Results 21 to 30 of about 11,347 (200)
Iron mineral dissolution releases iron and associated organic carbon during permafrost thaw
Nature Communications, 2020 Iron minerals trap carbon in permafrost, preventing microbial degradation and release to the atmosphere as CO2, but the stability of this carbon as permafrost thaws is unclear.
Monique S. Patzner +10 more
doaj +1 more source
Microbial turnover times in the deep seabed studied by amino acid racemization modelling
Scientific Reports, 2017 The study of active microbial populations in deep, energy-limited marine sediments has extended our knowledge of the limits of life on Earth. Typically, microbial activity in the deep biosphere is calculated by transport-reaction modelling of pore water ...
Stefan Braun +8 more
doaj +1 more source
mBio, 2017 This study demonstrates that the deltaproteobacterium Desulfurivibrio alkaliphilus can grow chemolithotrophically by coupling sulfide oxidation to the dissimilatory reduction of nitrate and nitrite to ammonium.
Casper Thorup +4 more
doaj +1 more source
Frontiers in Microbiology, 2020 Glacier forefields provide a unique chronosequence to assess microbial or plant colonization and ecological succession on previously uncolonized substrates.
Isaac Garrido-Benavent +8 more
doaj +1 more source
Geologica Acta, 2022 Microbial endolithic communities are ubiquitous in many deserts around the globe. They have been found in many different lithologies, including quartz, plagioclase and calcite.
Julian Andreas Corzo-Acosta +1 more
doaj +1 more source
Arguments for a "U.S. Kamioka": SNOLab and its Implications for North American Underground Science Planning [PDF]
, 2006 We argue for a cost-effective, long-term North American underground science strategy based on partnership with Canada and initial construction of a modest U.S. Stage I laboratory designed to complement SNOLab.
Aalseth +22 more
core +1 more source
On the pathways feeding the H₂ production process in nutrient-replete, hypoxic conditions : commentary on the article 'Low oxygen levels contribute to improve photohydrogen production in mixotrophic non-stressed Chlamydomonas cultures', by Jurado-Oller et al., Biotechnology for Biofuels, published September 7, 2015; 8:149 [PDF]
, 2017 Background: Under low O-2 concentration ( hypoxia) and low light, Chlamydomonas cells can produce H-2 gas in nutrient-replete conditions. This process is hindered by the presence of O-2, which inactivates the [FeFe]-hydrogenase enzyme responsible for H-2
Scoma, Alberto, Toth, Szilvia Z
core +2 more sources
Microbiology Spectrum, 2022 The Permian Basin is the highest producing oil and gas reservoir in the United States. Hydrocarbon resources in this region are often accessed by unconventional extraction methods, including horizontal drilling and hydraulic fracturing.
Kara Tinker +4 more
doaj +1 more source
N2O formation by nitrite-induced (chemo)denitrification in coastal marine sediment
Scientific Reports, 2019 Nitrous oxide (N2O) is a potent greenhouse gas that also contributes to stratospheric ozone depletion. Besides microbial denitrification, abiotic nitrite reduction by Fe(II) (chemodenitrification) has the potential to be an important source of N2O. Here,
Julia M. Otte +5 more
doaj +1 more source
Frontiers in Microbiology, 2023 Serpentinization reactions produce highly reduced waters that have hyperalkaline pH and that can have high concentrations of H2 and CH4. Putatively autotrophic methanogenic archaea have been identified in the subsurface waters of the Samail Ophiolite ...
Patrick H. Thieringer +3 more
doaj +1 more source