Results 21 to 30 of about 1,164 (160)

Phylogeography of Sulfate-Reducing Bacteria among Disturbed Sediments, Disclosed by Analysis of the Dissimilatory Sulfite Reductase Genes ( dsrAB ) [PDF]

open access: yesApplied and Environmental Microbiology, 2005
ABSTRACT Sediment samples were collected worldwide from 16 locations on four continents (in New York, California, New Jersey, Virginia, Puerto Rico, Venezuela, Italy, Latvia, and South Korea) to assess the extent of the diversity and the distribution patterns of sulfate-reducing bacteria (SRB) in contaminated sediments.
J R, Pérez-Jiménez, L J, Kerkhof
openaire   +2 more sources

Organic sulfur from source to sink in low‐sulfate Lake Superior

open access: yesLimnology and Oceanography, Volume 68, Issue 12, Page 2716-2732, December 2023., 2023
Abstract Organic sulfur plays a crucial role in the biogeochemistry of aquatic sediments, especially in low sulfate (< 500 μM) environments like freshwater lakes and the Earth's early oceans. To better understand organic sulfur cycling in these systems, we followed organic sulfur in the sulfate‐poor (< 40 μM) iron‐rich (30–80 μM) sediments of Lake ...
Alexandra A. Phillips   +10 more
wiley   +1 more source

Validation of key sponge symbiont pathways using genome‐centric metatranscriptomics

open access: yesEnvironmental Microbiology, Volume 25, Issue 12, Page 3207-3224, December 2023., 2023
The sponge microbiome is hypothesised to carry out a range of metabolic functions that improve the fitness of the host. Our study tested whether these metabolic functions were active across three different sponge species by analysing the gene‐expression of their symbionts.
Paul A. O'Brien   +10 more
wiley   +1 more source

Sulfidogenic Microbial Communities of the Uzen High-Temperature Oil Field in Kazakhstan

open access: yesMicroorganisms, 2021
Application of seawater for secondary oil recovery stimulates the development of sulfidogenic bacteria in the oil field leading to microbially influenced corrosion of steel equipment, oil souring, and environmental issues.
Diyana S. Sokolova   +11 more
doaj   +1 more source

Biogeochemical characterization of four depleted gas reservoirs for conversion into underground hydrogen storage

open access: yesEnvironmental Microbiology, Volume 25, Issue 12, Page 3683-3702, December 2023., 2023
Depleted gas reservoirs are a promising underground hydrogen storage (UHS) option. This study is the first microbiological characterization of four Italian depleted reservoirs in the perspective of UHS. Our approach integrates hydrochemical analysis and metagenomic characterization, based on 16S rRNA and functional genes, with predictive functional ...
Ilaria Bassani   +8 more
wiley   +1 more source

Detection of dsrAB operon expression in Desulfotalea psychrophila cells subjected to simulated Martian conditions of temperature and regolith's sulphate minerals composition

open access: yesInternational Journal of Astrobiology, 2023
AbstractDiscoveries of transient liquid water in the Martian polar caps and the presence of liquid lakes and subsurface oceans in icy satellites have increased the interest of scientists in the capabilities of terrestrial extremophiles to grow and remain metabolically active in these extreme environments.
Sergio Mosquera   +2 more
openaire   +2 more sources

A metagenomic view of novel microbial and metabolic diversity found within the deep terrestrial biosphere at DeMMO: A microbial observatory in South Dakota, USA

open access: yesEnvironmental Microbiology, Volume 25, Issue 12, Page 3719-3737, December 2023., 2023
This study presents a large geochemically informed genomic dataset from a deep mine environment. We assembled hundreds of metagenome‐derived genomes, many from uncultivated groups, gaining insight into potential microbial metabolisms that in subsurface fluids and how these microbes interface with their biogeochemical environments at these extremes ...
Lily Momper   +2 more
wiley   +1 more source

Sulfate-reducing microorganisms in wetlands – fameless actors in carbon cycling and climate change

open access: yesFrontiers in Microbiology, 2012
Freshwater wetlands are a major source of the greenhouse gas methane but at the same time can function as carbon sink. Their response to global warming and environmental pollution is one of the largest unknowns in the upcoming decades to centuries.
Michael ePester   +4 more
doaj   +1 more source

Metagenomic and metatranscriptomic insights into sulfate-reducing bacteria in a revegetated acidic mine wasteland

open access: yesnpj Biofilms and Microbiomes, 2022
The widespread occurrence of sulfate-reducing microorganisms (SRMs) in temporarily oxic/hypoxic aquatic environments indicates an intriguing possibility that SRMs can prevail in constantly oxic/hypoxic terrestrial sulfate-rich environments.
Jin-tian Li   +11 more
doaj   +1 more source

Structural evolution of the ancient enzyme, dissimilatory sulfite reductase

open access: yes, 2022
International audienceAbstract Dissimilatory sulfite reductase is an ancient enzyme that has linked the global sulfur and carbon biogeochemical cycles since at least 3.47 Gya.
Gurla V. T. Swapna   +13 more
core   +1 more source

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