Results 41 to 50 of about 8,377 (202)

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

Ammonia-oxidizing archaea possess a wide range of cellular ammonia affinities. [PDF]

ISME J, 2022
Nitrification, the oxidation of ammonia to nitrate, is an essential process in the biogeochemical nitrogen cycle. The first step of nitrification, ammonia oxidation, is performed by three, often co-occurring guilds of chemolithoautotrophs: ammonia ...
Jung MY, Sedlacek CJ, Kits KD, Mueller AJ, Rhee SK, Hink L, Nicol GW, Bayer B, Lehtovirta-Morley L, Wright C, de la Torre JR, Herbold CW, Pjevac P, Daims H, Wagner M.   +14 more
europepmc   +3 more sources

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

Global Biodiversity of Aquatic Ammonia-Oxidizing Archaea is Partitioned by Habitat [PDF]

Frontiers in Microbiology, 2012
Archaea play an important role in nitrification and are, thus, inextricably linked to the global carbon and nitrogen cycles. Since the initial discovery of an ammonia monooxygenase α-subunit (amoA) gene associated with an archaeal metagenomic fragment, archaeal amoA sequences have been detected in a wide variety of nitrifying environments.
Steven J Biller, Steven J Biller, Annika C Mosier, Annika C Mosier, George F Wells, George F Wells, Christopher A Francis   +6 more
openaire   +3 more sources

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

, 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, Catarina M. Magalhães, Frank-Fahle, Béatrice, Machado, Anna, Magalhães, Catarina M., S. Craig Cary, Lee, Charles Kai-Wu, Catarina Maria Magalhães, Cary, S. Craig, Craig S. Cary, Béatrice Frank-Fahle, Ana Machado, Ana eMachado, Béatrice eFrank-Fahle   +13 more
core   +1 more source

Distribution and Abundance of Archaea in South China Sea SpongeHoloxeasp. and the Presence of Ammonia-Oxidizing Archaea in Sponge Cells [PDF]

, 2011
Compared with bacterial symbionts, little is known about archaea in sponges especially about their spatial distribution and abundance. Understanding the distribution and abundance of ammonia-oxidizing archaea will help greatly in elucidating the ...
Zhiyong Li, Fang Liu, Fengli Zhang, Minqi Han, Baohua Zhang   +4 more
core   +1 more source

Drivers of archaeal ammonia-oxidizing communities in soil

Frontiers in Microbiology, 2012
Soil ammonia-oxidizing archaea (AOA) are highly abundant and play an important role in the nitrogen cycle. In addition, AOA have a significant impact on soil quality.
Kateryna eZhalnina, Patricia eDörr de Quadros, Patricia eDörr de Quadros, Flavio eA. O. Camargo, Eric W Triplett   +4 more
doaj   +1 more source

Community Structure of Ammonia-Oxidizing Archaea and Ammonia-Oxidizing Bacteria in Soil Treated with the Insecticide Imidacloprid [PDF]

BioMed Research International, 2015
The purpose of this experiment was to assess the effect of imidacloprid on the community structure of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in soil using the denaturing gradient gel electrophoresis (DGGE) approach. Analysis showed that AOA and AOB community members were affected by the insecticide treatment.
Cycoń, Mariusz, Piotrowska-Seget, Zofia
openaire   +4 more sources

Effect of different ammonia concentrations on community succession of ammonia-oxidizing microorganisms in a simulated paddy soil column. [PDF]

PLoS ONE, 2012
Ammonia oxidation is performed by both ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA). To explore the effect of ammonia concentration on the population dynamic changes of ammonia-oxidizing microorganisms, we examined changes in the ...
Hu Baolan, Liu Shuai, Shen Lidong, Zheng Ping, Xu Xiangyang, Lou Liping   +5 more
doaj   +1 more source

Influence of soil properties on archaeal diversity and distribution in the McMurdo Dry Valleys, Antarctica

, 2014
Archaea are the least understood members of the microbial community in Antarctic mineral soils. Although their occurrence in Antarctic coastal soils has been previously documented, little is known about their distribution in soils across the McMurdo Dry ...
Barrett, John E., Richter, Ingrid, Herbold, Craig W., Lee, Charles Kai-Wu, Cary, S. Craig, McDonald, Ian R.   +5 more
core   +1 more source