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Microbial phylogenetic and functional responses within acidified wastewater communities exhibiting enhanced phosphate uptake.
- Source :
-
Bioresource technology [Bioresour Technol] 2016 Nov; Vol. 220, pp. 55-61. Date of Electronic Publication: 2016 Aug 12. - Publication Year :
- 2016
-
Abstract
- Acid stimulated accumulation of insoluble phosphorus within microbial cells is highly beneficial to wastewater treatment but remains largely unexplored. Using single cell analyses and next generation sequencing, the response of active polyphosphate accumulating microbial communities under conditions of enhanced phosphorus uptake under both acidic and aerobic conditions was characterised. Phosphorus accumulation activities were highest under acidic conditions (pH 5.5>8.5), where a significant positive effect on bioaccumulation was observed at pH 5.5 when compared to pH 8.5. In contrast to the Betaproteobacteria and Actinobacteria dominated enhanced biological phosphorus removal process, the functionally active polyP accumulators at pH 5.5 belonged to the Gammaproteobacteria, with key accumulators identified as members of the families Aeromonadaceae and Enterobacteriaceae. This study demonstrated a significant enrichment of key polyphosphate kinase and exopolyphosphatase genes within the community metagenome after acidification, concomitant with an increase in P accumulation kinetics.<br /> (Copyright © 2016 Elsevier Ltd. All rights reserved.)
- Subjects :
- Betaproteobacteria genetics
Gammaproteobacteria genetics
Gammaproteobacteria metabolism
High-Throughput Nucleotide Sequencing
Hydrogen-Ion Concentration
Kinetics
Microbial Consortia genetics
Phosphorus metabolism
Ponds
Western Australia
Microbial Consortia physiology
Phylogeny
Polyphosphates metabolism
Wastewater chemistry
Wastewater microbiology
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2976
- Volume :
- 220
- Database :
- MEDLINE
- Journal :
- Bioresource technology
- Publication Type :
- Academic Journal
- Accession number :
- 27566512
- Full Text :
- https://doi.org/10.1016/j.biortech.2016.08.037