Operation of a Methanol Denitrification Reactor Fed with NO3- and NO2- as Electron Acceptors and Analysis of Denitrifying Bacterial Genes

Analyses of the nitrite reductase gene diversities (nirK and nirS) in an activated sludge community fed with both nitrite and glucose were conducted. Results suggest that the topology of nirK and nirS gene fragment-based phylogenetic trees is influenced more by the available electron acceptor than by the carbon source. A denitrification reactor was operated for 53 days and a clone library constructed when the denitrifying communities in the SBR were supplied with both nitrite and glucose. Half of the nirK and nearly all the nirS gene fragments formed a cluster that was separate from a cluster containing nirK and nirS sequences derived from other communities in nitrate-fed reactors. On the other hand, nirK and nirS fragments obtained with glucose as the carbon source were similar to those detected in communities fed with other carbon sources.

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Influence of the electron acceptor on nitrite reductase gene (nir) diversity in an activated sludge community

Nittami

Magura

Imai

et al. 2009

Journal of Bioscience and Bioengineering

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Operation of a Methanol Denitrification Reactor Fed with NO3- and NO2- as Electron Acceptors and Analysis of Denitrifying Bacterial Genes

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References 25 publications

Influence of the electron acceptor on nitrite reductase gene (nir) diversity in an activated sludge community

Influence of the electron acceptor on nitrite reductase gene (nir) diversity in an activated sludge community

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