Results 61 to 70 of about 1,496 (173)

Hydrological and microbial dynamics in an Arctic wastewater infiltration system

Vadose Zone Journal, Volume 25, Issue 2, March/April 2026.
Abstract Passive wastewater treatment systems are widely used in the Arctic, but studies addressing the vadose zone dynamics that influence the operation and performance of subsurface or soil‐based infiltration systems, such as rapid infiltration basins, are rare.
Débora Boratto, Yannan Huang, Lindsay Johnston, Craig Lake, Lauren Somers, Barret Kurylyk, Rob C. Jamieson   +6 more
wiley   +1 more source

Evaluation of four primer sets for analysis of comammox communities in black soils

Frontiers in Microbiology, 2022
Comammox, as a newly discovered ammonia oxidizer, urgently needs highly efficient and specific primers to detect its community structure and diversity. In this study, the performance of widely used primer set Ntsp-amoA 162F/359R and newly designed primer
Xin Bai, Xin Bai, Xiaojing Hu, Junjie Liu, Haidong Gu, Haidong Gu, Jian Jin, Xiaobing Liu, Guanghua Wang   +8 more
doaj   +1 more source

Hydrazine Synthase From Anammox Is Inhibited by Linear and Aromatic Alkynes

Environmental Microbiology, Volume 28, Issue 3, March 2026.
Linear and aromatic alkynes inhibit anammox in culture and in wetlands. The inhibition by alkynes is specific to the hydrazine synthase, a key enzyme in the anammox pathway. ABSTRACT N2O emissions by nitrifiers are often estimated using selective inhibitors, such as 1‐alkynes.
Cerys Maryan, Guylaine H. L. Nuijten, Andrew T. Crombie, Sebastian Lücker, Victoria Gibson, Marcela Hernández, J. Colin Murrell, Laura E. Lehtovirta‐Morley   +7 more
wiley   +1 more source

Rapid nitrification involving comammox and canonical Nitrospira at extreme pH in saline‐alkaline lakes

Environmental Microbiology, 2023
Abstract Nitrite‐oxidizing bacteria (NOB) catalyse the second nitrification step and are the main biological source of nitrate. The most diverse and widespread NOB genus is Nitrospira , which also contains complete ammonia oxidizers (comammox) that oxidize ammonia to nitrate.
Anne Daebeler, Queralt Güell‐Bujons, Maria Mooshammer, Thomas Zechmeister, Craig W. Herbold, Andreas Richter, Michael Wagner, Holger Daims   +7 more
openaire   +3 more sources

Metagenomic approaches reveal differences in genetic diversity and relative abundance of nitrifying bacteria and archaea in contrasting soils

Scientific Reports, 2021
The abundance and phylogenetic diversity of functional genes involved in nitrification were assessed in Rothamsted field plots under contrasting management regimes—permanent bare fallow, grassland, and arable (wheat) cultivation maintained for more than ...
Ian M. Clark, David J. Hughes, Qingling Fu, Maïder Abadie, Penny R. Hirsch   +4 more
doaj   +1 more source

Genome-centered metagenomics illuminates adaptations of core members to a partial Nitritation–Anammox bioreactor under periodic microaeration

Frontiers in Microbiology, 2023
The partial nitritation-anaerobic ammonium oxidation (anammox; PN-A) process has been considered a sustainable method for wastewater ammonium removal, with recent attempts to treat low-strength wastewater.
Yung-Hsien Shao, Yu-Wei Wu, Muhammad Naufal, Jer-Horng Wu   +3 more
doaj   +1 more source

Unveiling Global Diversity of Patescibacteriota and Functional Interactions with Host Microbes

Advanced Science, Volume 13, Issue 11, 23 February 2026.
Patescibacteriota represents a diverse group of ultra‐small epibiotic bacteria, which is largely overlooked. By integrating ribosomal protein S3‐based community profiling with MAG‐based metabolic potential analyses, this study provides new insights into their distribution, diversity, and potential interactions with other bacteria across diverse ...
Yanhan Ji, Xu Liu, Shuai Zhao, Sihan Zhou, Yufan Yang, Ping Zhang, Yu Shi, Wei Qin, Guibing Zhu, Yongguan Zhu, Yanzheng Gao, Jiandong Jiang, Baozhan Wang   +12 more
wiley   +1 more source

Design and Assessment of Species-Level qPCR Primers Targeting Comammox

Frontiers in Microbiology, 2019
Published PCR primers targeting the ammonia monooxygenase gene (amoA) were applied to samples from activated sludge systems operated with low dissolved oxygen (DO) to quantify total and clade-level Nitrospira that perform complete ammonium oxidation ...
Natalie K. Beach, Daniel R. Noguera
doaj   +1 more source

Primer evaluation and development of a droplet digital PCR protocol targeting amoA genes for the quantification of Comammox in lakes

Scientific Reports, 2021
To date, little is known about the ecological significance of Comammox (COMplete AMMonia OXidizers) Nitrospira in the water column of freshwater lakes. Water samples collected along depth profiles were used to investigate the distribution of Comammox in ...
Manuel Harringer, Albin Alfreider
doaj   +1 more source

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