Results 31 to 40 of about 5,499 (152)

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, Man-Young Jung, Julia Vierheilig, Petra Pjevac, Christopher J. Sedlacek, Shurong Liu, Craig Herbold, Lisa Y. Stein, Andreas Richter, Holger Wissel, Nicolas Brüggemann, Michael Wagner, Holger Daims   +12 more
doaj   +1 more source

Ammonia oxidizers in the sea-surface microlayer of a coastal marine inlet. [PDF]

PLoS ONE, 2018
Planktonic archaea are thought to play an important role in ammonia oxidation in marine environments. Data on the distribution, abundance, and diversity of ammonia oxidizers in the coastal sea-surface microlayer (SML) are lacking, despite previous ...
Shu-Kuan Wong, Minoru Ijichi, Ryo Kaneko, Kazuhiro Kogure, Koji Hamasaki   +4 more
doaj   +1 more source

Microbial community changes along the active seepage site of one cold seep in the Red Sea

Frontiers in Microbiology, 2015
The active seepage of the marine cold seeps could be a critical process for the exchange of energy between the submerged geosphere and the sea floor environment through organic-rich fluids, potentially even affecting surrounding microbial habitats ...
Huiluo eCao, Weipeng eZhang, Yong eWang, Yong eWang, Pei-Yuan N/a Qian   +4 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

Nitric oxide scavengers differentially inhibit ammonia oxidation in ammonia-oxidizing archaea and bacteria [PDF]

FEMS Microbiology Letters, 2016
Differential inhibitors are important for measuring the relative contributions of microbial groups, such as ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA), to biogeochemical processes in environmental samples. In particular, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide (PTIO) represents a nitric oxide scavenger used for ...
Laura A, Sauder, Ashley A, Ross, Josh D, Neufeld   +2 more
openaire   +2 more sources

Nitrogen and Phosphorus Fertilization Reshapes the Abundance and Structure of Ammonia Oxidizers on a Leymus chinensis Steppe in Northern China

Agronomy, 2022
Although nitrogen (N) and phosphorus (P) fertilization are important for maintaining the health and productivity of Leymus chinensis steppe, their impact on the abundance and community structure of ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing ...
Yan Qin, Wenhui Liu, Feng He, Xianglin Li   +3 more
doaj   +1 more source

Competition between ammonia-oxidizing archaea and complete ammonia oxidizers from freshwater environments. [PDF]

Appl Environ Microbiol
Nitrification is a key process in the global nitrogen cycle. Aerobic ammonia oxidizers play a central role in the nitrogen cycle by performing the first step of nitrification. Ammonia-oxidizing archaea (AOA) and complete ammonia oxidizers (comammox) are the dominant nitrifiers in environments with low ammonium availability.
Ghimire-Kafle S, Weaver ME, Kimbrel MP, Bollmann A.   +3 more
europepmc   +3 more sources

Metagenomic Analysis of Ammonia-Oxidizing Archaea Affiliated with the Soil Group [PDF]

Frontiers in Microbiology, 2012
Ammonia-oxidizing archaea (AOA) have recently been recognized as a significant component of many microbial communities and represent one of the most abundant prokaryotic groups in the biosphere. However, only few AOA have been successfully cultivated so far and information on the physiology and genomic content remains scarce.
Bartossek, Rita, Spang, Anja, Weidler, Gerhard, Lanzén, Anders, Schleper, Christa Maria   +4 more
openaire   +7 more sources

Archaeal dominated ammonia-oxidizing communities in Icelandic grassland soils are moderately affected by long-term N fertilization and geothermal heating

Frontiers in Microbiology, 2012
The contribution of ammonia-oxidizing bacteria and archaea (AOB and AOA, respectively) to the net oxidation of ammonia varies greatly between terrestrial environments.
Anne eDaebeler, Anne eDaebeler, Guy C.J. Abell, Paul L.E. Bodelier, Levente eBodrossy, Dion M.F. Frampton, Mariet M. Hefting, Hendrikus J. Laanbroek, Hendrikus J. Laanbroek   +8 more
doaj   +1 more source

Production and Excretion of Polyamines To Tolerate High Ammonia, a Case Study on Soil Ammonia-Oxidizing Archaeon “Candidatus Nitrosocosmicus agrestis”

mSystems, 2021
Ammonia tolerance is a universal characteristic among the ammonia-oxidizing bacteria (AOB); in contrast, the known species of ammonia-oxidizing archaea (AOA) have been regarded as ammonia sensitive, until the identification of the genus “Candidatus ...
Liangting Liu, Mengfan Liu, Yiming Jiang, Weitie Lin, Jianfei Luo   +4 more
doaj   +1 more source