Evaluating the effect of dissolved oxygen on ammonia-oxidizing bacterial communities in activated sludge

Park, Hee Deung; Noguera, Daniel R.

doi:10.1016/j.watres.2004.04.047

Cited by 292 publications

(189 citation statements)

References 30 publications

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“…A previous study suggested that N. nitrosa has an advantage in environments with fluctuating oxygen levels or during the absence of oxygen (44). This may be a reason why N. nitrosa has been retrieved not only from various wastewater treatment plants (21,27,55) but also from two soils located in warm regions and supplied with a relatively high input of nitrogen (51,54). Strains of N. nitrosa that were commonly isolated from eutrophic freshwater exhibited relatively high ammonia K s values (14 to 43 M NH 3 ) and, thus, seem to be better adapted to high ammonia concentrations than, for example, N. oligotropha (K s ϭ 1.9 to 4.2 M NH 3 ) (35).…”

Section: Discussionmentioning

confidence: 99%

Active Autotrophic Ammonia-Oxidizing Bacteria in Biofilm Enrichments from Simulated Creek Ecosystems at Two Ammonium Concentrations Respond to Temperature Manipulation

Avrahami

Jia

Neufeld

et al. 2011

Appl Environ Microbiol

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The first step of nitrification, the oxidation of ammonia to nitrite, is important for reducing eutrophication in freshwater environments when coupled with anammox (anaerobic ammonium oxidation) or denitrification. We analyzed active formerly biofilm-associated aerobic ammonia-oxidizing communities originating from Ammerbach (AS) and Leutra South (LS) stream water (683 ؎ 550 [mean ؎ standard deviation] and 16 ؎ 7 M NH 4 ؉ , respectively) that were developed in a flow-channel experiment and incubated under three temperature regimens. By stable-isotope probing using 13 CO 2 , we found that members of the Bacteria and not Archaea were the functionally dominant autotrophic ammonia oxidizers at all temperatures under relatively high ammonium loads. The copy numbers of bacterial amoA genes in 13 C-labeled DNA were lower at 30°C than at 13°C in both stream enrichment cultures. However, the community composition of the ammonia-oxidizing bacteria (AOB) in the 13 C-labeled DNA responded differently to temperature manipulation at two ammonium concentrations. In LS enrichments incubated at the in situ temperature (13°C), Nitrosomonas oligotropha-like sequences were retrieved with sequences from Nitrosospira AmoA cluster 4, while the proportion of Nitrosospira sequences increased at higher temperatures. In AS enrichments incubated at 13°C and 20°C, AmoA cluster 4 sequences were dominant; Nitrosomonas nitrosa-like sequences dominated at 30°C. Biofilm-associated AOB communities were affected differentially by temperature at two relatively high ammonium concentrations, implicating them in a potential role in governing contaminated freshwater AOB distributions.

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Section: Discussionmentioning

confidence: 99%

Active Autotrophic Ammonia-Oxidizing Bacteria in Biofilm Enrichments from Simulated Creek Ecosystems at Two Ammonium Concentrations Respond to Temperature Manipulation

Avrahami

Jia

Neufeld

et al. 2011

Appl Environ Microbiol

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“…The results of this study showed that DO had a significant effect in shaping the bacterial community structure in wastewater treatment systems. Park et al [26] have also demonstrated, in two lab-scale bioreactors with different DO concentrations, that DO concentration was an important influential factor based on the T-RFLP analysis of bacterial community structures. In addition to temperature and influent OD, bacterial community variance was also significantly linked to the COD concentrations in the WWTPs in CCA analysis.…”

Section: Relationship Of Environmental Factors To the Bacterial Commumentioning

confidence: 95%

MiSeq Sequencing Analysis of Bacterial Community Structures in Wastewater Treatment Plants

Wen

Jin

Wang

et al. 2015

Pol. J. Environ. Stud.

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The bacterial communities of activated sludge from nine wastewater treatment plants (WWTPs) located in three cities in China were examined using high-throughput MiSeq sequencing. The results showed that there were 57 genera of bacterial populations commonly shared by all nine systems, including Ferruginibacter, Dechloromonas, Zoogloea, Gp4, Gp6, etc., indicating that there was a core microbial community in the microbial populations of WWTPs at different geographic locations. Canonical correspondence analysis (CCA) results indicated that the bacterial community variance correlated most strongly with water temperature, dissolved oxygen (DO), concentrations of chemical oxygen demand (COD), and solids retention time (SRT). Variance partitioning analyses suggested that wastewater characteristics had the greatest contribution to the bacterial community variance, explaining 21% of the variance of bacterial communities independently, followed by operational parameters (17%), and geographic location (11%). This study provided insights into the diversity and bacterial community structures in geographically distributed WWTPs.

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“…Using the statistical T-Align tool (http://inismor.ucd.ie/ talign / Smith et al, 2005), the relative areas of the same fragments found in both replicates were averaged. The AOB identity of each TRF was compared with the published data (Horz et al, 2000;Park and Noguera, 2004;Siripong and Rittmann, 2007).…”

Section: T-rflp Analysis For Dna Extraction From Rhizosphere Soilmentioning

confidence: 99%

Effects of intercropping and Rhizobial inoculation on the ammonia-oxidizing microorganisms in rhizospheres of maize and faba bean plants

Zhang

Sun

Wang

et al. 2015

Applied Soil Ecology

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Evaluating the effect of dissolved oxygen on ammonia-oxidizing bacterial communities in activated sludge

Cited by 292 publications

References 30 publications

Active Autotrophic Ammonia-Oxidizing Bacteria in Biofilm Enrichments from Simulated Creek Ecosystems at Two Ammonium Concentrations Respond to Temperature Manipulation

Active Autotrophic Ammonia-Oxidizing Bacteria in Biofilm Enrichments from Simulated Creek Ecosystems at Two Ammonium Concentrations Respond to Temperature Manipulation

MiSeq Sequencing Analysis of Bacterial Community Structures in Wastewater Treatment Plants

Effects of intercropping and Rhizobial inoculation on the ammonia-oxidizing microorganisms in rhizospheres of maize and faba bean plants

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