Results 71 to 80 of about 10,156 (209)

Environmental Risk Assessment and Anti‐Corrosion Efficacy of Safe‐by‐Design Nitrite‐Based Nanomaterials for Maritime Applications

Nano Select, Volume 7, Issue 2, February 2026.
The environmental behavior and impact of anti‐corrosion nanoadditives, ZnAl‐NO2 and MgAl‐NO2 layered double hydroxides (LDH), are assessed under marine conditions. These nanomaterials show instability in water but exhibit no or low toxicity to most tested marine species.
Joana Figueiredo, Fernando C. Perina, Diana Carneiro, Muhammad Ahsan Iqbal, Patrícia V. Silva, Olga Kaczerewska, Cristina Neves, Cláudia Rocha, Tânia Oliveira, Frederico Maia, João Tedim, Susana Loureiro, Roberto Martins   +12 more
wiley   +1 more source

AmoA-Targeted Polymerase Chain Reaction Primers for the Specific Detection and Quantification of Comammox Nitrospira in the Environment

Frontiers in Microbiology, 2017
Nitrification, the oxidation of ammonia via nitrite to nitrate, has always been considered to be catalyzed by the concerted activity of ammonia- and nitrite-oxidizing microorganisms.
Petra Pjevac, Clemens Schauberger, Lianna Poghosyan, Craig W. Herbold, Maartje A. H. J. van Kessel, Anne Daebeler, Michaela Steinberger, Mike S. M. Jetten, Sebastian Lücker, Michael Wagner, Holger Daims   +10 more
doaj   +1 more source

Nitrification-denitrification in WSP: a mechanism for permanent nitrogen removal in maturation ponds [PDF]

, 2009
A pilot-scale primary maturation pond was spiked with 15N-labelled ammonia (15NH4Cl) and 15N labelled nitrite (Na15NO2), in order to improve current understanding of the dynamics of inorganic nitrogen transformations and removal in WSP systems.
Camargo Valero, M, Curtis, T, Davenport, R, Mara, D, Newton, R, Read L F   +5 more
core  

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

The draft genome sequence of “Nitrospira lenta” strain BS10, a nitrite oxidizing bacterium isolated from activated sludge

Standards in Genomic Sciences, 2018
The genus Nitrospira is considered to be the most widespread and abundant group of nitrite-oxidizing bacteria in many natural and man-made ecosystems. However, the ecophysiological versatility within this phylogenetic group remains highly understudied ...
Dimitra Sakoula, Boris Nowka, Eva Spieck, Holger Daims, Sebastian Lücker   +4 more
doaj   +1 more source

Nitrite Oxidizer Activity and Community Are More Responsive Than Their Abundance to Ammonium-Based Fertilizer in an Agricultural Soil

Frontiers in Microbiology, 2020
Autotrophic nitrification is mediated by ammonia oxidizing bacteria (AOB) or ammonia oxidizing archaea (AOA) and nitrite oxidizing bacteria (NOB). Mounting studies have examined the impact of nitrogen (N) fertilization on the dynamic and diversity of AOA
Yang Ouyang, Yang Ouyang, Jeanette M. Norton   +2 more
doaj   +1 more source

Activity-Based Cell Sorting Reveals Resistance of Functionally Degenerate Nitrospira during a Press Disturbance in Nitrifying Activated Sludge

mSystems, 2021
Managing and engineering activated sludge wastewater treatment microbiomes for low-energy nitrogen removal requires process control strategies to stop the oxidation of ammonium at nitrite.
Maxwell B. W. Madill, Yaqian Luo, Pranav Sampara, Ryan M. Ziels   +3 more
doaj   +1 more source

Assessing Prokaryotic Benthic Communities in the Red Sea

Environmental Microbiology, Volume 28, Issue 2, February 2026.
Prokaryotic benthic communities in the Red Sea are shaped by depth, latitude, and oxygen availability. Deep‐sea communities exhibited low variance in OTU richness, while shallower communities showed higher OTU richness towards the Southern Red Sea. Extreme environments supported specialised microbial communities likely adapted to extreme conditions ...
Christopher A. Hempel, Larissa Frühe, Sofia Frappi, Elisa Laiolo, Kah Kheng Lim, Diego E. Rivera Rosas, Amal A. Bajaffer, Wajitha J. R. M. Sait, Alexandra Steckbauer, Taiba Alamoudi, Jacqueline V. Alva García, Shannon G. Klein, Anieka J. Parry, Mohammad A. Qurban, Vincent A. Pieribone, Carlos Angulo‐Preckler, Carlos M. Duarte   +16 more
wiley   +1 more source

A mathematical model of bacteria capable of complete oxidation of ammonium predicts improved nitrogen removal and reduced production of nitrous oxide [PDF]

, 2017
The removal of excess nutrients from water ecosystems requires oxidation of toxic ammonium by two types of bacteria; one oxidizes ammonium to nitrite and the other oxidizes nitrite to nitrate.
Ebenhöh, Oliver, Pokhilko, Alexandra
core  

Microbial Distributions Across Wide‐Ranging Temperature Gradients of Hot Springs in Thailand: A Review of 35 Years of Research on Hot Spring‐Associated Microorganisms

Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.
This review article summarised 35 years of research on microbial distributions (bacteria, archaea and microbial eukaryotes) across wide‐ranging hot spring temperatures in Thailand, including the overall research progression, scopes and methodologies of previous studies.
C. Sriaporn, K. Phinyo, U. Sompong, J. Pekkoh, J. Homnan, S. Komonjinda   +5 more
wiley   +1 more source