All articles tagged with #methanogens
Two new studies suggest that detecting signs of life on Saturn's moon Enceladus may be easier than previously thought. Research indicates that the moon's plumes naturally concentrate organic compounds and salts into ice grains, while Earth microbes can survive in simulated conditions of Enceladus's subsurface ocean.
New studies confirm that Earth-based methanogenic microbes can survive in laboratory conditions mimicking Saturn's moon Enceladus. The research also reveals that Enceladus's ice plumes naturally separate and concentrate oceanic compounds, making it easier for future spacecraft to detect potential biosignatures.
Researchers at Ludwig-Maximilians-Universität München demonstrated that methanogenic microbes from Japan’s Okinawa Trough survive in a laboratory brine mimicking Saturn’s moon Enceladus. The organisms adapted to extreme alkalinity and low carbon dioxide levels, suggesting the moon’s subsurface ocean may be habitable. A companion study indicates that ice plume fragmentation concentrates potential biosignatures, easing detection for future missions.
Researchers have identified ArmA, a new enzyme from the gut methanogen Methanobrevibacter smithii, which acts as the first specific hydrolase for archaeal peptidoglycan. By digesting this cell wall component, scientists revealed a previously unknown structure involving a novel sugar called N-acetylarmosamine. This discovery overturns a 50-year-old model of archaeal cell walls and provides a critical tool for studying methanogen biology, similar to how muramidases are used for bacteria.