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The Depositional Record, Volume 12, Issue 1, February 2026.Sediments, unlithified and lithified microbial mats in the Salar de Atacama, are formed by similar pathways involving coupled precipitation of authigenic Mg silicate and calcium carbonate. Differences in products reflect differences in the initial distribution of organic biomass.
Erica P. Suosaari +7 more
wiley +1 more source
A hot origin of dissimilatory sulfite reduction catalyzed by DsrAB in the Paleoarchean Era
mLife, Volume 5, Issue 1, Page 108-121, February 2026.Abstract Dissimilatory sulfite reduction (DSR) has been essential to microbial energy metabolism in the biogeochemical sulfur cycle since the Paleoarchean Era. However, due to the lack of an integrated assessment of geological record and genomic data, the evolutionary origin of DSR remains elusive in terms of time, habitat, and genetic basis.
Lingyun Tang +10 more
wiley +1 more source
MicrobiomeBackground Microorganisms in groundwater ecosystems exist either as planktonic cells or as attached communities on aquifer rock surfaces. Attached cells outnumber planktonic ones by at least three orders of magnitude, suggesting a critical role in ...
Alisha Sharma +4 more
doaj +1 more source
mBio, 2017 Long-term exposure to trace levels of arsenic (As) in shallow groundwater used for drinking and irrigation puts millions of people at risk of chronic disease.
Edwin T. Gnanaprakasam +7 more
doaj +1 more source
Sulfur microenvironments as hotspots for biogenic pyrite formation
Scientific ReportsPyrite (FeS2) is the end-product of bacterial sulfur cycling in reduced sedimentary environments. Sulfate-reducing bacteria (SRB) are mostly considered for biogenic pyrite formation due to their significant contribution to sulfide production at ambient ...
Fatih Sekerci +5 more
doaj +1 more source
The Impact of Host Rock Geochemistry on Bacterial Community Structure in Oligotrophic Cave Environments. [PDF]
International Journal of Speleology, 2007 Despite extremely starved conditions, caves contain surprisingly diverse microbial communities. Our research is geared toward understanding what ecosystems drivers are responsible for this high diversity. To asses the effect of rock fabric and mineralogy,
Hazel A. Barton +5 more
doaj
Environmental MicrobiomeBackground Although plastic pollution is increasing worldwide, very little is known about the microbial processes that take place once plastic debris is incorporated into the soil matrix.
Joana MacLean +4 more
doaj +1 more source
Microbially Mediated Ore-Forming Processes and Cell Mineralization
Frontiers in Microbiology, 2019 Sedimentary black shale-hosted manganese carbonate and oxide ores were studied by high-resolution in situ detailed optical and cathodoluminescence microscopy, Raman spectroscopy, and FTIR spectroscopy to determine microbial contribution in metallogenesis.
Márta Polgári +6 more
doaj +1 more source
Elementa: Science of the Anthropocene, 2017 Weathered crude oil sank to the seafloor following the 'Deepwater Horizon' disaster in 2010, removing this oil from further physical and photo-chemical degradation processes and leaving benthic processes as the mechanisms for altering and remediating ...
Beth N. Orcutt +8 more
doaj +1 more source
LandExtreme meteorological events and anthropogenic influences determine important variations in microbial community composition. To know the extent of these variations, it is necessary to delve deeper into the geogenic factors to be considered as a baseline.
Samuel Pelacani +4 more
doaj +1 more source