Results 41 to 50 of about 9,245 (215)

Nitrification and Anammox with Urea as the Energy Source [PDF]

Systematic and Applied Microbiology, 2004
Urea is present in many ecosystems and can be used as an energy source by chemolithotrophic aerobic ammonia oxidizing bacteria (AOB). Thus the utilization of urea in comparison to ammonia, by AOB as well as anaerobic ammonia oxidizing (Anammox) bacteria was investigated, using enrichments cultures, inoculated with activated sludge, and molecular ...
Sliekers, A.O., Haaijer, S.C.M., Schmid, M.C., Harhangi, R.H., Verwegen, K., Kuenen, J.G., Jetten, M.S.M.   +6 more
openaire   +2 more sources

Migrant solution to the anammox mystery [PDF]

Proceedings of the National Academy of Sciences, 2014
Every night a massive migration takes place in ocean waters. Zooplankton and micronekton, a diverse group of organisms
openaire   +2 more sources

Small‐ and large‐scale patches shape benthic microbial community structure and functional gene composition in streams at the subcontinental scale

Limnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract Streams process organic matter as water moves along the land‐to‐ocean continuum, making important contributions to global biogeochemical cycles. Yet, predicting stream microbial metabolism associated with biogeochemical transformations at broad spatial scales remains challenging.
Richard LaBrie, Rebecca L. Maher, Kelly S. Aho, Brittni L. Bertolet, Nicholas E. Ray, Paula C.J. Reis, Andrew L. Robison, Shannon L. Speir   +7 more
wiley   +1 more source

Microbial communities in anammox and nitrifying biofilms [PDF]

, 2017
Excess of nitrogen in water bodies causes eutrophication. One important source of nitrogen is the effluent from wastewater treatment plants (WWTPs). Nitrogen in wastewater is most commonly removed by nitrification-denitrification.
Suarez, Carolina
core   +1 more source

Mechanisms of operating parameters and inhibitory factor affecting Anammox bacteria

Gongye shui chuli
Anaerobic ammonia oxidation(Anammox) process has demonstrated exceptional advantages and promising application prospects in the field of high ammonia nitrogen wastewater treatment.
ZHANG Kaoming, DENG Yuepeng, ZOU Jie, LIU Zhiquan, HU Chun, WANG Zhu   +5 more
doaj   +1 more source

Increased replication of dissimilatory nitrate-reducing bacteria leads to decreased anammox bioreactor performance

Microbiome, 2020
Background Anaerobic ammonium oxidation (anammox) is a biological process employed to remove reactive nitrogen from wastewater. While a substantial body of literature describes the performance of anammox bioreactors under various operational conditions ...
Ray Keren, Jennifer E. Lawrence, Weiqin Zhuang, David Jenkins, Jillian F. Banfield, Lisa Alvarez-Cohen, Lijie Zhou, Ke Yu   +7 more
doaj   +1 more source

Sedimentary lycopane/n‐C31 ratio as a proxy for bottom water hypoxia in coastal ocean

Limnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract Bottom‐water hypoxia on continental shelves is intensifying under climate change and eutrophication, yet long‐term records remain scarce. Here we show that the sedimentary lycopane/n‐C31 ratio reliably records bottom‐water oxygenation in the seasonally hypoxic Yangtze River Estuary.
Qingnan Song, Huamao Yuan, Jinming Song, Guiling Zhang, Fengmin Pan, Xuegang Li, Liqin Duan   +6 more
wiley   +1 more source

Low Denitrification, Anammox, and Dissimilatory Nitrate Reduction to Ammonium Rates in a Low Disturbance Mangrove‐Saltmarsh System Using an in Situ Intact Chamber Method

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 9, September 2026.
Abstract Mangroves and saltmarshes can remove anthropogenic nitrogen (N) moving from the land to the ocean, but many previous N cycling measurements used destructive sampling procedures that excluded important habitats such as crab burrows, pneumatophores, and saltmarsh vegetation.
Britte C. van Haastregt, Dirk V. Erler, Jacob Z.‐Q. Yeo, Bradley D. Eyre   +3 more
wiley   +1 more source

Serpentine Biocrust Microbes Maintain Nitrogen Cycling Under Drought and Heavy Metal Stress

Ecological Research, Volume 41, Issue 5, September 2026.
This study highlights the complex interplay between soil geochemistry and moisture availability in shaping microbial communities within wetter and drier serpentine and non‐serpentine biological soil crusts. It demonstrates that both factors influence the structure of nitrogen‐cycling microbial communities and the processes they mediate.
Sandra Barnard, Oluwatobi Barachiah, Stefan J. Siebert, Danielle Botha, Sarina Claassens   +4 more
wiley   +1 more source

Metagenome of the Microbial Community of Anammox Granules in a Nitritation/Anammox Wastewater Treatment System

Genome Announcements, 2017
ABSTRACT We sequenced the metagenome of a granular sludge in a nitritation/anammox bioreactor used for the treatment of ammonium-rich wastewater. Proteobacteria , Planctomycetes , Bacteroidetes , Chloroflexi ...
Andrey V. Mardanov, Alexey V. Beletsky, Yury Nikolaev, Roman Y. Kotlyarov, Anna Kallistova, Nikolai V. Pimenov, Nikolai V. Ravin   +6 more
openaire   +2 more sources