Results 71 to 80 of about 29,275 (154)

Phage encoded H-NS: a potential achilles heel in the bacterial defence system. [PDF]

PLoS ONE, 2011
The relationship between phage and their microbial hosts is difficult to elucidate in complex natural ecosystems. Engineered systems performing enhanced biological phosphorus removal (EBPR), offer stable, lower complexity communities for studying phage ...
Connor T Skennerton, Florent E Angly, Mya Breitbart, Lauren Bragg, Shaomei He, Katherine D McMahon, Philip Hugenholtz, Gene W Tyson   +7 more
doaj   +1 more source

Dominant and novel clades of Candidatus Accumulibacter phosphatis in 18 globally distributed full-scale wastewater treatment plants [PDF]

Here we employed quantitative real-time PCR (qPCR) assays for polyphosphate kinase 1 (ppk1) and 16S rRNA genes to assess relative abundances of dominant clades of Candidatus Accumulibacter phosphatis (referred to Accumulibacter) in 18 globally ...
Zhang T, Graham DW, Mao Y, Tamaki H
core   +3 more sources

The structure of microbial communities of activated sludge of large-scale wastewater treatment plants in the city of Moscow

Scientific Reports, 2022
Microbial communities in wastewater treatment plants (WWTPs) play a key role in water purification. Microbial communities of activated sludge (AS) vary extensively based on plant operating technology, influent characteristics and WWTP capacity.
Shahjahon Begmatov, Alexander G. Dorofeev, Vitaly V. Kadnikov, Alexey V. Beletsky, Nikolai V. Pimenov, Nikolai V. Ravin, Andrey V. Mardanov   +6 more
doaj   +1 more source

Denitrification capabilities of two biological phosphorus removal sludges dominated by different "Candidatus Accumulibacter" clades. [PDF]

Environ Microbiol Rep, 2009
Summary The capability of ‘ Candidatus Accumulibacter’ to use nitrate as an electron acceptor for phosphorus uptake was investigated using two activated sludge communities. The two communities were enriched in Accumulibacter clade IA and clade IIA, respectively.
Flowers JJ, He S, Yilmaz S, Noguera DR, McMahon KD.   +4 more
europepmc   +4 more sources

Bacteriophages in the Rhizosphere: Roles in Nutrient Cycling, Bacterial Community Structure, and Animal‐Mediated Dispersal

MicrobiologyOpen, Volume 15, Issue 3, June 2026.
This review discusses bacteriophages' roles in soil ecosystems, highlighting their impact on nutrient cycling, plant health, and soil remediation, as well as animal‐mediated phage dispersal mechanisms. Overall, while bacteriophages have potential biotechnological applications, their negative effects on microbial functions and nutrient cycling highlight
Majid Komijani, Hassan Maddahi, Marzieh Rezaei, Mohammad Hussein Abnosi, Abdullah Khalaf Ahmed   +4 more
wiley   +1 more source

Spatial and Temporal Variability of Microbial Nitrogen Cycling Genes in Arctic Streams

Global Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract The Arctic is undergoing rapid climate change, with thawing permafrost and shifts in vegetation altering nitrogen (N) delivery into streams. These changes can significantly affect microbial biofilm diversity and functional roles, yet knowledge of streambed microbial biofilms remains scarce across the Arctic.
C. M. H. Holmboe, T. Riis, X. Han, A. Frossard, A. M. Romaní, J. B. Kjær, J. L. Tank, P. Giménez‐Grau, E. Hille, L. P. D'Acqui, N. Catalán, A. Pastor   +11 more
wiley   +1 more source

Effect of Free Nitrous Acid on Nitrous Oxide Production and Denitrifying Phosphorus Removal by Polyphosphorus‐Accumulating Organisms in Wastewater Treatment

BioMed Research International, Volume 2018, Issue 1, 2018., 2018
The inhibition of free nitrous acid (FNA) on denitrifying phosphorus removal has been widely reported for enhanced biological phosphorus removal; however, few studies focus on the nitrous oxide (N2O) production involved in this process. In this study, the effects of FNA on N2O production and anoxic phosphorus metabolism were investigated using ...
Zhijia Miao, Duo Li, Shan Guo, Zhirui Zhao, Xiaofeng Fang, Xueyou Wen, Jingmin Wan, Aiguo Li, Joseph Usack   +8 more
wiley   +1 more source

Exploring the Impacts of Full-Scale Distribution System Orthophosphate Corrosion Control Implementation on the Microbial Ecology of Hydrologically Connected Urban Streams

Microbiology Spectrum, 2022
Many cities across the nation are plagued by lead contamination in drinking water. As such, many drinking water utilities have undertaken lead service line (LSL) replacement to prevent further lead contamination.
Isaiah Spencer-Williams, Anusha Balangoda, Richard Dabundo, Emily Elliott, Sarah-Jane Haig   +4 more
doaj   +1 more source

Combined DNA/RNA Amplicon Sequencing and Metatranscriptomics Reveals Microbial‐Driven Nutrient Transformations and Core Taxa in Agriculturally Impacted Sediments

Environmental Microbiology Reports, Volume 17, Issue 5, October 2025.
Excess loads of nitrogen and phosphorus in agriculturally impacted watersheds alter microbial metabolism in sediments. A multi‐omic investigation found nitrate reduction coupled to sulphur oxidation was prominent where inorganic fertilisers were dominant, whilst a manure‐impacted site revealed biomarkers of nitrosative stress due to incomplete ...
Nicholas W. Falk, Ian G. Droppo, Ken G. Drouillard, Christopher G. Weisener   +3 more
wiley   +1 more source

Rheology and Microbiology of Sludge from a Thermophilic Aerobic Membrane Reactor

Journal of Chemistry, Volume 2017, Issue 1, 2017., 2017
A thermophilic aerobic membrane reactor (TAMR) treating high‐strength COD liquid wastes was submitted to an integrated investigation, with the aim of characterizing the biomass and its rheological behaviour. These processes are still scarcely adopted, also because the knowledge of their biology as well as of the physical‐chemical properties of the ...
Alessandro Abbà, Maria Cristina Collivignarelli, Sauro Manenti, Roberta Pedrazzani, Sara Todeschini, Giorgio Bertanza, Nicolas Roche   +6 more
wiley   +1 more source