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MICROBIOLOGY

Microbial unknowns at the saline limits for life

The pools of the geothermal Dallol Dome and surrounding area (in the Danakil Depression of Ethiopia) are an extreme example of complex brines: many lack evidence of life, but others are habitats for archaea and other extremophiles, prompting questions about the biophysical limits for microbial function.

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Fig. 1: Brines that exhibit multiple extremes.

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Hallsworth, J.E. Microbial unknowns at the saline limits for life. Nat Ecol Evol 3, 1503–1504 (2019). https://doi.org/10.1038/s41559-019-1021-0

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