Results 111 to 120 of about 15,618 (215)

Vertical segregation and phylogenetic characterization of ammonia-oxidizing bacteria and archaea in the sediment of a freshwater aquaculture pond

Frontiers in Microbiology, 2016
Pond aquaculture is the major freshwater aquaculture method in China. Ammonia-oxidizing communities inhabiting pond sediments play an important role in controlling culture water quality.
Shimin eLu, Shimin eLu, Xingguo eLiu, Qigen eLiu, Zhuojun eMa, Zongfan eWu, Zongfan eWu, Xianlei eZeng, Xianlei eZeng, Xu eShi, Zhaojun eGu   +10 more
doaj   +1 more source

Nitrogen removal in a two-chambered microbial fuel cell: Establishment of a nitrifying-denitrifying microbial community on an intermittent aerated cathode [PDF]

, 2016
A microbial fuel cell (MFC) was used to study nitrogen dynamics and its feasibility for high strength wastewater treatment. Intermittent aeration was applied on the cathode chamber accomplishing the establishment of a simultaneous nitrifying-denitrifying
Bonmatí Blasi, August, Cerrillo Moreno, Míriam, Sotres Fernandez, Ana, Viñas Canals, Marc   +3 more
core   +2 more sources

Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils

Scientific Reports, 2018
Nitrous acid (HONO) is an important precursor of the hydroxyl radical (OH), the atmosphere´s primary oxidant. An unknown strong daytime source of HONO is required to explain measurements in ambient air.
M. Ermel, T. Behrendt, R. Oswald, B. Derstroff, D. Wu, S. Hohlmann, C. Stönner, A. Pommerening-Röser, M. Könneke, J. Williams, F. X. Meixner, M. O. Andreae, I. Trebs, M. Sörgel   +13 more
doaj   +1 more source

Ammonia-oxidising archaea living at low pH: Insights from comparative genomics [PDF]

, 2017
Obligate acidophilic members of the thaumarchaeotal genus Candidatus Nitrosotalea play an important role in nitrification in acidic soils, but their evolutionary and physiological adaptations to acidic environments are still poorly understood, with only ...
Albertsen, Alkoby, Baker-Austin, Bankevich, Bayer, Beam, Berube, Booth, Bramwell, Contreras-Moreira, Călinescu, Darling, Edgar, Finn, Goris, Groeneveld, Grüber, Gubry-Rangin, Gubry-Rangin, Hausmann, Hayatsu, Herrmann, Hink, Hosie, Huber, Hunt, Hwang, Hyatt, Jung, Jung, Katoh, Kerou, Konstantinidis, Kurtz, Lartillot, Lehtovirta-Morley, Lehtovirta-Morley, Lehtovirta-Morley, Li, Lu, Luo, Luo, Macqueen, Nakanishi, Nawrat, Offre, Padan, Parks, Pester, Price, Richter, Rinke, Robertson, Ryan, Sato, Spang, Stamatakis, Tettelin, Trias, Vallenet, Varghese, Vico Oton, Violante, von Uexküll, Willenbrock, Yarza, Yeoh   +66 more
core   +3 more sources

Benthic Ammonia Oxidizers Differ in Community Structure and Biogeochemical Potential Across a Riverine Delta

Frontiers in Microbiology, 2015
Nitrogen pollution in coastal zones is a widespread issue, particularly in ecosystems with urban or agricultural watersheds. California’s Sacramento-San Joaquin Delta, at the landward reaches of San Francisco Bay, is highly impacted by both agricultural ...
Julian eDamashek, Jason Michel Smith, Jason Michel Smith, Annika eMosier, Annika eMosier, Christopher eFrancis   +5 more
doaj   +1 more source

Membraneless channels sieve cations in ammonia-oxidizing marine archaea

Nature
AbstractNitrosopumilus maritimus is an ammonia-oxidizing archaeon that is crucial to the global nitrogen cycle1,2. A critical step for nitrogen oxidation is the entrapment of ammonium ions from a dilute marine environment at the cell surface and their subsequent channelling to the cell membrane of N. maritimus.
von Kügelgen, A, Cassidy, CK, van Dorst, S, Pagani, LL, Batters, C, Ford, Z, Löwe, J, Alva, V, Stansfeld, PJ, Bharat, TAM   +9 more
openaire   +4 more sources

Nitrogen removal and ammonia-oxidising bacteria in a vertical flow constructed wetland treating inorganic wastewater [PDF]

, 2011
Nitrogen removal performance and the ammonia-oxidising bacterial (AOB) community were assessed in the batch loaded 1.3ha saturated surface vertical flow wetland at CSBP Ltd, a fertiliser and chemical manufacturer located in Kwinana, Western Australia ...
Dallas, S., Domingos, S.S., Felstead, S., Ho, G., Skillman, L.   +4 more
core   +2 more sources

Nitrification and growth of autotrophic nitrifying bacteria and Thaumarchaeota in the coastal North Sea [PDF]

, 2012
Nitrification and the associated growth of autotrophic nitrifiers, as well as the contributions of bacteria and Thaumarchaeota to total autotrophic C-fixation by nitrifiers were investigated in the Dutch coastal North Sea from October 2007 to March 2008.
Middelburg, J.J., Pitcher, A., Schouten, S., Sinninghe Damsté, J.S., Veuger, B.   +4 more
core   +2 more sources

Nitrifier Gene Abundance and Diversity in Sediments Impacted by Acid Mine Drainage

Frontiers in Microbiology, 2017
Extremely acidic and metal-rich acid mine drainage (AMD) waters can have severe toxicological effects on aquatic ecosystems. AMD has been shown to completely halt nitrification, which plays an important role in transferring nitrogen to higher organisms ...
Bhargavi Ramanathan, Andrew M. Boddicker, Timberley M. Roane, Annika C. Mosier   +3 more
doaj   +1 more source

Abundance and Community Composition of Ammonia-Oxidizers in Paddy Soil at Different Nitrogen Fertilizer Rates

Journal of Integrative Agriculture, 2014
Ammonia oxidation, the first and rate-limiting step of nitrification, is carried out by both ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA).
Ya-na SONG, Zhi-min LIN
doaj   +1 more source