Results 81 to 90 of about 254,729 (175)

Long‐Term Low‐DO Operation Changes the Ammonia Oxidizer Community and Oxygen Kinetics

Water Environment Research, Volume 98, Issue 10, October 2026.
Lower dissolved oxygen reduces energy demand for wastewater treatment but slows ammonia removal. This study investigates a pilot process maintaining complete nitrification, documenting ammonia oxidizer adaptation to low dissolved oxygen. ABSTRACT Low–dissolved oxygen (DO) biological nutrient removal is an attractive option for energy and cost reduction,
Kester McCullough, Lilian McIntosh, Alexandria Gagnon, William Dawson, Hailey Bradshaw, Stephanie Klaus, Dev Hiripitiyage, Belinda Sturm, Diego Rosso, Charles B. Bott, Peter A. Vanrolleghem   +10 more
wiley   +1 more source

LIPOTHERM: A Calibration Framework for GDGT Paleothermometry Based on Machine Learning

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract SST reconstruction from glycerol dialkyl glycerol tetraethers (GDGT) preserved in marine sediments is an important tool in quantitative paleoclimatology. These reconstructions require calibration frameworks that provide mapping between sediment GDGT data and temperature values.
Vikash Kumar, Manish Tiwari, Biswajit Roy   +2 more
wiley   +1 more source

Phosphate Enrichment From Wildlife Inputs Shapes the Distribution and Pigmentation of Green and Red Snow Algae Along the West Antarctic Peninsula

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 10, October 2026.
Abstract Snow algae darken snow through biomass accumulation and pigmentation, yet nutrient controls on algal abundance and pigment composition in Antarctic snowfields remain poorly constrained. Along the West Antarctic Peninsula (WAP), coastal snowfields receive nutrient inputs from marine and wildlife sources that may influence bloom development.
Elise L. Ryan, Alia L. Khan
wiley   +1 more source

Ammonia‐oxidizing archaea and nitrite‐oxidizing nitrospiras in the biofilter of a shrimp recirculating aquaculture system [PDF]

, 2013
This study analysed the nitrifier community in the biofilter of a zero discharge, recirculating aquaculture system ( RAS ) for the production of marine shrimp in a low density (low ammonium production) system.
Raskin, Lutgarde, Briones, Aurelio, Brown, Monisha N., Diana, James   +3 more
core   +1 more source

Soil Microbial Communities Changes Along Depth and Contrasting Facing Slopes at the Parque Nacional La Campana, Chile

Microorganisms
The Parque Nacional La Campana (PNLC) was recently recognized for its high soil surface microbial richness. Here, we explored the microbial community structure in soil profiles from contrasting facing slopes where sclerophyllous forest (SF) and ...
Carolina Quinteros-Urquieta, Jean Pierre Francois, Polette Aguilar-Muñoz, Verónica Molina   +3 more
doaj   +1 more source

Microbial Community Restructuring Under Zinc Oxide Nanoparticle Stress in Membrane Bioreactors

Environmental Microbiology Reports, Volume 18, Issue 5, October 2026.
Long‐term ZnO nanoparticle exposure induced extracellular stress responses and restructured microbial communities, with reduced taxonomic and phylogenetic richness and loss of key nitrogen‐transforming taxa. These ecological changes were accompanied by impaired nitrification, demonstrating that prolonged ZnO exposure can compromise the functional ...
Dongqing Zhang, Tao Yu, Antoine Prandota Trzcinski   +2 more
wiley   +1 more source

Ammonia-Oxidizing Archaea Dominate Ammonia-Oxidizing Communities within Alkaline Cave Sediments

, 2016
Nitrification represents one of the key steps in the global nitrogen cycle. While originally considered an exclusive metabolic capability of bacteria, the identification of the Thaumarchaeota revealed that ammonia-oxidizing archaea (AOA) are also ...
Hongmei Wang (190581), Huan Yang (36076), Hazel A. Barton (172215), Rui Zhao (43391), Yuan Yun (3104118)   +4 more
core   +1 more source

Diagnosing Anaerobic Digesters' Function and Performance: From Meta‐Omics to Integrated Meta‐Omics Analyses

Environmental Microbiology Reports, Volume 18, Issue 5, October 2026.
The integration of multiple meta‐omics can tremendously improve our understanding of the structure, function and dynamics of the complex biological system in anaerobic digesters. Created in BioRender. https://BioRender.com/u9rj8ko. ABSTRACT Anaerobic digestion (AD) of organic wastes by microorganisms into biomethane contributes significantly towards ...
Kevin Iyere Ehiosun, Olivier Chapleur, Laurent Mazéas   +2 more
wiley   +1 more source

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

Drivers of Soil Community Composition in Apple Orchards: Insights From Environmental Metabarcoding

Environmental Microbiology Reports, Volume 18, Issue 5, October 2026.
Despite uniform management practices, single orchards of the 26 studied had only a small part of total diversity of prokaryotes, protists and fungi. Community assembly was governed primarily by stochastic processes and turnover dominated community composition for all organismal groups. ABSTRACT Soil biodiversity in apple orchards plays a vital role for
Ulrike Obertegger, Emanuela Coller, Sara Zanoni, Roberto Zanzotti, Raffaella Morelli, Massimo Pindo, Loris Marchel, Daniele Prodorutti   +7 more
wiley   +1 more source