Results 51 to 60 of about 3,923 (192)

Genomic characterization and radiation tolerance of Naganishia kalamii sp. nov. and Cystobasidium onofrii sp. nov. from Mars 2020 mission assembly facilities

IMA Fungus, 2023
During the construction and assembly of the Mars 2020 mission components at two different NASA cleanrooms, several fungal strains were isolated. Based on their colony morphology, two strains that showed yeast-like appearance were further characterized ...
Patrick Leo, Marcus de Melo Texeira, Atul M. Chander, Nitin K. Singh, Anna C. Simpson, Andrey Yurkov, Fathi Karouia, Jason E. Stajich, Christopher E. Mason, Kasthuri Venkateswaran   +9 more
doaj   +1 more source

Comparative Dynamics Enables Discovery of Embedded Bacterial Ferredoxin Domains in Large Redox Enzymes

Proteins: Structure, Function, and Bioinformatics, Volume 93, Issue 11, Page 1973-1987, November 2025.
ABSTRACT Bacterial ferredoxins are small iron–sulfur binding proteins that function as soluble electron shuttles between redox enzymes in the cell. Their simple 2×(β–α–β) fold, central metabolic function, and ubiquity across all kingdoms of life have led to the proposal that ferredoxins were likely among the earliest proteins.
Jan A. Siess, Vikas Nanda
wiley   +1 more source

Nanoscale investigations of complex microbial interactions with terrestrial and extraterrestrial minerals using STEM based approach: implications for life on Earth and beyond

Frontiers in Environmental Chemistry
Our recent investigations using scanning transmission electron microscopy (STEM) based approach address tungsten-microbial interactions as a microbial strategy to withstand harsh environments, microbial metal extraction capacities for bioleaching ...
Tetyana Milojevic, Mihaela Albu, Ilse Letofsky-Papst, Artem Mashchenko   +3 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

A New Family of Planets ? "Ocean Planets"

, 2003
A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: "Ocean-Planets". We present the possible formation, composition and internal models of these putative planets, including that of their ocean, as well
Brachet, F., Despois, D., Guillot, T., Labeque, A., Lammer, H., Leger, A., Ollivier, M., Selsis, F., Sotin, C., Valette, C.   +9 more
core   +2 more sources

Physicochemical Constraints on the Abiotic Polymerization of Nucleotides Into RNA

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 11, November 2025.
Abstract One of the key steps in the origin of life is the polymerization of nucleotides into nucleic acids like RNA. We have quantified the energetic impact of temperature, pressure, and composition on the polymerization of nucleotides into RNA using the Gibbs function. These Gibbs energies have been used to calculate the probability that a nucleotide
D. E. LaRowe, J. M. Dick
wiley   +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

Biomimicry of Magnetotactic Bacteria Via Self‐Organized Soft Matter Dispersions

Advanced Physics Research, Volume 4, Issue 10, October 2025.
Self‐assembled ferrofluid droplet chain coated with a lipid bilayer, mimicking the structural, functional and dynamic properties of magnetotactic bacteria. The controlled magnetic responsiveness suggests applicational potential of these soft matter systems in biosensing, targeted delivery, and magnetic‐responsive materials.
Varun Chandrasekar, Tianhao Ge, Ke Ding, Yingyu Wang, Jian Ren Lu, Ingo Dierking   +5 more
wiley   +1 more source

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

Publications of the exobiology program for 1979: A special bibliography [PDF]

A list of 1973 publications resulting from research pursued in exobiology is presented.
Devincenzi, D. L., Pleasant, L. G.
core   +1 more source