Archaea
E6420
Archaea are a domain of single-celled microorganisms distinct from bacteria and eukaryotes, often known for thriving in extreme environments and possessing unique biochemical and genetic features.
Aliases (1)
Statements (85)
| Predicate | Object |
|---|---|
| instanceOf |
domain of life
→
microorganism → prokaryote → |
| archaellaSimilarity |
functionally similar to bacterial flagella
→
|
| archaellaStructure |
distinct from bacterial flagella
→
|
| biotechnologicalUses |
extremozymes
→
thermostable enzymes → |
| cellDivisionMachinery |
shares features with eukaryotes
→
|
| cellShape |
bacilli
→
cocci → irregular shapes → |
| cellType |
unicellular
→
|
| cellWallComponents |
polysaccharides
→
proteins → pseudopeptidoglycan → |
| cellWallContainsPeptidoglycan |
false
→
|
| chromosomeStructure |
single circular chromosome
→
|
| discoveredBy |
Carl Woese
→
|
| discoveryMethod |
16S rRNA sequence analysis
→
|
| distinguishedFrom |
Bacteria
→
Eukarya → |
| electronAcceptors |
carbon dioxide
→
metal ions → nitrate → sulfur → |
| energySources |
chemolithotrophy
→
chemoorganotrophy → phototrophy (non-oxygenic) → |
| environmentalImportance |
greenhouse gas emissions control
→
nutrient cycling → |
| foundIn |
biofilms
→
marine plankton → sediments → |
| GCContent |
variable
→
|
| geneticMaterial |
circular DNA chromosome
→
|
| genomeSizeRange |
small to moderate
→
|
| habitats |
acidic environments
→
alkaline environments → animal digestive tracts → hot springs → human microbiome → hydrothermal vents → open ocean → salt lakes → soil → |
| histoneLikeProteins |
present
→
|
| includes |
acidophiles
→
halophiles → methanogens → psychrophiles → thermophiles → |
| intronsInGenes |
sometimes present
→
|
| kingdomsIncluded |
Crenarchaeota
→
Euryarchaeota → Korarchaeota → Nanoarchaeota → Thaumarchaeota → |
| membraneBoundOrganelles |
absent
→
|
| membraneLipidBackbone |
glycerol-1-phosphate
→
|
| membraneLipidSideChains |
isoprenoid chains
→
|
| membraneLipidType |
ether-linked lipids
→
|
| metabolicDiversity |
high
→
|
| motilityStructures |
archaella
→
|
| nucleus |
absent
→
|
| originalName |
archaebacteria
→
|
| oxygenRelationship |
aerobic species present
→
anaerobic species present → |
| pathogenicityToHumans |
rare or unknown
→
|
| peptidoglycanTargetingAntibioticSensitivity |
generally resistant
→
|
| phylogeneticPosition |
separate from bacteria and eukaryotes
→
|
| plasmids |
present
→
|
| recognizedAsDomain |
late 1970s
→
|
| reproductionMethods |
binary fission
→
budding → fragmentation → |
| reproductionType |
asexual
→
|
| ribosomalRNAFeatures |
similar to eukaryotes
→
|
| ribosomeType |
70S
→
|
| roleInCarbonCycle |
methane production
→
|
| roleInNitrogenCycle |
ammonia oxidation
→
|
| sporeFormation |
generally absent
→
|
| taxonomicRank |
domain
→
|
| transcriptionMachinerySimilarity |
eukaryotes
→
|
| translationInitiation |
similar to eukaryotes
→
|
| tRNAFeatures |
similar to eukaryotes
→
|
Referenced by (13)
| Subject (surface form when different) | Predicate |
|---|---|
|
Crenarchaeota
→
Euryarchaeota → Korarchaeota → Nanoarchaeota → Thaumarchaeota → |
domain |
|
Crenarchaeota
→
Euryarchaeota → Korarchaeota → Nanoarchaeota → Thaumarchaeota → |
kingdom |
|
Animalia
→
|
distinguishedFrom |
|
Crenarchaeota
→
|
isPartOf |
|
Monera
("Archaea domain")
→
|
replacedBy |