Scientists say they've identified a potential living relative of the ancient microbe that gave rise to the 'powerhouse of the cell.'
More than a billion years ago, one simple cell ended up trapped inside another and never left, and its descendants went on to become mitochondria, the so-called powerhouses of cells.
In the new study, published Wednesday in the journal Science Advances, researchers focused on genetic traits that enable bacteria to perform certain functions that are essential to protomitochondria, like making fats for mitochondrial membranes.
Bacteria in the order Iodidimonadales met the greatest number of these genetic criteria, leading the researchers to believe that these bacteria could be closely related to protomitochondria. These bacteria live in a variety of places, including freshwater and ocean geothermal springs, an extreme environment similar to some found in Earth's oceans nearly 2 billion years ago.
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