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Descriptor English: Archaea
Descriptor Spanish: Archaea
Descriptor Archaea
Entry term(s) Archaebacteria
Scope note: Uno de los tres dominios de la vida (los otros son BACTERIA y Eucarya), antiguamente denominados Archaebacteria bajo el taxón Bacteria, pero considerado en la actualidad separado y distinto. Se caracterizan por: (1) presencia de tARN y ARN ribosómicos característicos; (2) ausencia de paredes celulares con peptidoglucano; (3) presencia de lípidos ligados con éter construidos a partir de subunidades de cadena ramificada; y (4) su ocurrencia en hábitats inhabituales. Aunque archaea se parecen a bacteria en morfología y organización genómica, se asemejan a eucarya en su método de replicación genómica. El dominio contiene al menos tres reinos: CRENARCHAEOTA, EURYARCHAEOTA, NANOARCHAEOTA y KORARCHAEOTA.
Descriptor Portuguese: Archaea
Descriptor French: Archéobactéries
Entry term(s): Archaebacteria
Archaeobacteria
Archaeon
Archebacteria
Tree number(s): B02
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D001105
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.
Annotation: in taxonomy, one of the 3 domains of life along with BACTERIA & Eucarya
Allowable Qualifiers: CH chemistry
CL classification
CY cytology
DE drug effects
EN enzymology
GD growth & development
GE genetics
IM immunology
IP isolation & purification
ME metabolism
PH physiology
PY pathogenicity
RE radiation effects
UL ultrastructure
VI virology
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
DeCS ID: 30301
Unique ID: D001105
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1991/01/01
Date of Entry: 1980/04/02
Revision Date: 2009/07/06
Archaea - Preferred
Concept UI M0001661
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.
Preferred term Archaea
Entry term(s) Archaebacteria
Archaeobacteria
Archaeon
Archebacteria



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