Archaebacteria are primitive, single-celled microorganisms that are prokaryotes with no cell nucleus. Each archaea has the ability to live in very severe environments.
Archaebacteria are one of the six kingdoms of life: plants, animals, protists, fungi, eubacteria and archaebacteria.
Crenarchaeota Examples
One type of archaebacteria is crenarchaeota, which can live in extreme temperatures or acidity.
Examples include:
- Acidilobus saccharovorans
- Aeropyrum pernix
- Desulfurococcus kamchatkensis
- Hyperthermus butylicus
- Igniococcus hospitalis
- Ignisphaera aggregans
- Pyrolobus fumarii
- Staphylothermus hellenicus
- Staphylothermus marinus
- Thermosphaera aggregans
- Acidianus hospitalis
- Metallosphaera cuprina
- Metallosphaera sedula
- Sulfolobus acidocaldarius
- Sulfolobus islandicus
- Sulfolobus solfataricus
- Sulfolobus tokodaii
- Caldivirg maquilingensis
- Pyrobaculum aerophilum
- Pyrobaculum arsenaticum
- Pyrobaculum calidifontis
- Pyrobaculum islandicum
- Thermofilum pendens
- Thermoproteus neutrophilus
- Thermoproteus tenax
- Thermoproteus uzoniensis
- Vulcanisaeta distributa
- Vulcanisaeta moutnovskia
Euryarchaeota Examples
Another type of archaebacteria is euryarchaeota, which include ones who produce methane or live in water with a high salt content.
Examples include:
- Archaeoglobus fulgidus
- Archaeoglobus veneficus
- Archaeoglobus profundus
- Ferroglobus placidus
- Halalkalicoccus jeotgali
- Haloarcula hispanica
- Haloarcula marismortui
- Halobacterium salinarum
- Halobiforma lacisalsi
- Haloferax volcanii
- Halogeometricum borinquense
- Halomicrobium mukohataei
- Halopiger xanaduensis
- Haloquadratum walsbyi
- Halorhabdus tiamatea
- Halorhabdus utahensis
- Halorubrum lacusprofundi
- Haloterrigena turkmenica
- Natrialba asiatica
- Natrialba magadii
- Natronomonas pharaonis
- Methanobacterium thermoautotrophicum
- Methanobrevibacter ruminantium
- Methanobrevibacter smithii
- Methanosphaera stadtmanae
- Methanothermobacter marburgensis
- Methanothermus fervidus
- Methanocaldococcus fervens
- Methanocaldococcus infernus
- Methanocaldococcus jannaschii
- Methanocaldococcus vulcanius
- Methanococcus aeolicus
- Methanococcus maripaludis
- Methanococcus vannielii
- Methanococcus voltae
- Methanothermococcus okinawensis
- Methanotorris igneus
- Candidatus Methanoregula boonei
- Methanocella paludicola
- Methanocella conradii
- Methanococcoides burtonii
- Methanocorpusculum labreanum
- Methanoculleus marisnigri
- Methanohalobium evestigatum
- Methanohalophilus mahii
- Methanoplanus petrolearius
- Methanosalsum zhilinae
- Methanosaeta concilii
- Methanosaeta harundinacea
- Methanosaeta thermophila
- Methanosarcina acetivorans
- Methanosarcina barkeri
- Methanosarcina mazei
- Methanosphaerula palustris
- Methanospirillum hungatei
- Methanopyrus kandleri
- Pyrococcus abyssi
- Pyrococcus furiosus
- Pyrococcus horikoshii
- Pyrococcus yayanosii
- Thermococcus barophilus
- Thermococcus gammatolerans
- Thermococcus kodakaraensis
- Thermococcus onnurineus
- Thermococcus sibiricus
- Ferroplasma acidarmanus
- Picrophilus torridus
- Thermoplasma acidophilum
- Thermoplasma volcanium
Methanogen Examples
Methanogens are archaeabacteria that produce methane gas as a metabolic byproduct in areas of low oxygen content. They are found in human intestines, wetlands, hot springs or geothermal vents.
Examples include these strains:
- Methanobacterium bryantii
- Methanobacterium formicum
- Methanobrevibacter arboriphilicus
- Methanobrevibacter gottschalkii
- Methanobrevibacter ruminantium
- Methanobrevibacter smithii
- Methanocalculus chunghsingensis
- Methanococcoides burtonii
- Methanococcus aeolicus
- Methanococcus deltae
- Methanococcus jannaschii
- Methanococcus maripaludis
- Methanococcus vannielii
- Methanocorpusculum labreanum
- Methanoculleus bourgensis
- Methanoculleus marisnigri
- Methanofollis liminatans
- Methanogenium cariaci
- Methanogenium frigidum
- Methanogenium organophilum
- Methanogenium wolfei
- Methanomicrobium mobile
- Methanopyrus kandleri
- Methanoregula boonei
- Methanosaeta concilii
- Methanosaeta thermophila
- Methanosarcina acetivorans
- Methanosarcina barkeri
- Methanosarcina mazei
- Methanosphaera stadtmanae
- Methanospirillium hungatei
- Methanothermobacter defluvii
- Methanothermobacter thermautotrophicus
- Methanothermobacter thermoflexus
- Methanothermobacter wolfei
- Methanothrix sochngenii
Halobacteriaceae Examples
Halobacteriaceae are archaebacteria that live in highly-saturated salty environments.
Examples include:
- Haladaptatus
- Halalkalicoccus
- Halarchaeum
- Haloalcalophilium
- Haloarcula
- Halobacterium
- Halobaculum
- Halobellus
- Halobiforma
- Halococcus
- Haloferax
- Halogeometricum
- Halogranum
- Halolamina
- Halomarina
- Halomicrobium
- Halonotius
- Halopelagius
- Halopiger
- Haloplanus
- Haloquadratum
- Halorhabdus
- Halorientalis
- Halorubrum
- Halorussus
- Halosarcina
- Halosimplex
- Halostagnicola
- Haloterrigena
- Halovivax
- Natrialba
- Natrinema
- Natronoarchaeum
- Natronobacterium
- Natronococcus
- Natronolimnobius
- Natronomonas
- Natronorubrum
- Salarchaeum
Thermophiles Examples
Thermophiles are archaebacteria that live at extremely hot temperatures, as in geothermal environments.
Examples of species of the genus Sulfolobus include:
- Sulfolobus acidocaldarius
- Sulfolobus islandicus
- Sulfolobus metallicus
- Sulfolobus neozealandicus
- Sulfolobus shibatae
- Sulfolobus solfataricus
- Sulfolobus tengchongensis
- Sulfolobus thuringiensis
- Sulfolobus tokodaii
- Sulfolobus yangmingensis
Psychrophiles Examples
Psychrophiles are archaebacteria that thrive in extremely cold temperatures from a polar region to the deep sea.
Examples include:
- Methanogenium boonei
- Methanogenium cariaci
- Methanogenium frigidum
- Methanogenium marinum
- Methanogenium organophilum
- Methanococcoides burtonii
- Methanococcus aeolicus
- Methanococcus maripaludis
- Methanococcus vannielii
- Methanococcus voltae
- Methanococcus thermolithotrophicus
- Methanococcus jannaschi
Other Archaebacteria Examples
- Candidatus Korarchaeum cryptofilum
- Nanoarchaeum equitans
- Cenarchaeum symbiosum – Strain A
- Cenarchaeum symbiosum – Strain B
- Candidatus Nitrosoarchaeum limnia
- Nitrosopumilus maritimus
These different examples of archaebacteria have unusual cell walls, membranes, ribosomes and RNA sequences. They tend to have the ability to produce methane.
