Desulfobacterota Archives

Maximum BLASTx identity (%) of key Cdh/Coo and CoxL enzymes across eight global locations. This heatmap illustrates the sequence conservation of each gene in different environments, ranging from highly conserved (bright yellow) to poorly conserved (dark blue).

Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Origin & Evolution of Life, Status Report

Carbon Monoxide Dehydrogenase-encoding Microorganisms In Volcanic Astrobiological Analogues: An Enzyme System To Investigate The Evolution Of Life

by Keith CowingApril 5, 2026April 5, 2026

Volcanic environments provide analogues for studying the origin of life and its persistence under extreme conditions on early Earth and other planetary bodies. Pioneering microbes that oxidise inorganic gases, such […]

Ultrastructures of the microfossil Qingjiangonema cambria. (a, b) SEM images of Q. cambria on the macrofossil in Fig. 2a, indicating focused ion beam (FIB) milling positions of longitudinal and cross sections, respectively. (c) Scanning transmission electron microscope-high angle annular dark field (STEM-HAADF) image of the ultrathin cross section in (b), showing microcrystals tightly packed within a thin envelope. (d) STEM-HAADF image of the ultrathin longitudinal section in (a), showing that neighboring cells are disconnected with intercellular boundaries, note that microcrystals are much smaller in the smaller cell than those in the larger neighboring cells. (e) Close-up of the boxed area in (c), showing the ultra-thin, multilayered film comparable to the typical cell envelope of Gram-negative bacteria, which comprises a cytoplasmic membrane (CM), a periplasmic space (PS) and an outer membrane (OM). -- Science Bulletin

Biophysics, Biosignatures & Paleobiology, Microbiology & Virology, Origin & Evolution of Life, Press Release

Microfossil Qingjiangonema Sheds Light Evolution Of Sulfate-reducing Bacteria In Response To Oxygenation

by Keith CowingJune 12, 2024June 12, 2024

Microbial sulfate reduction dating back to the Paleoarchean plays a crucial role in driving global carbon and sulfur cycles in ancient and modern Earth.

Desulfobacterota

Carbon Monoxide Dehydrogenase-encoding Microorganisms In Volcanic Astrobiological Analogues: An Enzyme System To Investigate The Evolution Of Life

Microfossil Qingjiangonema Sheds Light Evolution Of Sulfate-reducing Bacteria In Response To Oxygenation

Alta-X Drone Tests Future Astrobiology / Astrogeology Droid Technology

Landforms In Ares Vallis Carved Out By Ancient Water Flow

Evolution of Stellar Activity and Habitable Zone (EATEN): III. X-ray Activity of Dwarfs in Open Clusters and Field Stars

Radial Velocity Detection Of The TRAPPIST-1 Planetary System With SPIRou And NIRPS

Structure Of An RNA polymerase Ribozyme Replication Complex