Results 61 to 70 of about 2,030 (196)

Ammonia-oxidizing archaea and complete ammonia-oxidizing Nitrospira in water treatment systems

open access: yesWater Research X, 2022
Nitrification, the oxidation of ammonia to nitrate via nitrite, is important for many engineered water treatment systems. The sequential steps of this respiratory process are carried out by distinct microbial guilds, including ammonia-oxidizing bacteria (
Sarah Al-Ajeel   +4 more
doaj   +1 more source

Principles for Rigorous Design and Application of Synthetic Microbial Communities

open access: yesAdvanced Science, Volume 13, Issue 10, 18 February 2026.
SynComs are artificially designed to enable inter‐species metabolic interactions, metabolic division of labor, and ecological interactions that can elicit phenotypes like colonization stability and environmental adaptation. This systematic review explores the processes used to construct SynComs, the assessment of the mechanisms of metabolic interaction
Yuxiao Zhang   +21 more
wiley   +1 more source

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

open access: yesFrontiers 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   +3 more
doaj   +1 more source

Spatial and Temporal Variability of Microbial Nitrogen Cycling Genes in Arctic Streams

open access: yesGlobal 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   +11 more
wiley   +1 more source

Impact of comammox process on membrane-aerated biofilm reactor for autotrophic nitrogen removal

open access: yesWater Research X
This study compared the simulation results of the side-stream membrane-aerated biofilm reactor (MABR) in terms of total nitrogen (TN) removal and N2O production obtained by the conventional comammox-exclusive biological nitrogen removal (BNR) model and ...
Jiaying Hou   +4 more
doaj   +1 more source

Growth of complete ammonia oxidizers on guanidine. [PDF]

open access: yesNature
Guanidine is a chemically stable nitrogen compound that is excreted in human urine and is widely used in manufacturing of plastics, as a flame retardant and as a component of propellants, and is well known as a protein denaturant in biochemistry 1–3 ...
Palatinszky M   +20 more
europepmc   +3 more sources

Plant Identity Impacts the Soil Microbiome More Than Interspecific Interactions in Intensively Managed Grasslands

open access: yesEuropean Journal of Soil Science, Volume 77, Issue 1, January–February 2026.
The impact of plant identity and interspecific interactions on the soil microbiome in intensively managaged grasslands. ABSTRACT Plants and soil microbes are intricately linked, and agricultural production relies heavily on microbially mediated ecosystem services. However, the effects of plant diversity (richness, relative abundance and composition) on
Kerry B. Ryan   +5 more
wiley   +1 more source

Community Composition and Abundance of Bacterial, Archaeal and Nitrifying Populations in Savanna Soils on Contrasting Bedrock Material in Kruger National Park, South Africa [PDF]

open access: yes, 2016
Savannas cover at least 13% of the global terrestrial surface and are often nutrient limited, especially by nitrogen. To gain a better understanding of their microbial diversity and the microbial nitrogen cycling in savanna soils, soil samples were ...
Cassandre S. Lazar   +6 more
core   +3 more sources

Genomic and Physiological Characteristics of a Novel Nitrite-Oxidizing Nitrospira Strain Isolated From a Drinking Water Treatment Plant

open access: yesFrontiers in Microbiology, 2020
Nitrite-oxidizing bacteria (NOB) catalyze the second step of nitrification, which is an important process of the biogeochemical nitrogen cycle and is exploited extensively as a biological nitrogen removal process.
Hirotsugu Fujitani   +9 more
doaj   +1 more source

Soil pH modulates microbial nitrogen allocation in soil via compositional and metabolic shifts across forests in Japan

open access: yesiMetaOmics, Volume 2, Issue 4, December 2025.
This study reveals how soil pH regulates microbial N allocation in forest soils across Japan. We show that microbial abundance controls the overall rate of N cycling, while microbial composition and metabolic potential determine whether ammonium is released or retained.
Yaping Liu   +9 more
wiley   +1 more source

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