Results 51 to 60 of about 217,293 (183)

MAGs of Ammonia-Oxidizing Archaea in Everglades Agricultural Area Soil

open access: yes, 2022
MAGs of Ammonia-Oxidizing Archaea in Everglades Agricultural Area ...
University of Florida (17855033)
core  

Distribution and Activity of Ammonia-Oxidizers on the Size-Fractionated Particles in the Pearl River Estuary

open access: yesFrontiers in Marine Science, 2021
To distinguish between the distribution and activity of ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) in the Pearl River estuary (PRE), we investigated the DNA- and cDNA-based β-proteobacterial and archaeal amoA genes on three size-
Li Ma   +8 more
doaj   +1 more source

Influence of oxygen availability on the activities of ammonia‐oxidizing archaea

open access: yesEnvironmental Microbiology Reports, 2017
Summary Recent studies point to the importance of oxygen (O 2 ) in controlling the distribution and activity of marine ammonia‐oxidizing archaea (AOA), one of the most abundant prokaryotes in the ocean. The AOA are associated with regions of low O 2
Wei, Qin   +6 more
openaire   +3 more sources

Abundance of Ammonia-Oxidizing Archaea and Bacteria along an Estuarine Salinity Gradient in Relationship to Potential Nitrification Rates [PDF]

open access: yes, 2010
Abundance of ammonia-oxidizing Archaea (AOA) was found to be always greater than that of ammonia-oxidizing Bacteria along an estuarine salinity gradient, and AOA abundance was highest at intermediate salinity.
Bernhard, Anne E   +5 more
core   +2 more sources

Ammonia oxidizers offset acidification stress via adaptive substrate affinity in aquatic ecosystems

open access: yesNature Communications
Ammonia oxidation, a critical nitrogen cycle process, exhibits contradictory responses to aquatic acidification, and the underlying mechanism remains unresolved. Here, through pH manipulation experiments across diverse ecosystems and with a model ammonia-
Senwei Tong   +6 more
doaj   +1 more source

Influences of soil properties on archaeal diversity and distribution in the McMurdo Dry Valleys, Antarctica [PDF]

open access: yes, 2011
The Antarctic Dry Valleys are characterized by extremely low temperatures, arid conditions, high salinity and virtual absence of plants. Therefore, food webs of these microbially dominated soils are among the simplest on earth making these mineral soils ...
Richter, Ingrid
core  

Abundance and composition of ammonia‐oxidizing bacteria and ammonia‐oxidizing archaea communities of an alkaline sandy loam [PDF]

open access: yesEnvironmental Microbiology, 2008
Summary The abundance and composition of soil ammonia‐oxidizing bacteria (AOB) and ammonia‐oxidizing archaea (AOA) communities under different long‐term (17 years) fertilization practices were investigated using real‐time polymerase chain reaction and denaturing gradient gel electrophoresis (DGGE).
Ju-pei, Shen   +4 more
openaire   +2 more sources

Ammonium Availability Affects the Ratio of Ammonia-Oxidizing Bacteria to Ammonia-Oxidizing Archaea in Simulated Creek Ecosystems

open access: yes, 2011
The ammonia-oxidizing microbial community colonizing clay tiles in flow channels changed in favor of ammonia-oxidizing bacteria during a 12-week incubation period even at originally high ratios of ammonia-oxidizing archaea to ammonia-oxidizing bacteria ...
Kirsten Küsel   +3 more
core   +1 more source

Immobilization of active ammonia-oxidizing archaea in hydrogel beads

open access: yesnpj Clean Water, 2021
Ammonia-oxidizing archaea (AOA) are major players in the nitrogen cycle but their cultivation represents a major challenge due to their slow growth rate and limited tendency to form biofilms. In this study, AOA was embedded in small (~2.5 mm) and large (~
Matthieu Landreau   +3 more
doaj   +1 more source

Exploring protein N-glycosylation in ammonia-oxidizing Nitrososphaerota archaea through glycoproteomic analysis

open access: yesmBio
Ammonia-oxidizing archaea of the phylum Nitrososphaerota, formerly known as Thaumarchaeota, are globally distributed and play critical roles in the nitrogen and carbon cycles, particularly in environments with low ammonia concentrations.
Satoshi Nakagawa   +9 more
doaj   +1 more source

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