The Archaea form the third domain of life alongside the other two domains, the Bacteria and Eukarya. Most cultivated autotrophic archaea live under conditions resembling the conditions of early life ...
Miami University: B11 - Impact of the competition between Comammox and Ammonia-Oxidizing Archaea on associated Heterotrophic Community
B11 - Impact of the competition between Comammox and Ammonia-Oxidizing Archaea on associated Heterotrophic Community
Archaea (/ ɑːrˈkiːə / ⓘ ar-KEE-ə) is a domain of organisms. Traditionally, Archaea included only its prokaryotic members, but has since been found to be paraphyletic, as eukaryotes are known to have evolved from archaea.
Archaea, any of a group of single-celled prokaryotic organisms with distinct molecular characteristics separating them from bacteria and eukaryotes. The word archaea means ‘ancient’ or ‘primitive.’ In some classification systems, the archaea constitute one of three great domains of life.
Archaea represent a separate domain of life, next to bacteria and eukarya. As components of the human microbiome, archaea have been associated with various diseases, including periodontitis, endodontic infections, small intestinal bacterial overgrowth, and urogenital tract infections.
Today, archaea are recognized not only as a third domain of life, alongside bacteria and eukaryotes, but as essential players in ecosystems, evolution, and perhaps even our own origins. The discovery of archaea didn’t happen with a bang.
Archaea are the dark matter of the microbiome. Despite thriving in our guts, skin and respiratory tracts, these microbes are among the least understood organisms in and on the human body.