Abundance of Candidatus 'Accumulibacter phosphatis' in Enhanced Biological Phosphorus Removal Activated Sludge Acclimatized with Different Carbon Sources
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概要
- 論文の詳細を見る
In the present study, the abundance of Candidatus 'Accumulibacter phosphatis' and the accumulation of polyphosphate were investigated in five enhanced biological phosphorus removal (EBPR) activated sludge reactors operated with different carbon sources. Fluorescence in situ hybridization (FISH) in combination with 4', 6-diamidino-2-phenylindole (DAPI) staining for polyphosphate granules confirmed the accumulation of polyphosphate by Candidatus 'Accumulibacter phosphatis' in all the reactors. The abundance of Candidatus 'Accumulibacter phosphatis' was determined from the FISH images. When EBPR activity was high and phosphorus content made up around 9% or more of mixed liquor volatile suspended solids (MLVSS), Candidatus 'Accumulibacter phosphatis' accounted for over 20% of the eubacteria in the reactors acclimatized with acetate, aspartate, or glucose. Whereas this value was as low as around 10% in the reactors acclimatized mainly with yeast extract, peptone, or glutamate. In these reactors, bacteria affiliated with Actinobacteria were found to accumulate polyphosphate and to contribute to phosphorus removal. Candidatus 'Accumulibacter phosphatis' takes part in the removal of phosphorus by using various carbon sources, but its abundance varies according to the type of carbon source.
- 日本微生物生態学会の論文
著者
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Mino Takashi
Graduate School Of Frontier Sciences The University Of Tokyo
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Satoh Hiroyasu
Institute Of Environmental Studies Graduate School Of Frontier Sciences The University Of Tokyo
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Satoh Hiroyasu
Graduate School Of Frontier Sciences The University Of Tokyo
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Okamoto Mayuko
Nishihara Environment Technology Inc.
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Onuki Motoharu
Transdisciplinary Initiative For Global Sustainability (tigs) Integrated Research System For Sustain
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Uda Naoki
Institute Of Environmental Studies Graduate School Of Frontier Sciences The University Of Tokyo
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Oshiki Mamoru
Grad. Sch. Of Frontier Sci. The Univ. Of Tokyo
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Onuki Motoharu
Integrated Research System for Sustainability Science (IR3S)
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FUKUSHIMA TOSHIKAZU
Institute of Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
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MINO TAKASHI
Institute of Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
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Fukushima Toshikazu
Institute Of Environmental Studies Graduate School Of Frontier Sciences The University Of Tokyo
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Mino Takashi
Institute Of Environmental Studies Graduate School Of Frontier Sciences The University Of Tokyo
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Okamoto Mayuko
Nishihara Environment Technol. Inc.
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