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#nitrogenase — Public Fediverse posts

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  1. Today, molybdenum is one of the most common trace elements in the ocean due to oxidative weathering of . But in the Archean the oceans were reducing, and molybdenum was scarce.

    Other nitrogenases evolved to use other transition elements, but Mo-nitrogenase was first, and best.

    Molybdenite enables the Earth's biosphere!

  2. is the primary host for the element molybdenum in the Earth's crust.

    Molybdenum is part of the most effective biological molecule for nitrogen fixation (Mo-nitrogenase), which converts atmospheric N2 to a bio-available form.

    The grey sphere is Mo; this complex molecule likely evolved more than 3.2 billion years ago.

  3. I may as well inaugurate my mastodon profile with my post on the crazy history behind #nitrogen N≡N — the wars fought ⛷️, poo mined 🐦 , and science pioneered 🔎 in the quest to sequester it from air to soil:

    keiran-rowell.github.io/nitrog

    #nitrogenfixation #nitrogenase #haber-bosch #guano