Results 91 to 100 of about 31,651 (247)

Environmental factors shaping the ecological niches of ammonia-oxidizing archaea [PDF]

FEMS Microbiology Reviews, 2009
For more than 100 years it was believed that bacteria were the only group responsible for the oxidation of ammonia. However, recently, a new strain of archaea bearing a putative ammonia monooxygenase subunit A (amoA) gene and able to oxidize ammonia was isolated from a marine aquarium tank.
Tuba H, Erguder, Nico, Boon, Lieven, Wittebolle, Massimo, Marzorati, Willy, Verstraete   +4 more
openaire   +2 more sources

Protein Energy Malnutrition: Opportunities for Cold Plasma Technologies

Food Frontiers, Volume 7, Issue 2, March 2026.
Protein energy malnutrition (PEM) is a major global health concern driven by biological, environmental, and nutritional factors, including gut microbiota imbalance and low protein intake. Cold atmospheric plasma technologies offer promising, sustainable solutions by improving food security, enhancing protein quality and absorption, and modulating gut ...
Karthika Prasad, Syamlal Sasi, Nina Recek, Janith Weerasinghe, Elena P. Ivanova, Igor Levchenko, Katia Alexander   +6 more
wiley   +1 more source

Occurrence of Ammonia-Oxidizing Archaea in Wastewater Treatment Plant Bioreactors [PDF]

Applied and Environmental Microbiology, 2006
ABSTRACT We report molecular evidence that ammonia-oxidizing archaea (AOA) occur in activated sludge bioreactors used to remove ammonia from wastewater. Using PCR primers targeting archaeal ammonia monooxygenase subunit A ( amoA ) genes, we retrieved and compared 75 sequences from five wastewater treatment
Park, Hee-Deung, Wells, George F., Bae, Hyokwan, Criddle, Craig S., Francis, Christopher A.   +4 more
openaire   +3 more sources

Vertical segregation among pathways mediating nitrogen loss (N2 and N2O production) across the oxygen gradient in a coastal upwelling ecosystem [PDF]

, 2017
Indexación: ScopusThe upwelling system off central Chile (36.5 S) is seasonally subjected to oxygen (O2)-deficient waters, with a strong vertical gradient in O2 (from oxic to anoxic conditions) that spans a few metres (30-50€m interval) over the shelf ...
Farías, L., Galán, A., Saldías, G.S., Thamdrup, B.   +3 more
core   +4 more sources

Microbial regulation of global macroalgal blooms (green tides): From holobiont interactions to bloom dynamics and biogeochemistry

Limnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract Green tides caused by Ulva species have become one of the most serious marine ecological disasters, now impacting many coastal nations around the world. Although climatic and environmental drivers of these macroalgal blooms are well recognized, growing evidence identifies Ulva‐associated microbiota as potential pivotal regulators of bloom ...
Zhangyi Xia, Zenghu Zhang, Jiulong Zhao, Xiaojie Wang, Shanli Mou, Nianzhi Jiao, Yongyu Zhang   +6 more
wiley   +1 more source

Nanocomposite Reduces Volatile and Aqueous Reactive Nitrogen Losses From Soil Compared to Conventional and Alternative Fertilisers

Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT Reactive nitrogen losses from agriculture contribute substantially to greenhouse gas emissions, water pollution and ecosystem degradation. Controlled‐release fertiliser technologies offer potential solutions, yet few comprehensively evaluate performance across multiple nitrogen loss pathways and soil types.
Jessica Chadwick, Jingyi Shi, Megan L. Purchase, Peng Zhang, Iseult Lynch, Sami Ullah, Deying Wang, Ryan M. Mushinski   +7 more
wiley   +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  

Correlating microbial community profiles with geochemical data in highly stratified sediments from the Arctic Mid-Ocean Ridge [PDF]

, 2012
Microbial communities and their associated metabolic activity in marine sediments have a profound impact on global biogeochemical cycles. Their composition and structure are attributed to geochemical and physical factors, but finding direct correlations ...
Baumberger, Tamara, Flesland, Kristin, Fonseca, Rita, Hannisdal, Bjarte, Jorgensen, Steffen Leth, Lanzén, Anders, Pedersen, Rolf B., Schleper, Christa, Steen, Ida H., Thorseth, Ingunn H., Øvreås, Lise   +10 more
core   +1 more source

Reduced Tillage Intercropping With Thymus hyemalis Reshapes the Rare Soil Microbiome and Co‐Occurrence Networks in a Semi‐Arid Almond Orchard

Journal of Sustainable Agriculture and Environment, Volume 5, Issue 1, March 2026.
ABSTRACT Environmentally friendly farming practices are gaining interest, and intercropping is a promising option to protect soil health, yet its effects on orchard microbiomes and functions remain underexplored. In this study, we assessed a 3‐year intercropping assay of Capparis spinosa (D1) and Thymus hyemalis (D2) with almond and reduced tillage in ...
Jessica Cuartero, Beat Frey, Margarita Ros, Jose Antonio Pascual, Virginia Sánchez‐Navarro, Loredana Canfora, Onurcan Özbolat, Marcos Egea‐Cortines, Antonella Lamontanara, Carolina Boix‐Fayos, Maria Martinez‐Mena, Maria Almagro, Elvira Diaz‐Pereira, Raul Zornoza   +13 more
wiley   +1 more source

The response of nitrifier, N-fixer and denitrifier gene copy numbers to the nitrification inhibitor 3,4-dimethylpyrazole phosphate

Plant, Soil and Environment, 2013
A laboratory incubation experiment was conducted to examine the effects of 3,4-dimethylpyrazole phosphate (DMPP) on the transformation of urea-N and associated microbial communities in a low-fertility brown soil. The soil was supplied with urea at 180 kg
X.X. Dong, L.L. Zhang, Z.J. Wu, H.W. Zhang, P. Gong   +4 more
doaj   +1 more source