Effects of Oxytetracycline on Methane Production and the Microbial Communities During Anaerobic Digestion of Cow Manure
查看参考文献37篇
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文摘
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The effects of different concentrations of oxytetracycline (OTC) on the dynamics of bacterial and archaeal communities during the mesophilic anaerobic digestion (37°C) of cow manure were investigated. Before anaerobic digestion, OTC was added to digesters at concentrations of 20, 50, and 80 mg L~(-1), respectively. Compared with no-antibiotic control, all methane productions underwent different levels of inhibition at different concentrations of OTC. Changes in the bacterial and archaeal communities were discussed by using PCR-denaturing gradient gel electrophoresis (DGGE). Results showed that OTC affected the richness and diversity of bacterial and archaeal communities. The bacterial genus Flavobacterium and an uncultured bacterium (JN256083.1) were detected throughout the entire process of anaerobic digestion and seemed to be the functional bacteria. Methanobrevibacter boviskoreani and an uncultured archaeon (FJ230982.1) dominated the archaeal communities during anaerobic digestion. These microorganisms may have high resistance to OTC and may play vital roles in methane production. |
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来源
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Journal of Integrative Agriculture
,2014,13(6):1373-1381 【核心库】
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DOI
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10.1016/s2095-3119(13)60683-8
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关键词
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oxytetracycline
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anaerobic digestion stages (BDS
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DMS and FDS)
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PCR-DGGE
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bacterial community
;
archaeal community
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地址
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1.
College of Energy and Environment, Shenyang Aerospace University, Shenyang, 110136
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College of Land and Environment, Shenyang Agriculture University, Shenyang, 110161
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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2095-3119 |
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学科
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微生物学;环境科学基础理论 |
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基金
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supported by the Major Science and Technology Program for Water Pollution Control and Treatment, China
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文献收藏号
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CSCD:5169168
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