Results 111 to 120 of about 15,760 (209)

Microbial diversity in deep-sea methane seep sediments presented by SSU rRNA gene tag sequencing [PDF]

open access: yes, 2012
http://www.godac.jamstec.go.jp/darwin/cruise/yokosuka/yk06-03/
ASHI, Juichiro   +13 more
core   +1 more source

Betaproteobacteria growth and nitrification rates during long-term natural dissolved organic matter decomposition experiments [PDF]

open access: yes, 2011
As a first attempt to relate net nitrification rates with bacterial community structure in the coastal embayment of the Ría de Vigo (NW Spain), a set of 6 long-term (lasting 53 to 74 d) dissolved organic matter decomposition experiments were conducted ...
Choma, Michael A.   +4 more
core   +1 more source

Different seasonality of pelagic and benthic Thaumarchaeota in the North Sea [PDF]

open access: yes, 2013
We have examined the spatial and seasonal distribution of Thaumarchaeota in the water column and sediment of the southern North Sea using the specific intact polar lipid (IPL) hexose-phosphohexose (HPH) crenarchaeol, as well as thaumarchaeotal 16S rRNA ...
E. C. Hopmans   +4 more
core   +2 more sources

Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils

open access: yesScientific Reports, 2018
Nitrous acid (HONO) is an important precursor of the hydroxyl radical (OH), the atmosphere´s primary oxidant. An unknown strong daytime source of HONO is required to explain measurements in ambient air.
M. Ermel   +13 more
doaj   +1 more source

Vertical segregation and phylogenetic characterization of ammonia-oxidizing bacteria and archaea in the sediment of a freshwater aquaculture pond

open access: yesFrontiers in Microbiology, 2016
Pond aquaculture is the major freshwater aquaculture method in China. Ammonia-oxidizing communities inhabiting pond sediments play an important role in controlling culture water quality.
Shimin eLu   +10 more
doaj   +1 more source

Ammonia-oxidising archaea living at low pH: Insights from comparative genomics [PDF]

open access: yes, 2017
Obligate acidophilic members of the thaumarchaeotal genus Candidatus Nitrosotalea play an important role in nitrification in acidic soils, but their evolutionary and physiological adaptations to acidic environments are still poorly understood, with only ...
Albertsen   +66 more
core   +3 more sources

Membraneless channels sieve cations in ammonia-oxidizing marine archaea

open access: yesNature
AbstractNitrosopumilus maritimus is an ammonia-oxidizing archaeon that is crucial to the global nitrogen cycle1,2. A critical step for nitrogen oxidation is the entrapment of ammonium ions from a dilute marine environment at the cell surface and their subsequent channelling to the cell membrane of N. maritimus.
von Kügelgen, A   +9 more
openaire   +4 more sources

Benthic Ammonia Oxidizers Differ in Community Structure and Biogeochemical Potential Across a Riverine Delta

open access: yesFrontiers in Microbiology, 2015
Nitrogen pollution in coastal zones is a widespread issue, particularly in ecosystems with urban or agricultural watersheds. California’s Sacramento-San Joaquin Delta, at the landward reaches of San Francisco Bay, is highly impacted by both agricultural ...
Julian eDamashek   +5 more
doaj   +1 more source

Phylogenetic congruence and ecological coherence in terrestrial Thaumarchaeota [PDF]

open access: yes, 2015
This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the ...
A Daebeler   +66 more
core   +3 more sources

Depth-related distribution of a key gene of the tetraether lipid biosynthetic pathway in marine Thaumarchaeota [PDF]

open access: yes, 2014
The distribution of isoprenoid glycerol dialkyl glycerol tetraethers (GDGT) lipids synthesized by Thaumarchaeota has been shown to be temperature-dependent in world oceans.
Schouten, S.   +2 more
core   +1 more source

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