MeSH Browser

MeSH Heading: Archaea
Tree Number(s): B02
Unique ID: D001105
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D001105
Annotation: in taxonomy, one of the 3 domains of life along with BACTERIA & Eucarya
Scope Note: 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.
Entry Term(s): Archaebacteria; Archaeobacteria; Archaeon; Archebacteria
Registry Number: txid2157
Previous Indexing: Bacteria (1966-1980)
Public MeSH Note: 98; see ARCHAEOBACTERIA 1992-97, see ARCHAEBACTERIA 1991, see BACTERIA 1981-90; ARCHAEA was see ARCHAEOBACTERIA 1995-97
History Note: 98(81); ARCHAEA was see ARCHAEOBACTERIA 1995-97
Date Established: 1991/01/01
Date of Entry: 1980/04/02
Revision Date: 2020/08/13

Allowable Qualifiers: chemistry (CH)

classification (CL)

cytology (CY)

drug effects (DE)

enzymology (EN)

genetics (GE)

growth & development (GD)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pathogenicity (PY)

physiology (PH)

radiation effects (RE)

ultrastructure (UL)

virology (VI)

Concept UI: M0001661
Registry Number: txid2157
Scope Note: 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.
Terms: Archaea Preferred Term
Term UI T003344
Date01/01/1999
LexicalTag NON
ThesaurusID NLM (1981); Archebacteria
Term UI T003346
Date04/18/1991
LexicalTag NON
ThesaurusID NLM (1992); Archaeon
Term UI T003347
Date03/04/1997
LexicalTag NON
ThesaurusID NLM (1998); Archaebacteria
Term UI T003345
Date03/30/1991
LexicalTag NON
ThesaurusID NLM (1992); Archaeobacteria
Term UI T003343
Date09/30/1996
LexicalTag NON
ThesaurusID NLM (1998)

Archaea MeSH Descriptor Data 2023