Environmental distribution and population biology of Candidatus Accumulibacter, a primary agent of biological phosphorus removal

Peterson, S. Brook, Warnecke, Falk, Madejska, Julita, McMahon, Katherine D. and Hugenholtz, Philip (2008) Environmental distribution and population biology of Candidatus Accumulibacter, a primary agent of biological phosphorus removal. Environmental Microbiology, 10 10: 2692-2703. doi:10.1111/j.1462-2920.2008.01690.x


Author Peterson, S. Brook
Warnecke, Falk
Madejska, Julita
McMahon, Katherine D.
Hugenholtz, Philip
Title Environmental distribution and population biology of Candidatus Accumulibacter, a primary agent of biological phosphorus removal
Formatted title
Environmental distribution and population biology of Candidatus Accumulibacter, a primary agent of biological phosphorus removal
Journal name Environmental Microbiology   Check publisher's open access policy
ISSN 1462-2912
1462-2920
Publication date 2008-10
Sub-type Article (original research)
DOI 10.1111/j.1462-2920.2008.01690.x
Volume 10
Issue 10
Start page 2692
End page 2703
Total pages 12
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing
Language eng
Formatted abstract
Members of the uncultured bacterial genus Candidatus Accumulibacter are capable of intracellular accumulation of inorganic phosphate in activated sludge wastewater treatment plants (WWTPs) performing enhanced biological phosphorus removal, but were also recently shown to inhabit freshwater and estuarine sediments. Additionally, metagenomic sequencing of two bioreactor cultures enriched in Candidatus Accumulibacter, but housed on separate continents, revealed the potential for global dispersal of particular Candidatus Accumulibacter strains, which we hypothesize is facilitated by the ability of Candidatus Accumulibacter to persist in environmental habitats. In the current study, we used sequencing of a phylogenetic marker, the ppk1 gene, to characterize Candidatus Accumulibacter populations in diverse environments, at varying distances from WWTPs. We discovered several new lineages of Candidatus Accumulibacter which had not previously been detected in WWTPs, and also uncovered new diversity and structure within previously detected lineages. Habitat characteristics were found to be a key determinant of Candidatus Accumulibacter lineage distribution while, as predicted, geographic distance played little role in limiting dispersal on a regional scale. However, on a local scale, enrichment of particular Candidatus Accumulibacter lineages in WWTP appeared to impact local environmental populations. These results provide evidence of ecological differences among Candidatus Accumulibacter lineages.
Keyword Polyphosphate-accumulating organisms
Microbial communities
Activated sludge
Kinase genes
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
School of Chemistry and Molecular Biosciences
 
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