group lack nuclei and membrane-bound organelles.
There are indications that archaeal viruses also use such thread-like structures on the cellular surface of archaea
to infect them.
Hilpert et al  found that archaea
were insensitive to many antibiotics that inhibit eubacteria and eukaryotes, such as those inhibiting the synthesis or cross-linkage of the peptide subunit of murein or those suppressing RNA synthesis.
That said, the broad distribution of the new lineage of microbes in Yellowstone's thermal features suggests similar habitats played an important role in the evolution of archaea
back in the day.
Di HJ, Cameron KC, Shen JP, Winefield CS, O'Callaghan M, Bowatte S (2009) Nitrification driven by bacteria and not archaea
in nitrogen rich grassland soils.
in the Degradation of Organics in Hypersaline Environments
Out of a total of about 2,000 superfamilies of folds, the team found one that was exclusive to archaea
and the viruses that infect archaea
, 29 shared only by bacteria and the viruses that infect them, and 37 that are exclusive to eukaryotes and their viruses.
These structures revel that eukaryotic and archaea
primase have unrelated polymerases fold, showing, however, a high conservation level and a three dimension arrangement of aspartate residues (Guilliam et al., 2015).
They found that Archaea
(pronounced ar-KEY-uh) were most abundant in subjects younger than 12 and older than 60.
That is, the biocides kill some types of bacteria, thus enabling other bacteria and archaea
to prosper--species that somehow find a way to survive in water that is, on average, four times saltier than the ocean, and under pressures that typically are hundreds of times higher than on the surface of the Earth.
"The three major domains of life are bacteria, archaea
and eukaryotes," Edgcomb explained.
These data sources - and many others - were compiled to create the inventory in the IU study, which pulls together 20,376 sampling efforts on bacteria, archaea
and microscopic fungi and 14,862 sampling efforts on communities of trees, birds and mammals.