A timeline of bacterial evolution showing the evolution of quinones used by bacteria for aerobic respiration before the great oxygenation event

Just published in PNAS: Our discovery of a novel type of quinone in Nitrospirota. We describe its biosynthetic pathway and show that the quinones used in aerobic respiration likely evolved before the great oxygenation event. Check out this article by the Harvard Gazette: https://news.harvard.edu/gazette/story/2025/02/hinting-at-answer-to-a-chicken-or-egg-question-on-evolution/

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Published by felixelling