Results 21 to 30 of about 217,293 (183)

Ammonia-Oxidizing Archaea Dominate Ammonia-Oxidizing Communities within Alkaline Cave Sediments

open access: yesGeomicrobiology Journal, 2016
Nitrification represents one of the key steps in the global nitrogen cycle. While originally considered an exclusive metabolic capability of bacteria, the identification of the Thaumarchaeota revealed that ammonia-oxidizing archaea (AOA) are also ...
Hongmei Wang (190581)   +4 more
core   +2 more sources

Diversity and mode of transmission of ammonia-oxidizing archaea in marine sponges

open access: yesEnvironmental Microbiology, 2008
The model marine crenarchaeote ‘Cenarchaeum symbiosum’ is until now the only ammonia-oxidizing archaeon known from a marine sponge. Here, phylogenetic analyses based on the 16S rRNA and ammonia monooxygenase subunit A (amoA) genes revealed the presence ...
Stephen Whalan   +15 more
core   +5 more sources

Shifts of ammonia-oxidation process along salinity gradient in an estuarine wetland

open access: yesEcological Indicators, 2022
Ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) play an important role in nitrogen (N) cycling of the estuarine sediments. However, the shifts of potential ammonia oxidation rates (PARs) of AOA and AOB along different salinity ...
Weifang Hu   +6 more
doaj   +1 more source

The network of nitrifying and pathogenic prokaryotic interactions in a recirculating aquaculture system of a sole (Solea senegalensis) hatchery

open access: yesFrontiers in Marine Science, 2022
Prokaryotic interactions in recirculating aquaculture systems (RAS) environmental communities may play a crucial role in driving their functional potential. However, these interactions are often neglected.
Diana Bastos Almeida   +9 more
doaj   +1 more source

Effect of Long-Term Fertilization on Ammonia-Oxidizing Microorganisms and Nitrification in Brown Soil of Northeast China

open access: yesFrontiers in Microbiology, 2021
The objective of this study was to find out changes in ammonia oxidation microorganisms with respect to fertilizer as investigated by real-time polymerase chain reaction and high-throughput sequencing.
Fangfang Cai   +21 more
doaj   +1 more source

Individual and combined contamination of oxytetracycline and cadmium inhibited nitrification by inhibiting ammonia oxidizers

open access: yesFrontiers in Microbiology, 2022
IntroductionThe large-scale development of animal husbandry and industrialization lead to more and more serious co-contamination from heavy metals and antibiotics in soils.
Xiaoxu Cao   +9 more
doaj   +1 more source

The ecological dichotomy of ammonia-oxidizing archaea and bacteria in the hyper-arid soils of the Antarctic Dry Valleys [PDF]

open access: yes, 2014
The McMurdo Dry Valleys of Antarctica are considered to be one of the most physically and chemically extreme terrestrial environments on the Earth. However, little is known about the organisms involved in nitrogen transformations in these environments ...
Charles K. Lee   +13 more
core   +1 more source

Diversity and Abundance of Ammonia-Oxidizing Bacteria and Archaea in a Freshwater Recirculating Aquaculture System

open access: yesHayati Journal of Biosciences, 2018
The role of ammonia-oxidizing bacteria and archaea was evaluated using amoA gene in a freshwater recirculating system. Broken earthen pot pieces (BEP) were used as filter bed material.
Cherita Devi Khangembam   +2 more
doaj   +1 more source

Ammonia-oxidizing archaea and ammonia-oxidizing bacteria communities respond differently in oxy-gen-limited habitats

open access: yesFrontiers in Environmental Science, 2022
Ammonia-oxidizing archaea (AOA) and bacteria (AOB) are the most important ammonia oxidation functional community, while the coastal environment just provides a different oxygen environment for the ammonia oxidation process.
Jialin Du   +8 more
doaj   +1 more source

Genome gazing in ammonia-oxidizing archaea [PDF]

open access: yesNature Reviews Microbiology, 2019
This month’s Genome Watch highlights the unique evolutionary history, metabolic functions, and newly identified viruses and associated mobile genetic elements for the highly abundant and ubiquitous ammonia-oxidizing archaea.
openaire   +2 more sources

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