The detection of viable life is a key objective for both in situ astrobiological experiments on extraterrestrial bodies, and for planetary protection protocols on Earth following sample return.
Archaea
Draft Genome Sequence Of An Uncultured Archaeon From Antarctic Endolithic Communities
A draft genome sequence was assembled and annotated for an uncultured archaeon reconstructed from shotgun metagenomes obtained from Antarctic endoliths.
The Possible Crystallization Process in the Origin of Bacteria, Archaea, Viruses, and Mobile Elements
We propose a hypothesis for the simultaneous emergence of bacteria, archaea, viruses, and mobile elements by sequential and concrete biochemical pathways.
Novel Hot Spring Thermoproteota Support Vertical Inheritance of Ammonia Oxidation and Carbon Fixation in Nitrososphaeria
Aerobic ammonia oxidation is crucial to the nitrogen cycle and is only known to be performed by a small number of bacterial lineages [ammonia-oxidizing bacteria (AOB)] and a single lineage […]
Candidatus Sukunaarchaeum Mirabile Is A Novel Archaeon With An Unprecedentedly Small Genome
[biorxiv.org] Defining the minimal genetic requirements for cellular life remains a fundamental question in biology. Genomic exploration continually reveals novel microbial lineages, often exhibiting extreme genome reduction, particularly within symbiotic […]
Geobiology: Iron, Sulfur, Heat – And First Life
The very first cells obtained their energy from geochemical reactions. LMU researchers have now managed to recreate this ancient metabolic process in their laboratory.
Microbial Ecology Of The Deep Terrestrial Subsurface
The terrestrial subsurface hosts microbial communities that, collectively, are predicted to comprise as many microbial cells as global surface soils.
Novel Bacteria That Parasitize Archaea
AIST researchers, in collaboration with JAMSTEC, Hokkaido University and Tohoku University, have succeeded in cultivating an ultrasmall bacterial strain parasitizing archaea and classified the strain PMX.108T as new species and […]
Distinct Microbial Communities Within and On Seep Carbonates Support Long-term Anaerobic Oxidation of Methane and Novel pMMO Diversity
At methane seeps worldwide, syntrophic anaerobic methane-oxidizing archaea and sulfate-reducing bacteria (ANME-SRB) promote carbonate precipitation and rock formation, acting as methane and carbon sink.
Insight Into How Some Species Thrive In Dark, Oxygen-free Environments
Most life on Earth relies on the sun’s energy for survival, but what about organisms in the deep sea that live beyond the reach of its rays? A new study […]
