ARCHEBACTERIA
\ˌɑːt͡ʃˌɛbɐktˈi͡əɹɪə], \ˌɑːtʃˌɛbɐktˈiəɹɪə], \ˌɑː_tʃ_ˌɛ_b_ɐ_k_t_ˈiə_ɹ_ɪ__ə]\
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One of the three domains of life (the others being BACTERIA and Eucarya), 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 three kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; and KORARCHAEOTA.
By DataStellar Co., Ltd
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