Concept information
Preferred term
Archaea
Type
-
mesh:Descriptor
Definition
- 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.
Narrower concepts
Entry terms
- Archaebacteria
- Archaeobacteria
- Archaeon
- Archebacteria
- txid2157
Allowable Qualifier(s)
- chemistry (Qualifier)
- classification (Qualifier)
- cytology (Qualifier)
- drug effects (Qualifier)
- enzymology (Qualifier)
- genetics (Qualifier)
- growth & development (Qualifier)
- immunology (Qualifier)
- isolation & purification (Qualifier)
- metabolism (Qualifier)
- pathogenicity (Qualifier)
- physiology (Qualifier)
- radiation effects (Qualifier)
- ultrastructure (Qualifier)
- virology (Qualifier)
In other languages
-
French
-
Archaea
-
Archaebactéries
-
Archées
-
txid2157
URI
http://data.loterre.fr/ark:/67375/JVR-LTZ372WP-1
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