Strange microbe “breathes” nitrates using a mitochondria-like symbiont

“Deep in Switzerland’s Lake Zug swims a microorganism that has evolved a strange way to “breathe.” A team of researchers discovered a novel partnership between a single-celled eukaryote—an organism with a clearly defined nucleus holding its genome—and a bacteria that generates energy for its host. But instead of using oxygen to do so, it uses nitrate.”

https://arstechnica.com/science/2021/03/nitrate-breathing-microorganism-offers-glimpse-into-evolutions-past/

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