Results 31 to 40 of about 4,412 (150)

Investigating the Chemolithoautotrophic and Formate Metabolism of Nitrospira moscoviensis by Constraint-Based Metabolic Modeling and 13C-Tracer Analysis

open access: yesmSystems, 2021
Nitrite-oxidizing bacteria belonging to the genus Nitrospira mediate a key step in nitrification and play important roles in the biogeochemical nitrogen cycle and wastewater treatment.
Christopher E. Lawson   +10 more
doaj   +3 more sources

Niche differentiation of comammox Nitrospira in sediments of the Three Gorges Reservoir typical tributaries, China

open access: yesScientific Reports, 2022
Complete ammonia oxidizer (Comammox) can complete the whole nitrification process independently, whose niche differentiation is important guarantee for its survival and ecological function.
Jiahui Zhang   +8 more
doaj   +1 more source

Hot spring distribution and survival mechanisms of thermophilic comammox Nitrospira

open access: yesThe ISME Journal, 2023
Abstract The recent discovery of Nitrospira species capable of complete ammonia oxidation (comammox) in non-marine natural and engineered ecosystems under mesothermal conditions has changed our understanding of microbial nitrification.
Yan Zhang   +13 more
openaire   +7 more sources

Nitrite-Oxidizing Bacteria Community Composition and Diversity Are Influenced by Fertilizer Regimes, but Are Independent of the Soil Aggregate in Acidic Subtropical Red Soil

open access: yesFrontiers in Microbiology, 2018
Nitrification is the two-step aerobic oxidation of ammonia to nitrate via nitrite in the nitrogen-cycle on earth. However, very limited information is available on how fertilizer regimes affect the distribution of nitrite oxidizers, which are involved in
Shun Han   +7 more
doaj   +1 more source

Functionally relevant diversity of closely related Nitrospira in activated sludge [PDF]

open access: yesThe ISME Journal, 2014
Abstract Nitrospira are chemolithoautotrophic nitrite-oxidizing bacteria that catalyze the second step of nitrification in most oxic habitats and are important for excess nitrogen removal from sewage in wastewater treatment plants (WWTPs).
Christiane Gruber-Dorninger   +7 more
openaire   +2 more sources

A novel marine nitrite-oxidizing Nitrospira species from Dutch coastal North Sea water

open access: yesFrontiers in Microbiology, 2013
Marine microorganisms are important for the global nitrogen cycle, but marine nitrifiers, especially aerobic nitrite-oxidizers, remain largely unexplored.
Suzanne Caroline Marianne Haaijer   +7 more
doaj   +1 more source

Nitrospira bacteria in paddy soil reduced by biochar application [PDF]

open access: yesAgrosystems, Geosciences & Environment, 2020
AbstractBiochar application can depress nitrification in paddy soils, but the microbiological mechanisms involved in this process are not clearly understood. This study was conducted to test the hypothesis that biochar may affect nitrification bacteria in paddy soils.
Xiaohong Yin   +5 more
openaire   +2 more sources

The Genomic Potentials of NOB and Comammox Nitrospira in River Sediment Are Impacted by Native Freshwater Mussels

open access: yesFrontiers in Microbiology, 2018
Freshwater mussel assemblages of the Upper Mississippi River (UMR) sequester tons of ammonia- and urea-based biodeposits each day and aerate sediment through burrowing activities, thus creating a unique niche for nitrogen (N) cycling microorganisms. This
Ellen M. Black, Craig L. Just
doaj   +1 more source

Effect of the dilution rate on microbial competition: r-strategist can win over k-strategist at low substrate concentration. [PDF]

open access: yesPLoS ONE, 2017
The conditions present in both in vitro and in vivo ecosystems determine the microbial population harbouring it. One commonly accepted theory is that a species with a high substrate affinity and low growth rate (k-strategist) will win the competition ...
Mari-K H Winkler   +4 more
doaj   +1 more source

Ammonia- and Nitrite-Oxidizing Bacteria are Dominant in Nitrification of Maize Rhizosphere Soil Following Combined Application of Biochar and Chemical Fertilizer

open access: yesFrontiers in Microbiology, 2021
Autotrophic nitrification is regulated by canonical ammonia-oxidizing archaea (AOA) and bacteria (AOB) and nitrite-oxidizing bacteria (NOB). To date, most studies have focused on the role of canonical ammonia oxidizers in nitrification while neglecting ...
Ping Sun   +5 more
doaj   +1 more source

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