Results 21 to 30 of about 184,111 (289)
Cell-specific rates of sulfate reduction and fermentation in the sub-seafloor biosphere
Frontiers in Microbiology, 2023 Microorganisms in subsurface sediments live from recalcitrant organic matter deposited thousands or millions of years ago. Their catabolic activities are low, but the deep biosphere is of global importance due to its volume.
Marion Jaussi +6 more
doaj +1 more source
Patterns of sulfur isotope fractionation during microbial sulfate reduction [PDF]
Geobiology, 2015 AbstractStudies of microbial sulfate reduction have suggested that the magnitude of sulfur isotope fractionation varies with sulfate concentration. Small apparent sulfur isotope fractionations preserved in Archean rocks have been interpreted as suggesting Archean sulfate concentrations of <200 μm, while larger fractionations thereafter have been ...
Bradley, A. S. +5 more
openaire +3 more sources
Improving the performance of bioelectrochemical sulfate removal by applying flow mode
Microbial Biotechnology, 2023 Treatment of wastewater contaminated with high sulfate concentrations is an environmental imperative lacking a sustainable and environmental friendly technological solution.
Shixiang Dai +5 more
doaj +1 more source
Broad-scale evidence that pH influences the balance between microbial iron and sulfate reduction [PDF]
, 2015 Understanding basic controls on aquifer microbiology is essential to managing water resources and predicting impacts of future environmental change.
Haller, Ben R. +2 more
core +1 more source
Microbial sulfate reduction and organic sulfur formation in sinking marine particles [PDF]
Science, 2021 Where they can't breathe Climate warming is causing the expansion of marine oxygen-deficient zones, which are regions in which dissolved oxygen concentrations are so low that many marine animals cannot survive. This phenomenon also might affect the global cycles of carbon, sulfur, nitrogen, and trace metals in the
M. R. Raven, R. G. Keil, S. M. Webb
openaire +2 more sources
Frontiers in Microbiology, 2013 Microbial sulfate reduction is a dominant process of organic matter mineralization in sulfate-rich anoxic environments at neutral pH. Recent studies have demonstrated sulfate reduction in low pH environments, but investigations on the microbial activity ...
Elisa eBayraktarov +7 more
doaj +1 more source
A comprehensive sulfur and oxygen isotope study of sulfur cycling in a shallow, hyper-euxinic meromictic lake [PDF]
, 2016 Mahoney Lake is a permanently anoxic and sulfidic (euxinic) lake that has a dense plate of purple sulfur bacteria positioned at mid-water depth (∼7 m) where free sulfide intercepts the photic zone. We analyzed the isotopic composition of sulfate (δ34SSO4
Gilhooly, William P., III +2 more
core +1 more source
Frontiers in Microbiology, 2015 Hydrothermal vents are thermally and geochemically dynamic habitats, and the organisms therein are subject to steep gradients in temperature and chemistry. To date, the influence of these environmental dynamics on microbial sulfate reduction has not been
Kiana Laieikawai Frank +6 more
doaj +1 more source
Oxygen respiration and polysaccharide degradation by a sulfate-reducing acidobacterium
Nature Communications, 2023 Sulfate-reducing microorganisms represent a globally important link between the sulfur and carbon cycles. Recent metagenomic surveys expanded the diversity of microorganisms putatively involved in sulfate reduction underscoring our incomplete ...
Stefan Dyksma, Michael Pester
doaj +1 more source
INHIBITION OF MICROBIAL SULFATE REDUCTION BY MOLYBDATE
Brazilian Journal of Petroleum and Gas, 2015 Hydrogen sulfide generation in oil production is a constant cause of concern. In several cases this phenomenon occurs due to the action of sulfate-reducing bacteria. Various methods, including biocides and nitrate addition, have been used to control the activity of these microorganisms, but they are expensive and have side effects.
E. B. de Jesus +3 more
openaire +2 more sources