Results 41 to 50 of about 96,212 (342)
Population Dynamics and Community Composition of Ammonia Oxidizers in Salt Marshes after the Deepwater Horizon Oil Spill [PDF]
, 2016 The recent oil spill in the Gulf of Mexico had significant effects on microbial communities in the Gulf, but impacts on nitrifying communities in adjacent salt marshes have not been investigated.
Bernhard, Anne E +4 more
core +2 more sources
, 2021 The first step of autotrophic nitrification is performed by ammonia-oxidizing archaea (AOA) and bacteria (AOB). Recent studies show that their relative contributions are determined by the substrate sources and availability, yet evidence provided by ...
T. Rütting +3 more
semanticscholar +1 more source
Annals of Microbiology, 2014 The communities of nitrifying microorganisms were identified in samples taken from six shrimp ponds in Thailand (five outdoor-earthen ponds and one indoor pond). The sequences of ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and nitrite-oxidizing bacteria (NOB) were analyzed after specific PCR amplification of the 16S rRNA or amoA ...
Papitchaya Srithep +5 more
openaire +1 more source
Low yield and abiotic origin of N2O formed by the complete nitrifier Nitrospira inopinata
Nature Communications, 2019 Ammonia-oxidizing bacteria and archaea are major producers of the gases nitrous oxide and nitric oxide. Here, Kits et al. show that a complete ammonia-oxidizing (comammox) bacterium emits nitrous oxide at levels that are comparable to those produced by ...
K. Dimitri Kits +12 more
doaj +1 more source
Responses of Ammonia-Oxidizing Microorganisms to Intercropping Systems in Different Seasons
Agriculture, 2021 Intercropping plays an essential role in agricultural production, impacting the soil’s physical and chemical properties and microbial communities. However, the responses of ammonia-oxidizing microorganisms in the continuous-cropping soil to different ...
Xingjia He, Sen Li, Fengzhi Wu
doaj +1 more source
Expansion of Thaumarchaeota habitat range is correlated with horizontal transfer of ATPase operons. [PDF]
, 2019 Thaumarchaeota are responsible for a significant fraction of ammonia oxidation in the oceans and in soils that range from alkaline to acidic. However, the adaptive mechanisms underpinning their habitat expansion remain poorly understood.
Bartlett, Douglas H +24 more
core +2 more sources
Applied Water Science, 2019 The interaction of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) is of considerable importance in nitrification process. Ecophysiological interactions between the communities of AOB and NOB were investigated by monitoring NO2− as ...
Arsalan Sepehri, M. Sarrafzadeh
semanticscholar +1 more source
Competition between Ammonia-Oxidizing Bacteria and Benthic Microalgae [PDF]
Applied and Environmental Microbiology, 2004 ABSTRACTThe abundance, activity, and diversity of ammonia-oxidizing bacteria (AOB) were studied in prepared microcosms with and without microphytobenthic activity. In the microcosm without alga activity, both AOB abundance, estimated by real-time PCR, and potential nitrification increased during the course of the experiment.
Risgaard-Petersen, N. +3 more
openaire +4 more sources
Frontiers in Microbiology, 2022 To achieve energy-efficient shortcut nitrogen removal of wastewater in the future, selective elimination of nitrite-oxidizing bacteria (NOB) while enriching ammonia-oxidizing microorganisms is a crucial step. However, the underlying mechanisms of partial
Yu Xue +4 more
doaj +1 more source
Effect of Tidal Cycling Rate on the Distribution and Abundance of Nitrogen-Oxidizing Bacteria in a Bench-Scale Fill-and-Drain Bioreactor [PDF]
, 2018 Most domestic wastewater can be effectively treated for secondary uses by engineered biological systems. These systems rely on microbial activity to reduce nitrogen (N) content of the reclaimed water.
Battistelli, Joseph M. +2 more
core +3 more sources