"Asgardians," a single lineage of archaea, may be the starting point of it all, according to a study published in the journal Nature. After investigating the genomes of hundreds of archaeal microbes, ...

Eukaryotes drastically differ from archaea and bacteria (collectively, prokaryotes) by the complex organization of eukaryotic cells. The signature features of this organizational complexity include ...

Nitrogen is an essential component of all living cells. Its most reduced state, ammonia (here representative for NH 3 and NH 4 + in equilibrium), is one of the most common nitrogen sources assimilated ...