And the best buffet of nitrogen comes from moss-loving bacteria.

而最棒的氮气大餐来自于喜苔类细菌。

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He proposes that for bacteria living in a dry environment, where molecules could not easily diffuse between colonies, airborne ammonia could serve as an important indicator of nitrogen sources.

他认为，对于身处干燥环境中的细菌来说，分子不易在菌落之间进行扩散，而空气中的氨就可以作为一重要的营养源的指示信息。

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Then anaerobic bacteria take that nitrate and turn it into harmless nitrogen gas.

最后厌氧菌将硝酸盐转化成无害的气体氮。

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Anammox bacteria transform ammonia to nitrogen in fewer steps than more common bacteria, and require much less oxygen, and therefore energy, to do so.

FORBES: Magazine Article

Bacteria evolved the necessary chemistry to "fix" nitrogen from the air, about two billion years ago.

BBC: Leaving our mark: Fossils of the future

Plants, bugs, trees, worms, bacteria and men are mostly carbon, hydrogen, nitrogen and oxygen.

NPR: Serenading Science In A New Rock Album