Results 11 to 20 of about 198 (115)

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

open access: yesFrontiers 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   +8 more
doaj   +3 more sources

Evolutionary Ecology of Natural Comammox Nitrospira Populations [PDF]

open access: yesmSystems, 2022
Microbes commonly exist in diverse and complex communities where species interact, and their genomic repertoires evolve over time. Our understanding of species interaction and evolution has increased during the last decades, but most studies of ...
Alejandro Palomo   +3 more
doaj   +3 more sources

Design and Assessment of Species-Level qPCR Primers Targeting Comammox [PDF]

open access: yesFrontiers 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   +3 more sources

Enrichment of Comammox and Nitrite-Oxidizing Nitrospira From Acidic Soils [PDF]

open access: yesFrontiers in Microbiology, 2020
In agricultural soils fertilized with a high amount of ammonium nitrogen, the pH decreases because of the oxidation of ammonia by nitrifiers. Molecular-based analyses have revealed that members of the genus Nitrospira dominate over other nitrifiers in ...
Yu Takahashi   +6 more
doaj   +3 more sources

Unraveling the important role of comammox Nitrospira to nitrification in the coastal aquaculture system

open access: yesFrontiers in Microbiology
Increasing nitrogen (N) input to coastal ecosystems poses a serious environmental threat. It is important to understand the responses and feedback of N removal microbial communities, particularly nitrifiers including the newly recognized complete ammonia-
Xueqin Yang   +13 more
doaj   +3 more sources

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

Genome-Enabled Insights into the Ecophysiology of the Comammox Bacterium “Candidatus Nitrospira nitrosa” [PDF]

open access: yesmSystems, 2017
The recently discovered comammox bacteria have the potential to completely oxidize ammonia to nitrate. These microorganisms are part of the Nitrospira genus and are present in a variety of environments, including biological nutrient removal (BNR) systems.
Pamela Y. Camejo   +3 more
doaj   +3 more sources

Ammonium Removal in Aquaponics Indicates Participation of Comammox Nitrospira [PDF]

open access: yesCurrent Microbiology, 2021
AbstractAquaponic systems are sustainable solutions for food production combining fish growth (aquaculture) and production of vegetables (hydroponic) in one recirculating system. In aquaponics, nitrogen-enriched wastewater from fish in the aquaculture serves as fertilizer for the plants in the hydroponics, while the nitrogen-depleted and detoxified ...
Heise, Julia   +3 more
openaire   +3 more sources

Complete nitrification: insights into the ecophysiology of comammox Nitrospira [PDF]

open access: yesApplied Microbiology and Biotechnology, 2018
Nitrification, the oxidation of ammonia via nitrite to nitrate, has been considered to be a stepwise process mediated by two distinct functional groups of microorganisms. The identification of complete nitrifying Nitrospira challenged not only the paradigm of labor division in nitrification, it also raises fundamental questions regarding the ...
Hanna Koch   +2 more
openaire   +4 more sources

Diversity and abundance of comammox bacteria in the sediments of an urban lake [PDF]

open access: yesJournal of Applied Microbiology, 2020
Although comammox have been discovered in a variety of ecosystems, there are few studies in urban lakes. This paper attempted to confirm whether this ammonia-oxidizing microbe exists in urban lakes and to determine the factors influencing its existence.This study investigated the diversity and abundance of comammox bacteria in sediments of a typical ...
Y. Xu   +7 more
openaire   +3 more sources

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