Results 11 to 20 of about 163 (120)

Nitrogen source influences the interactions of comammox bacteria with aerobic nitrifiers

open access: yesMicrobiology Spectrum
While the co-existence of comammox Nitrospira with canonical nitrifiers is well documented in diverse ecosystems, there is still a dearth of knowledge about the mechanisms underpinning their interactions.
Katherine Jeanne Vilardi   +8 more
doaj   +3 more sources

Metagenomic Evidence for the Presence of Comammox Nitrospira-Like Bacteria in a Drinking Water System [PDF]

open access: yesmSphere, 2016
We report metagenomic evidence for the presence of a Nitrospira-like organism with the metabolic potential to perform the complete oxidation of ammonia to nitrate (i.e., it is a complete ammonia oxidizer [comammox]) in a drinking water system.
Ameet J. Pinto   +5 more
doaj   +4 more sources

Sustained nitrogen loss in a symbiotic association of Comammox Nitrospira and Anammox bacteria [PDF]

open access: yesWater Research, 2020
ABSTRACT The discovery of complete aerobic and anaerobic ammonia-oxidizing bacteria (Comammox and Anammox) significantly altered our understanding of the global nitrogen cycle. A high affinity for ammonia ( K m(app),NH3 ≈ 63nM) and oxygen place the first described ...
Ekaterina Y. Gottshall   +7 more
openaire   +3 more sources

Expanding perspectives of soil nitrification to include ammonia‐oxidizing archaea and comammox bacteria [PDF]

open access: yesSoil Science Society of America Journal, 2020
Abstract Catalyzed by multiple groups of phylogenetically distinct microorganisms, soil nitrification impacts ground water quality, greenhouse gas emissions, and agricultural practices. This review explores known microbial players involved in nitrification, encompassing aspects of biogeography, phylogenetic ...
Xinda Lu   +3 more
openaire   +1 more source

Abundance and community composition of comammox bacteria in different ecosystems by a universal primer set [PDF]

open access: yesScience of The Total Environment, 2018
Abstract Complete ammonia oxidizing bacteria (CAOB) have been recognized as a new member of ammonia-oxidizing microorganisms (AOMs) due to its single-step nitrification capability. However, the abundance and diversity of CAOB in environmental ecosystems were still far from known owing to the lack of specific molecular
Zhao, Zhirong   +7 more
openaire   +2 more sources

Benzimidazole fungicide biotransformation by comammox Nitrospira bacteria: Transformation pathways and associated proteomic responses

open access: yesJournal of Hazardous Materials, 2023
Benzimidazole fungicides are frequently detected in aquatic environments and pose a serious health risk. Here, we investigated the metabolic capacity of the recently discovered complete ammonia-oxidizing (comammox) Nitrospira inopinata and kreftii to transform a representative set of benzimidazole fungicides (i.e., benzimidazole, albendazole ...
Han, Ping   +11 more
openaire   +3 more sources

Niche Differentiation of Comammox Nitrospira in the Mudflat and Reclaimed Agricultural Soils Along the North Branch of Yangtze River Estuary

open access: yesFrontiers in Microbiology, 2021
The discovery of complete ammonia oxidation (comammox), oxidizing ammonia to nitrate via nitrite in a single organism, has redefined the traditional recognition of the two-step nitrification driven by two functional groups (ammonia-oxidizing and nitrite ...
Xinxin Wang   +13 more
doaj   +1 more source

Distribution and Diversity of Comammox Nitrospira in Coastal Wetlands of China

open access: yesFrontiers in Microbiology, 2020
Complete ammonia oxidizers (comammox), able to individually oxidize ammonia to nitrate, are considered to play a significant role in the global nitrogen cycle.
Dongyao Sun   +11 more
doaj   +1 more source

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

Nitrogen Kinetic Isotope Effects of Nitrification by the Complete Ammonia Oxidizer Nitrospira inopinata

open access: yesmSphere, 2021
Analysis of nitrogen isotope fractionation effects is useful for tracing biogeochemical nitrogen cycle processes. Nitrification can cause large nitrogen isotope effects through the enzymatic oxidation of ammonia (NH3) via nitrite (NO2−) to nitrate (NO3−)
Shurong Liu   +5 more
doaj   +1 more source

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