[Microbiome] Background: Iron, the most abundant redox-active metal in the Earth’s crust, is coupled to numerous biogeochemi- cal cycles. However, the mechanisms of iron oxidation and the organisms involved remain […]
biorxiv.org
Posted inBiophysics
Reversion To The Meta Body Form Of Life After Complete Cell Death In Pure Liquid Water
[biorxiv.org] The prevailing view holds that simpler animate beings predating the dawn of cellular life once existed, yet they have long since vanished from the present-day Earth. Our hypothesis posits […]
Posted inRadiation
AMMPER-2: A Spatially Explicit Agent-based Model Of Microbial Radiobiology With Redox Dye Simulation
[biorxiv.org] To reduce health risks for human space exploration, it is important to model the effects of deep-space radiation on biological systems.
Posted inGenomics, Proteomics, Bioinformatics
Compatible Comma-Free Codes and the Origin of the Genetic Code
[biorxiv.org] The genetic code is the rule that (apart from minor modifications [1, 2]) is used by all contemporary life on Earth to translate genes into proteins. It is summarized […]
Posted inFossils & Paleontology
Protocells Reproduce Morphological And Chemical Signatures Of Early Microfossils
[biorxiv.org] Identification of early microfossils relies on morphological and chemical criteria assumed to be unique to life, but whether abiotic microstructures can satisfy these criteria has not been rigorously tested.
Posted inMicrobiology & Virology
Controlled Near-space Exposure Induces Community Restructuring In An Ocean Water Microbiome
[biorxiv.org] Marine microbiomes may experience extreme environmental stress during atmospheric transport, yet how near-space conditions reshape natural microbial communities remains poorly understood.
Posted inExtremeophiles and Extreme Environments
Whole-Genome Metagenomics Insights Revealed a Uranium Bio-remediating Cross-Domain Microbiome in the Dhala Impact Structure, India
[biorxiv.org] Meteorite impact structures on earth represent unique terrestrial analogues of extreme planetary environments where fractured lithologies, hydrothermal alteration, elevated concentrations of radionuclides, and prolonged water-rock interactions create ecological niches […]
Posted inExploration Gear & Tech
Looking Inside Living Antarctic Cells For The First Time
[British Antarctic Survey] Cambridge engineers have built the first microscope to see inside living cells in sub-zero conditions, revealing secrets of Antarctic fish survival.
Posted inOrigin & Evolution of Life
Selection For Propagule Formation In Prebiotic Chemical Ecosystems
[biorxiv.org] Biological individuals on Earth today are cellular, but the simplest cells are too complex to have arisen spontaneously.
Posted inNomenclature, Systematics, Natural History
Viruses, Proviruses and Satellites from Asgard Archaea Enrichments Reveal Complex Microbial Interactions
[biorxiv.org] Asgard archaea are the closest known relatives of eukaryotes and are central to models of eukaryogenesis involving archaeal–bacterial symbiosis, yet the contribution of viruses remains unexplored.