Results 71 to 80 of about 2,535 (185)

Discovery of Naturally Etched Fission Tracks and Alpha-Recoil Tracks in Submarine Glasses: Reevaluation of a Putative Biosignature for Earth and Mars

International Journal of Geophysics, 2016
Over the last two decades, conspicuously “biogenic-looking” corrosion microtextures have been found to occur globally within volcanic glass of the in situ oceanic crust, ophiolites, and greenstone belts dating back to ~3.5 Ga.
Jason E. French, David F. Blake
doaj   +1 more source

Microbial iron cycling in acidic geothermal springs of Yellowstone National Park: Integrating molecular surveys, geochemical processes and isolation of novel Fe-active microorganisms

Frontiers in Microbiology, 2012
Geochemical, molecular, and physiological analyses of microbial isolates were combined to study the geomicrobiology of acidic iron oxide mats in Yellowstone National Park (YNP).
Mark A Kozubal, Richard E Macur, Zack J Jay, Jake P Beam, Stephanie A Malfatti, Susannah Green Tringe, Benjamin D Kocar, Thomas eBorch, William P. Inskeep   +8 more
doaj   +1 more source

Nothing special in the specialist? Draft genome sequence of Cryomyces antarcticus, the most extremophilic fungus from Antarctica.

PLoS ONE, 2014
The draft genome of the Antarctic endemic fungus Cryomyces antarcticus is presented. This rock inhabiting, microcolonial fungus is extremely stress tolerant and it is a model organism for exobiology and studies on stress resistance in Eukaryots.
Katja Sterflinger, Ksenija Lopandic, Ram Vinay Pandey, Barbara Blasi, Albert Kriegner   +4 more
doaj   +1 more source

Editorial: Presentations at the 4th Workshop of the German Astrobiological Society (DAbG) on Astrobiology, 26–27 September 2019, Vienna, Austria

Frontiers in Astronomy and Space Sciences, 2021
Tetyana Milojevic, Rosa De La Torre Noetzel, Oliver Strbak, Dirk Schulze-Makuch, Dirk Schulze-Makuch, Dirk Schulze-Makuch   +5 more
doaj   +1 more source

Lipid biomarkers reveal dominance of aerobic methanotrophy in a continental serpentinizing system

Frontiers in Microbiology
Sources and sinks of methane within an advanced serpentinization-influenced system were investigated at the Coast Range Ophiolite Microbial Observatory (CROMO) in Lower Lake, California. Subsurface water-rock reactions at CROMO contribute to unique, high
Cybele R. Collins, Mary N. Parenteau, Linda L. Jahnke, Michael D. Kubo, Serena Moseman-Valtierra, Kyle Young, Dawn Cardace   +6 more
doaj   +1 more source

First record of multicellular filamentous benthic bacteria from freshwater lagoons in central Chile

Gayana
Observations on “macrobacteria” inhabiting the reduced bottoms of two freshwater lagoons in central Chile are here presented. The new finding of morphologically diverse, colorless multicellular filamentous bacteria expands their known presence into ...
Felipe Durán-Garcés, Carola Espinoza, Víctor A. Gallardo   +2 more
doaj  

The Computational Boundary of a “Self”: Developmental Bioelectricity Drives Multicellularity and Scale-Free Cognition

Frontiers in Psychology, 2019
All epistemic agents physically consist of parts that must somehow comprise an integrated cognitive self. Biological individuals consist of subunits (organs, cells, and molecular networks) that are themselves complex and competent in their own native ...
Michael Levin, Michael Levin
doaj   +1 more source

Exobiological prospecting [PDF]

Astronomy & Geophysics, 2000
Newton, Emma, Edwards, Howell G.M., Wynn-Williams, David, Hiscox, Julian A.   +3 more
openaire   +2 more sources

Heterogeneity of rock-hosted microbial communities in a serpentinizing aquifer of the Coast Range Ophiolite

Frontiers in Microbiology
The movement of groundwater through fractured bedrock provides favorable conditions for subsurface microbial life, characterized by constrained flow pathways and distinctive local environmental conditions.
Katrina I. Twing, Katrina I. Twing, Katrina I. Twing, William J. Brazelton, Tom M. McCollom, Florence Schubotz, H. Lizethe Pendleton, Rachel L. Harris, Annemarie R. Brown, Seth M. Richins, Michael D. Y. Kubo, Michael D. Y. Kubo, Tori M. Hoehler, Dawn Cardace, Matthew O. Schrenk   +14 more
doaj   +1 more source

Author Correction: Unveiling metabolic pathways involved in the extreme desiccation tolerance of an Atacama cyanobacterium. [PDF]

Sci Rep, 2023
Moore RA, Azua-Bustos A, González-Silva C, Carr CE.   +3 more
europepmc   +1 more source