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污水处理厂中浮游生物群落DNA指纹及其与水质指标的关系
Authors
余育和
冯伟松
+3 more
周伟
张翔
颜庆云
Publication date
1 January 2008
Publisher
Abstract
以武汉龙王嘴污水处理系统为研究对象,揭示了污水处理各阶段中浮游生物群落的DNA指纹拓扑结构,进而探索了其与浮游生物群落结构和环境理化因子的关系.首先建立了污水处理系统中浮游生物群落总DNA提取方法,然后用原核与真核特异性引物对流程(A^2/O氧化沟工艺)中不同阶段的浮游生物群落总DNA进行PCR扩增,用变性梯度凝胶电泳(DGGE)检测,并对平行水样分别进行常规理化因子和浮游生物物种的检测与鉴定.结果显示,各采样点理化因子、物种组成与浮游生物DNA指纹的统计分析结果十分吻合,厌氧、缺氧和好氧阶段间差异较小,进水、出水分别与其它采样点间差异较大.研究结果表明,污水中浮游生物群落具有丰富的多样性,其DNA指纹在空间距离较短的污水处理过程中发生了改变,而且其改变的趋势与生物组成和理化指标的趋势相符,说明浮游生物群落DNA指纹与水质指标密切相关
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Institute of Hydrobiology, Chinese Academy Of Sciences
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oai:ir.ihb.ac.cn:342005/40148
Last time updated on 23/01/2021