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A microbial consortium couples anaerobic methane oxidation to denitrification
TLDR
It is shown that the direct, anaerobic oxidation of methane coupled to denitrification of nitrate is possible and that the reaction presented here may make a substantial contribution to biological methane and nitrogen cycles. Expand
Candidatus "Scalindua brodae", sp. nov., Candidatus "Scalindua wagneri", sp. nov., two new species of anaerobic ammonium oxidizing bacteria.
TLDR
A new genus and species of anaerobic ammonium oxidizing planctomycetes, discovered in a wastewater treatment plant treating landfill leachate in Pitsea, UK, are described, making this genus the most widespread of all anammox bacteria described so far. Expand
13,16-Dimethyl Octacosanedioic Acid (iso-Diabolic Acid), a Common Membrane-Spanning Lipid of Acidobacteria Subdivisions 1 and 3
TLDR
Upon both acid and base hydrolyses of total cell material, the uncommon membrane-spanning lipid 13,16-dimethyl octacosanedioic acid (iso-diabolic acid) was released in substantial amounts (22 to 43% of the total fatty acids) from all of the acidobacteria studied. Expand
Enrichment and Characterization of an Autotrophic Ammonia-Oxidizing Archaeon of Mesophilic Crenarchaeal Group I.1a from an Agricultural Soil
TLDR
Kinetic respirometry assays showed that strain MY1's affinities for ammonia and oxygen were much higher than those of ammonia-oxidizing bacteria (AOB) and the yield of the greenhouse gas N2O in the strain My1 culture was lower but comparable to that of soil AOB. Expand
Methanotrophic symbionts provide carbon for photosynthesis in peat bogs
TLDR
The symbiosis between Sphagnum mosses and partly endophytic methanotrophic bacteria explains both the efficient recycling of methane and the high organic carbon burial in these wetland ecosystems. Expand
Effects of an oceanic anoxic event on the stable carbon isotopic composition of Early Toarcian carbon
The early Toarcian transgression is marked by the occurrence of organic carbon-rich shales in large parts of western Europe and in other parts of the world.
Intact Polar and Core Glycerol Dibiphytanyl Glycerol Tetraether Lipids of Group I.1a and I.1b Thaumarchaeota in Soil
TLDR
The core and intact polar lipid (IPL) GDGTs produced by three newly available thaumarchaeota isolated from grassland soil in Austria and enriched from agricultural soils in South Korea indicate that the hexose-phosphohexose head group bound to crenarchaeol is at present the only lipid that is detected in all thaum archaeota analyzed so far. Expand
Nitrification expanded: discovery, physiology and genomics of a nitrite-oxidizing bacterium from the phylum Chloroflexi
TLDR
The surprising discovery of a chemolithoautotrophic nitrite oxidizer that belongs to the widespread phylum Chloroflexi not previously known to contain any nitrifying organism significantly extends the known diversity of nitrify organisms and likely will have implications for future research on nitrification in natural and engineered ecosystems. Expand
Biosynthetic effects on the stable carbon isotopic compositions of algal lipids: implications for deciphering the carbon isotopic biomarker record
Thirteen species of algae covering an extensive range of classes were cultured and stable carbon isotopic compositions of their lipids were analysed in order to assess carbon isotopic fractionationExpand
Archaeal and Bacterial Glycerol Dialkyl Glycerol Tetraether Lipids in Hot Springs of Yellowstone National Park
TLDR
The cooccurrence of relatively abundant nonisoprenoid GDGTs thought to be derived from soil bacteria suggests a predominantly allochthonous source for crenarchaeol in these hot spring environments. Expand
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