Results 71 to 80 of about 2,740 (173)

Metatranscriptomics of microbial biofilm succession on HDPE foil: uncovering plastic-degrading potential in soil communities

Environmental Microbiome
Background 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, Alexander Bartholomäus, Roberts Blukis, Susanne Liebner, Dirk Wagner   +4 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, Nicholas M. Taylor, Michael P. Kreate, Austin C. Springer, Stuart A. Oehrle, Janet L. Bertog   +5 more
doaj  

Sulfur microenvironments as hotspots for biogenic pyrite formation

Scientific Reports
Pyrite (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, Stefan Fischer, Prachi Joshi, Stefan Peiffer, Andreas Kappler, Muammar Mansor   +5 more
doaj   +1 more source

Geodiversity as a Driver of Soil Microbial Community Diversity and Adaptation in a Mediterranean Landscape

Land
Extreme 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, Maria Teresa Ceccherini, Francesco Barbadori, Sandro Moretti, Simone Tommasini   +4 more
doaj   +1 more source

Unveiling plasmid diversity and functionality in pristine groundwater

Environmental Microbiome
Background Plasmids are key in creating a dynamic reservoir of genetic diversity, yet their impact on Earth’s continental subsurface—an important microbial reservoir—remains unresolved. We analyzed 32 metagenomic samples from six groundwater wells within
Olga María Pérez-Carrascal, Akbar Adjie Pratama, Matthew B. Sullivan, Kirsten Küsel   +3 more
doaj   +1 more source

Iron oxide and calcite associated with Leptothrix sp. biofilms within an estavelle in the upper Floridan aquifer

International Journal of Speleology, 2011
In Thornton’s Cave, an estavelle in west-central Florida, SEM, EDS, and XRD data reveal biofilms that are predominantly comprisedof FeOOH-encrusted hollow sheaths that are overgrown and intercalated with calcite.
Florea Lee J., Noe-Stinson Chasity L., Brewer Josh, Fowler Rick, Kearns Joe B., Greco Anthony M.   +5 more
doaj  

Genome streamlining in Parcubacteria transitioning from soil to groundwater

Environmental Microbiome
Background To better understand the influence of habitat on the genetic content of bacteria, with a focus on members of Candidate Phyla Radiation (CPR) bacteria, we studied the effects of transitioning from soil via seepage waters to groundwater on ...
Narendrakumar M. Chaudhari, Olga M. Pérez-Carrascal, Will A. Overholt, Kai U. Totsche, Kirsten Küsel   +4 more
doaj   +1 more source

Recent origin of iron oxidation in extant microbial groups and low clade fidelity of iron metabolisms

Applied and Environmental Microbiology
Reduced iron was abundant in Earth’s surface environments before their oxygenation, so iron oxidation could have been a common metabolism on the early Earth.
Erik Tamre, Gregory Fournier
doaj   +1 more source

Editorial: Deep Carbon in Earth: Early Career Scientist Contributions to the Deep Carbon Observatory

Frontiers in Earth Science, 2017
Donato Giovannelli, Donato Giovannelli, Donato Giovannelli, Donato Giovannelli, Benjamin A. Black, Alysia D. Cox, Alysia D. Cox, Cody S. Sheik, Cody S. Sheik   +8 more
doaj   +1 more source

Editorial: The rocky biosphere: New insights from microbiomes at rock-water interfaces and their interactions with minerals

Frontiers in Microbiology, 2022
Yohey Suzuki, Elizabeth Trembath-Reichert, Henrik Drake   +2 more
doaj   +1 more source