Halomonas meridiana
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Enceladus, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Microbiology & Virology, Status Report, Water/Hycean Worlds & Oceanography

Spatiotemporal Impacts of Enceladus- and Earth-relevant Ammonia Gas On Cultivation of Extremophile Halomonas meridiana

by Keith Cowing

One underexplored aspect of microbial growth is the impact of toxic gases transported through the atmosphere. Ammonia is a gas that can supply essential nitrogen but also exert cellular toxicity.

Posted inBiochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Habitable Zones, Icy Worlds, Status Report, Water/Hycean Worlds & Oceanography

Ammonia Sets Limit To Life And Alters Physiology Independently Of pH In Halomonas Meridiana

by Keith Cowing

The subsurface oceans of icy moons, expected to retain appreciable concentrations of ammonia, are of significant interest to astrobiology. On Earth, ammonia is released in large quantities, primarily through anthropogenic […]

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