Results 61 to 70 of about 6,916 (190)

Chemoautotrophic growth of ammonia-oxidizing Thaumarchaeota enriched from a pelagic redox gradient in the Baltic Sea

open access: yesFrontiers in Microbiology, 2015
Ammonia-oxidizing archaea (AOA) are an important component of the planktonic community in aquatic habitats, linking nitrogen and carbon cycles through nitrification and carbon fixation.
Carlo eBerg   +5 more
doaj   +1 more source

Impact of Terrestrial Input on Deep-Sea Benthic Archaeal Community Structure in South China Sea Sediments

open access: yesFrontiers in Microbiology, 2020
Archaea are widespread in marine sediments and play important roles in the cycling of sedimentary organic carbon. However, factors controlling the distribution of archaea in marine sediments are not well understood.
Dengxun Lai   +12 more
doaj   +1 more source

Geochemistry and Thaumarchaeota abundances in North Sea water samples

open access: yes, 2013
Geochemistry and Thaumarchaeota abundances in North Sea surface ...
Bale, Nicole Jane   +9 more
core   +1 more source

Ammonia oxidation is not required for growth of Group 1.1c soil Thaumarchaeota [PDF]

open access: yesFEMS Microbiology Ecology, 2015
Thaumarchaeota are among the most abundant organisms on Earth and are ubiquitous. Within this phylum, all cultivated representatives of Group 1.1a and Group 1.1b Thaumarchaeota are ammonia oxidizers, and play a key role in the nitrogen cycle. While Group 1.1c is phylogenetically closely related to the ammonia-oxidizing Thaumarchaeota and is abundant in
Weber, Eva B   +3 more
openaire   +3 more sources

Candidatus Nitrosocaldus cavascurensis, an Ammonia Oxidizing, Extremely Thermophilic Archaeon with a Highly Mobile Genome

open access: yesFrontiers in Microbiology, 2018
Ammonia oxidizing archaea (AOA) of the phylum Thaumarchaeota are widespread in moderate environments but their occurrence and activity has also been demonstrated in hot springs. Here we present the first enrichment of a thermophilic representative with a
Sophie S. Abby   +8 more
doaj   +1 more source

Similar microbial communities found on two distant seafloor basalts

open access: yesFrontiers in Microbiology, 2015
The oceanic crust forms two thirds of the Earth’s surface and hosts a large phylogenetic and functional diversity of microorganisms. While advances have been made in the sedimentary realm, our understanding of the igneous rock portion as a microbial ...
Esther eSinger   +3 more
doaj   +1 more source

Geographic distribution of archaeal ammonia oxidizing ecotypes in the Atlantic Ocean

open access: yesFrontiers in Microbiology, 2016
In marine ecosystems, Thaumarchaeota are most likely the major ammonia oxidizers. While ammonia concentrations vary by about two orders of magnitude in the oceanic water column, archaeal ammonia oxidizers (AOA) vary by only one order of magnitude from ...
Eva eSintes   +4 more
doaj   +1 more source

Low genome content diversity of marine planktonic Thaumarchaeota

open access: yesEnvironmental Microbiology Reports, 2016
Summary Members of Thaumarchaeota are responsible for much of the ammonia oxidation occurring in the ocean. Recent studies showed that marine Thaumarchaeota have versatile metabolic capabilities, but sequencing additional genomes has not significantly increased the gene content ascribed to this group.
Haiwei, Luo   +3 more
openaire   +3 more sources

Lack of 13C-label incorporation suggests low turnover rates of thaumarchaeal intact polar tetraether lipids in sediments from the Iceland shelf [PDF]

open access: yesBiogeosciences, 2014
Thaumarchaeota are amongst the most abundant microorganisms in aquatic environments, however, their metabolism in marine sediments is still debated. Labeling studies in marine sediments have previously been undertaken, but focused on complex organic ...
S. K. Lengger   +4 more
doaj   +1 more source

Transcriptomic evidences for microbial carbon and nitrogen cycles in the deoxygenated seawaters of Bohai Sea

open access: yesEnvironment International, 2022
Eutrophication-induced water deoxygenation occurs continually in coastal oceans, and alters community structure, metabolic processes, and the energy shunt, resulting in a major threat to the ecological environment.
Yu Han   +5 more
doaj   +1 more source

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