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The Thermoproteota are prokaryotes that have been classified as a phylum of the Archaea domain. Initially, the Thermoproteota were thought to be sulfur-dependent extremophiles but recent studies have identified characteristic Thermoproteota environmental rRNA indicating the organisms may be the most abundant archaea in the marine environment. Originally, they were separated from the other archaea based on rRNA sequences; other physiological features, such as lack of histones, have supported this division, although some crenarchaea were found to have histones. Until recently all cultured Thermoproteota had been thermophilic or hyperthermophilic organisms, some of which have the ability to grow at up to 113 °C. These organisms stain Gram negative and are morphologically diverse, having rod, cocci, filamentous and oddly-shaped cells.
The Deferribacteraceae are a family of gram-negative bacteria which make energy by anaerobic respiration.
Archaeoglobaceae are a family of the Archaeoglobales. All known genera within the Archaeoglobaceae are hyperthermophilic and can be found near undersea hydrothermal vents. Archaeoglobaceae are the only family in the order Archaeoglobales, which is the only order in the class Archaeoglobi.
Archaeoglobus is a genus of the phylum Euryarchaeota. Archaeoglobus can be found in high-temperature oil fields where they may contribute to oil field souring.
Sulfolobus is a genus of microorganism in the family Sulfolobaceae. It belongs to the archaea domain.
Thermoproteus is a genus of archaeans in the family Thermoproteaceae. These prokaryotes are thermophilic sulphur-dependent organisms related to the genera Sulfolobus, Pyrodictium and Desulfurococcus. They are hydrogen-sulphur autotrophs and can grow at temperatures of up to 95 °C.
Methanococcus is a genus of coccoid methanogens of the family Methanococcaceae. They are all mesophiles, except the thermophilic M. thermolithotrophicus and the hyperthermophilic M. jannaschii. The latter was discovered at the base of a “white smoker” chimney at 21°N on the East Pacific Rise and it was the first archaeal genome to be completely sequenced, revealing many novel and eukaryote-like elements.
Acidilobales are an order of archaea in the class Thermoprotei.
Thermoproteales are an order of archaeans in the class Thermoprotei. They are the only organisms known to lack the SSB proteins, instead possessing the protein ThermoDBP that has displaced them. The rRNA genes of these organisms contain multiple introns, which can be homing endonuclease encoding genes, and their presence can impact the binding of "universal" 16S rRNA primers often used in environmental sequencing surveys.
The Pyrodictiaceae are a family of disc-shaped anaerobic microorganisms belonging to the order Desulfurococcales, in the domain Archaea. Members of this family are distinguished from the other family (Desulfurococcaceae) in the order Desulfurococcales by having an optimal growth temperature above 100 °C, rather than below 100 °C.
Thermofilaceae are a family of archaea in the order Thermoproteales.
In taxonomy, the Thermoproteaceae are a family of the Thermoproteales.
In taxonomy, Caldivirga is a genus of the Thermoproteaceae.
Pyrobaculum is a genus of the Thermoproteaceae.
Sulfurisphaera is a genus of the Sulfolobaceae.
In taxonomy, Thermococcus is a genus of thermophilic Archaea in the family the Thermococcaceae.
Acidilobus is a genus of archaea in the family Acidilobaceae.
Aeropyrum is a genus of archaea in the family Desulfurococcaceae.
Thermosphaera is a genus of the Desulfurococcaceae. They are a group of prokaryotic organisms which have been discovered in extremely hot environments such as sulfur springs, volcanoes, and magma pools. Isolates of Thermosphaera were first identified in 1998 from the Obsidian Pool in Yellowstone National Park.
Pyrodictium is a genus in the family Pyrodictiaceae. It is a genus of submarine hyperthermophilic Archaea whose optimal growth temperature range is 80 to 105 °C. They have a unique cell structure involving a network of cannulae and flat, disk-shaped cells. Pyrodictium are found in the porous walls of deep-sea vents where the temperatures inside get as high as 400 °C, while the outside marine environment is typically 3 °C. Pyrodictium is apparently able to adapt morphologically to this type of hot–cold habitat.
References
- 1 2 Sayers; et al. "Vulcanisaeta". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2023-06-10.
- ↑ J.P. Euzéby. "Vulcanisaeta". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2023-06-10.
- ↑ "The LTP" . Retrieved 10 May 2023.
- ↑ "LTP_all tree in newick format" . Retrieved 10 May 2023.
- ↑ "LTP_06_2022 Release Notes" (PDF). Retrieved 10 May 2023.
- ↑ "GTDB release 08-RS214". Genome Taxonomy Database . Retrieved 10 May 2023.
- ↑ "ar53_r214.sp_label". Genome Taxonomy Database . Retrieved 10 May 2023.
- ↑ "Taxon History". Genome Taxonomy Database . Retrieved 10 May 2023.
