Please use this identifier to cite or link to this item: https://doi.org/10.1046/j.1462-2920.2002.00357.x
Title: Diversity and distribution of a deeply branched novel proteobacterial group found in anaerobic-aerobic activated sludge processes
Authors: Kong, Y. 
Ong, S.L. 
Ng, W.J. 
Liu, W.-T. 
Issue Date: 1-Nov-2002
Citation: Kong, Y., Ong, S.L., Ng, W.J., Liu, W.-T. (2002-11-01). Diversity and distribution of a deeply branched novel proteobacterial group found in anaerobic-aerobic activated sludge processes. Environmental Microbiology 4 (11) : 753-757. ScholarBank@NUS Repository. https://doi.org/10.1046/j.1462-2920.2002.00357.x
Abstract: A novel coccobacilli group found previously in enhanced biological phosphorus removal (EBPR) systems was further revealed to have a high degree of diversity and distribution in various activated sludge systems. Phylogenetic analysis based on 14 existing and 18 newly retrieved 16S rRNA sequences revealed that these sequences formed a novel cohesive cluster with seven subgroups in the γ-Proteobacteria. Fluorescence in situ hybridization with a set of probes designed specifically targeting the novel group at different hierarchical levels showed that the novel group with a coccoid (2-4 μm) to occasionally long-rod (up to 20 μm) shape widely distributed and in some cases predominated in sludge samples taken from nine lab- and full-scale EBPR systems (10-50% of total cells) and four conventional activated sludge systems (1-10%). Variation of predominance was also observed among those subgroups in systems showing deteriorated or effective EBPR activity.
Source Title: Environmental Microbiology
URI: http://scholarbank.nus.edu.sg/handle/10635/65443
ISSN: 14622912
DOI: 10.1046/j.1462-2920.2002.00357.x
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