antibiotics to culture system practices and suggest that good agricultural practices help to limit or even reduce antibiotic pollution.