Effects of transient temperature conditions on the divergence of activated sludge bacterial community structure and function.
Effects of transient temperature conditions on the divergence of activated sludge bacterial community structure and function.
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DOI：
10.1016/j.watres.2007.02.002
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发表时间：
2007-06
期刊：
影响因子：
12.8
通讯作者：
N. Nadarajah;D. G. Allen;R. Fulthorpe
中科院分区：
文献类型：
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作者：
N. Nadarajah;D. G. Allen;R. Fulthorpe
在实验室规模的序批式反应器中，研究了温度波动对处理漂白硫酸盐法制浆废水中细菌群落结构和功能的影响。温度从30°C升高到45°C会导致细菌群落结构和功能的变化。三重反应堆在启动后的40天内高度相似。温度变化后，它们的群落结构和功能开始彼此背离，也开始背离对照。多响应置换过程证实，暂态反应堆和对照反应堆之间的群落结构的变异性大于三重暂态反应堆之间的差异。这些扰动在明显相同的反应堆中以不同的方式表现出来，这一事实表明复制系统之间存在高度的可变性。
The effect of temperature fluctuations on bacterial community structure and function in lab-scale sequencing batch reactors treating bleached kraft mill effluent was investigated. An increase in temperature from 30 to 45°C caused shifts in both bacterial community structure and function. Triplicate reactors were highly similar for 40 days following startup. After the temperature shift, their community structure and function started to diverge from each other and from the control. A multi-response permutation procedure confirmed that the variability in community structure between transient and control reactors were greater than that among the triplicate transient reactors. The fact that these disturbances manifest themselves in different ways in apparently identical reactors suggests a high degree of variability between replicate systems.