Results 41 to 50 of about 5,341 (161)
Similar microbial communities found on two distant seafloor basalts
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
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
Lack of 13C-label incorporation suggests low turnover rates of thaumarchaeal intact polar tetraether lipids in sediments from the Iceland shelf [PDF]
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
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
Low genome content diversity of marine planktonic Thaumarchaeota
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
Read the free Plain Language Summary for this article on the Journal blog. Abstract Microplastics (MPs) are widespread in terrestrial ecosystems, raising global concerns that they may disrupt soil organic carbon (SOC) cycling and undermine agroecosystem contributions to climate mitigation.
Meng‐Ying Li +11 more
wiley +1 more source
Archaeal Tetraether Lipids as Tracers for Past Marine Environmental Change
Abstract Archaea are single‐celled microorganisms that are abundant in marine environments and play a key role in the carbon and nitrogen cycles. Archaea can biosynthesize a wide variety of isoprenoid membrane lipids, including isoprenoid glycerol dibiphytanyl glycerol tetraethers (isoGDGTs).
Felix J. Elling +39 more
wiley +1 more source
Crenarchaeol is a unique isoprenoid glycerol dibiphytanyl glycerol tetraether (iGDGT) lipid, which is only identified in cultures of ammonia-oxidizing Thaumarchaeota. However, the taxonomic origins of crenarchaeol have been debated recently. The archaeal
Fuyan Li +8 more
doaj +1 more source
Diversity and seasonal dynamics of airborne archaea [PDF]
Archaea are widespread and abundant in many terrestrial and aquatic environments, and are thus outside extreme environments, accounting for up to ~10% of the prokaryotes.
J. Fröhlich-Nowoisky +12 more
doaj +1 more source
Light and temperature control the seasonal distribution of thaumarchaeota in the South Atlantic bight [PDF]
Abstract Mid-summer peaks in the abundance of Thaumarchaeota and nitrite concentration observed on the Georgia, USA, coast could result from in situ activity or advection of populations from another source. We collected data on the distribution of Thaumarchaeota, ammonia-oxidizing betaproteobacteria (AOB), Nitrospina, environmental ...
Qian Liu +7 more
openaire +2 more sources

