One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.

Annotation

in taxonomy, one of the 3 domains of life along with BACTERIA & Eucarya

v taxonomii jedna ze tří domén života vedle bakterií a eukaryot

DUI

D001105 MeSH Browser

CUI

M0001661

Previous indexing

Bacteria (1966-1980)

History note

98(81); ARCHAEA was see ARCHAEOBACTERIA 1995-97

Public note

98; see ARCHAEOBACTERIA 1992-97, see ARCHAEBACTERIA 1991, see BACTERIA 1981-90; ARCHAEA was see ARCHAEOBACTERIA 1995-97