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Archaea - Microbial diversity (Week 11) - Coggle Diagram
Archaea - Microbial diversity (Week 11)
General characteristics
Morphology
No peptidoglycan in the cell wall
"Pseudopeptidoglycan"
Different phospholipid membrane structure
RNA Polymerase is more similar to eukaryotes
Phenotypes are highly defined
Highly diverse metabolism
Domain-specific
Methane producers
Mainly extremophiles
Therefore makes them hard to identify / collect / discover
No pathogenicity
2 Major Phyla
Crenarchaeota / Phermoproteota
The most ancient phyla
LUCA?
Hyperthermophile
Extreme temperatures
Extremophiles
Can be found in cold environments
Euryarchaeota
Halophile
1.5M salt concentration
e.g. Halobacterium spp.
Examples of metabolic diversity
Halobacterium spp.
Halophile
1.5M salt concentration
Salinity
Methanogenic Archaea
Methanobacterium spp.
Picrophilus spp.
Part of the Thermoplasmatales
All Acidophiles
pH 0.7 to 2
Most acidophilic organism currently found
Archaeoglobales
Hyperthermophilic
3 Other lesser Phyla
Korarchaeota
Nanoarchaeota
Thaumarchaeota
More Phylas have potential to be discovered
Limited by extreme conditions
Unable to be cultured