Results 131 to 140 of about 52,993 (223)
Hydrologic wetland restoration in the Prairie Pothole Region is a common management practice to facilitate habitat and ecosystem recovery after degradation or drainage. Little is known about the recovery of sediment microbial communities relative to other organisms, such as vegetation, fish, and macroinvertebrates, even though they are critical for ...
Christine M. Cornish +2 more
wiley +1 more source
Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups
ABSTRACT Rationale Application of clumped isotope palaeothermometry to speleothems (carbonate cave deposits, e.g., stalagmites and flowstones) has been restricted largely to subaqueous samples because of kinetic fractionation processes that occur during subaerial speleothem formation, which lead to erroneously high inferred temperatures.
Stuart Umbo +11 more
wiley +1 more source
What are Archaea up to in marine sediments?
Published: http://www.biogeosciences.net/11/201/2014/bg-11-201-2014.html Metabolism and activity of Thaumarchaeota in marine sediments is highly debated. We investigated the incorporation of 13C labeled substrates (HCO3- and organic) into specific thaumarchaeal lipids in sediment core incubations.
openaire +1 more source
Bacteria as Passive Passengers in the Equatorial Pacific Biological Carbon Pump
Abstract Bacteria are important agents modulating the efficiency of the ocean's biological carbon pump (BCP). The long‐standing view considers bacteria as degraders of sinking particulate organic carbon (POC), yet underappreciates their contribution to carbon export.
Jinqiang Guo +6 more
wiley +1 more source
Host-linked soil viral ecology along a permafrost thaw gradient [PDF]
Climate change threatens to release abundant carbon that is sequestered at high latitudes, but the constraints on microbial metabolisms that mediate the release of methane and carbon dioxide are poorly understood1,2,3,4,5,6,7.
Bolduc, Benjamin +22 more
core +1 more source
The microbial retinal protein KR2 (Krokinobacter eikastus) is a light‐driven outward Na+ pump, which is coupled to the photocycle of the chromophore. Using time‐resolved continuous‐wave pump‐probe resonance Raman spectroscopy, the operational switches for ion transport are identified, which are the transitions to a specific Schiff base sub‐state and ...
Anna Lena Schäfer +5 more
wiley +1 more source
We introduce the Global rRNA Universal Metabarcoding Plankton database (GRUMP), which consists of 1194 samples that were collected from 2003–2020 and cover extensive latitudinal and longitudinal transects, as well as depth profiles in all major ocean ...
Jesse McNichol +25 more
doaj +1 more source
Highlights A collaborative biosensing system is developed for amplification-free RNA/miRNA detection by integrating Type III CRISPR-Cas10 system with a graphene field-effect transistor (GFET).
Mingyuan Sun +13 more
doaj +1 more source
Microorganisms dominate marine environments in the polar oceans and are known to harbor greater diversity and abundance than was once thought, and yet, little is known about their biogeographic distribution patterns in marine sediments at a broad spatial
Jianxing Sun +4 more
doaj +1 more source
Potential for aerobic hydrocarbon oxidation in archaea
Over the last decade, there have been significant advances in our understanding of anaerobic hydrocarbon oxidation in archaea. However, the ability to oxidise hydrocarbons aerobically has been described in bacteria but not yet in archaea.
Andy O. Leu +3 more
doaj +1 more source

