Results 101 to 110 of about 11,423 (215)

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

Valuing life detection missions

, 2018
Recent discoveries imply that Early Mars was habitable for life-as-we-know-it; that Enceladus might be habitable; and that many stars have Earth-sized exoplanets whose insolation favors surface liquid water. These exciting discoveries make it more likely
Gaidos, Eric, Kite, Edwin S., Onstott, Tullis C.   +2 more
core   +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  

Combined Genomic and Imaging Techniques Show Intense Arsenic Enrichment Caused by Detoxification in a Microbial Mat of the Dead Sea Shore

Geochemistry, Geophysics, Geosystems
Microbial mats and microbialites are essential tools for reconstructing early life and its environments. To better understand microbial trace element cycling, a microbial mat was collected from the sinkhole systems of the western shores of the Dead Sea ...
C. Thomas, M. Filella, D. Ionescu, S. Sorieul, C. G. L. Pollier, A. M. Oehlert, P. Zahajská, N. Gedulter, A. Agnon, D. Ferreira Sanchez, D. Ariztegui   +10 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

Metabolic Processes Preserved as Biosignatures in Iron-Oxidizing Microorganisms: Implications for Biosignature Detection on Mars [PDF]

Iron-oxidizing bacteria occupy a distinct environmental niche. These chemolithoautotrophic organisms require very little oxygen (when neutrophilic) or outcompete oxygen for access to Fe(II) (when acidophilic).
Emerson, David, Floyd, Melissa A. Merrill, Grubisic, Andrej, Williams, Amy J.   +3 more
core   +1 more source

Responses of ectomycorrhizal fungi to mineral substrates [PDF]

, 2003
Boreal forest soils are complex, heterogeneous growth substrates where organic and mineral components provide nutrient resources for soil organisms and plants. Mineral nutrients are cycled between living and dead organic components of the forest soil and
Rosling, Anna
core  

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

Response. Commentary. Evaluating the role of seagrass in cenozoic CO2 variations [PDF]

, 2017
Giovanni Gaglianone, Guillem Mateu-Vicens, Guillem Mateu-Vicens, Luis Pomar, Marco Brandano, Marco Brandano, Marco Cuffaro, Patrizio Petricca, Vincenzo Stagno   +8 more
core   +2 more sources

Editorial: Insights in Microbiological Chemistry and Geomicrobiology: 2021

Frontiers in Microbiology, 2022
Yiran Dong, Bradley M. Tebo
doaj   +1 more source