Physiological and transcriptional responses of nitrifying bacteria exposed to copper in activated sludge
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- 作者：Fan Ouyanga ; Hongyan Zhaia ; zhaihy@tju.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Min Jia ; Hongyang Zhanga ; b ; Zhao Dongc
- 关键词：Nitrification inhibition ; Activated sludge ; sOUR ; mRNA ; Copper distribution
- 刊名：Journal of Hazardous Materials
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：301
- 期：Complete
- 页码：172-178
- 全文大小：1017 K
文摘
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Physiological and gene transcriptional responses of AOB and NOB are first time simultaneously investigated in activated sludge systems.
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The transcription of amoA and nxrB genes shows that AOB is more susceptible to toxic Cu than NOB.
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The transcriptions of amoA and nxrB genes positively correlate with sOURNH4 and sOURNO2.
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The inhibition of Cu on nitrifying bacteria could be mainly attributed to intracellular Cu.