Tag: Shewanella
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Multi-technique Characterization of Iron Reduction by an Antarctic Shewanella: An Analog System for Putative Martian Biosignature Identification
Introduction: Using terrestrial extremophiles to inform Martian biosignature detection Microbes from extreme Earth environments offer valuable testbeds for understanding biosignature production under conditions reminiscent of early Mars. Iron reduction is an ancient microbial metabolism that can influence mineralogy and volatile byproducts in ways that may be recognizable by current and future space instruments. In this…
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Multi-Technique Characterization of Iron Reduction by an Antarctic Shewanella: An Analog System for Martian Biosignature Identification
Introduction: Using Antarctic Extremophiles to Probe Martian Biosignatures Terrestrial microbes from extreme environments are invaluable for testing biosignature production under conditions that resemble ancient or present-day Mars. In particular, iron-reducing bacteria such as Shewanella species offer a window into metabolic processes that could have occurred in Martian lacustrine and subaqueous environments. This study investigates biosignature…