Results 111 to 120 of about 6,916 (190)

Discovery of several novel, widespread, and ecologically distinct marine Thaumarchaeota viruses that encode amoC nitrification genes

, 2019
Much of the diversity of prokaryotic viruses has yet to be described. In particular, there are no viral isolates that infect abundant, globally significant marine archaea including the phylum Thaumarchaeota.
Gabrielle Rocap, Fuhrman, Jed A., Nathan A. Ahlgren, Clara A. Fuchsman, Ahlgren, Nathan A., Rocap, Gabrielle, Fuchsman, Clara A., Jed A. Fuhrman   +7 more
core   +1 more source

Characterization of the metabolic properties and ecological functions of Thaumarchaeota in terrestrial environments

, 2023
Anthropogenic nitrogen inputs have disrupted global cycles, driving environmental issues such as eutrophication and biodiversity loss. Ammonia oxidation, the first step in nitrification, was long attributed to bacteria, but ammonia-oxidizing archaea (AOA)
Xu, Mouzhong
core   +1 more source

Metagenomic insights into effects of thiamine supplementation on ruminal non-methanogen archaea in high-concentrate diets feeding dairy cows

BMC Veterinary Research, 2019
Background Overfeeding of high-concentrate diet (HC) frequently leads to subacute ruminal acidosis (SARA) in modern dairy cows’ production. Thiamine supplementation has been confirmed to attenuate HC induced SARA by increasing ruminal pH and ratio of ...
Fuguang Xue, Xuemei Nan, Yunlei Li, Xiaohua Pan, Yuming Guo, Linshu Jiang, Benhai Xiong   +6 more
doaj   +1 more source

Direct and indirect causal effects of environmental variables upon the relative abundance of Thaumarchaeota in hypothesized path models.

, 2015
a Causal ordering is represented by arrows.b Significant (p < 0.05, t-statistic calculated from MLR using the OLS method) direct effects are displayed in bold.Direct and indirect causal effects of environmental variables upon the relative abundance of ...
Jin-Kyung Hong (560766), Jae-Chang Cho (560767)   +1 more
core   +1 more source

Potential recycling of thaumarchaeotal lipids by DPANN Archaea in seasonally hypoxic surface marine sediments [PDF]

, 2018
Thaumarchaeota synthesize specific glycerol dibiphytanyl glycerol tetraethers (GDGTs), the distribution of which is affected by temperature, thereby forming the basis of the paleotemperature proxy, TEX86.
Sinninghe Damsté, Jaap S., Hopmans, E.C., Hopmans, Ellen C., Lipsewers, Y.A., Villanueva, Laura, Lipsewers, Yvonne A., Jaap S. Sinninghe Damsté, Sinninghe Damsté, J.S., Yvonne A. Lipsewers, Laura Villanueva, Ellen C. Hopmans, Villanueva, L., Research Programme in Earth Sciences Utrecht (DES / IVAU), non-UU output of (former) DES-UU members   +13 more
core   +1 more source

Phylogenetic trees of 16S rRNA gene sequences of archaeal groups DHVEG1 (A) and Thaumarchaeota group C3 (B) with their closest relatives.

, 2015
Three representative reads of the most abundant OTUs for deep-sea hydrothermal vent euryarchaeotic group 1 (OTU-RS-DHVEG1) and two for Thaumarchaeota group C3 (OTU-RS-C3) were used to identify their closest relatives in the GenBank.
Zenon Batang (815873), Zhao Ming Gao (529648), Li Sheng He (815871), Abdulaziz Al-Suwailem (191872), Hui Luo Cao (815872), Pei-Yuan Qian (124761), Jiang Tao Li (815870), Bo Yang (104813), Yong Wang (12837)   +8 more
core   +1 more source

Coupling of diversification and pH adaptation during the evolution of terrestrial Thaumarchaeota

The Thaumarchaeota is an abundant and ubiquitous phylum of archaea that plays a major role in the global nitrogen cycle. Previous analyses of the ammonia monooxygenase gene amoA suggest that pH is an important driver of niche specialization in these ...
Williams TA, Kratsch C, Embley TM, Macqueen DJ, Gubry-Rangin C, Prosser JI, McHardy AC   +6 more
core   +1 more source

Seasonal and vertical distribution of putative ammonia-oxidizing thaumarchaeotal communities in an oligotrophic lake

, 2013
The discovery of Archaea carrying an amoA gene coding for the A-subunit of ammonia monooxygenase gave a boost to studies aimed at detecting this gene under diverse conditions.
Ecology and Biodiversity, Vissers, E.W., Organic geochemistry & molecular biogeology, Tourna, M., Sub Ecology and Biodiversity, Schleper, C., Blaga, C.I., Muyzer, G., Bodelier, P.L.E., Organic geochemistry, Sinninghe Damsté, J.S., Laanbroek, H.J., Research Programme in Earth Sciences Utrecht (DES / IVAU)   +12 more
core   +1 more source

Controls on the composition of hydroxylated isoGDGTs in cultivated ammonia oxidizing Thaumarchaeota

Abstract. Membrane lipids of ammonia-oxidizing Thaumarchaeota, in particular isoprenoidal glycerol dialkyl glycerol tetraethers (isoGDGTs) and hydroxylated isoGDGTs (OH-isoGDGTs), have been used as biomarkers and as proxies in various environments. Controlled growth experiments have been used to investigate the factors that influence the composition of
Devika Varma, Laura Villanueva, Nicole Bale, Pierre Offre, Gert-Jan Reichart, Stefan Schouten   +5 more
openaire   +2 more sources

Molecular Evolution of the Archaeal DNA-Dependent RNA Polymerase: Cooperative Changes in Subunit Composition and Specific Domains of Small Subunits. [PDF]

Int J Mol Sci
Shematorova EK, Shpakovski GV.
europepmc   +1 more source