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Thermococcus
In taxonomy, ''Thermococcus'' is a genus of thermophilic Archaea in the family the Thermococcaceae. Members of the genus ''Thermococcus'' are typically irregularly shaped coccoid species, ranging in size from 0.6 to 2.0 μm in diameter. Some species of ''Thermococcus'' are immobile, and some species have motility, using flagella as their main mode of movement. These flagella typically exist at a specific pole of the organism. This movement has been seen at room or at high temperatures, depending on the specific organism. In some species, these microorganisms can aggregate and form white-gray plaques.Tae-Yang Jung, Y.-S. K., Byoung-Ha Oh, and Euijeon Woo (2012). "Identification of a novel ligand binding site in phosphoserine phosphatase from the hyperthermophilic archaeon ''Thermococcus onnurineus''." Wiley Periodicals: 11. Species under ''Thermococcus'' typically thrive at temperatures between 60 and 105 °C, either in the presence of black smokers (hydrothermal vents), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Sibiricus
In taxonomy, ''Thermococcus'' is a genus of thermophilic Archaea in the family the Thermococcaceae. Members of the genus ''Thermococcus'' are typically irregularly shaped coccoid species, ranging in size from 0.6 to 2.0 μm in diameter. Some species of ''Thermococcus'' are immobile, and some species have motility, using flagella as their main mode of movement. These flagella typically exist at a specific pole of the organism. This movement has been seen at room or at high temperatures, depending on the specific organism. In some species, these microorganisms can aggregate and form white-gray plaques.Tae-Yang Jung, Y.-S. K., Byoung-Ha Oh, and Euijeon Woo (2012). "Identification of a novel ligand binding site in phosphoserine phosphatase from the hyperthermophilic archaeon ''Thermococcus onnurineus''." Wiley Periodicals: 11. Species under ''Thermococcus'' typically thrive at temperatures between 60 and 105 °C, either in the presence of black smokers (hydrothermal vents), or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Barossii
In taxonomy, ''Thermococcus'' is a genus of thermophilic Archaea in the family the Thermococcaceae. Members of the genus ''Thermococcus'' are typically irregularly shaped coccoid species, ranging in size from 0.6 to 2.0 μm in diameter. Some species of ''Thermococcus'' are immobile, and some species have motility, using flagella as their main mode of movement. These flagella typically exist at a specific pole of the organism. This movement has been seen at room or at high temperatures, depending on the specific organism. In some species, these microorganisms can aggregate and form white-gray plaques.Tae-Yang Jung, Y.-S. K., Byoung-Ha Oh, and Euijeon Woo (2012). "Identification of a novel ligand binding site in phosphoserine phosphatase from the hyperthermophilic archaeon ''Thermococcus onnurineus''." Wiley Periodicals: 11. Species under ''Thermococcus'' typically thrive at temperatures between 60 and 105 °C, either in the presence of black smokers (hydrothermal vents), or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Gammatolerans
''Thermococcus gammatolerans'' is an archaea extremophile and the most radiation-resistant organism known to exist. As reported in 2003 the type strain EJ3T was taken from a submarine hydrothermal vent in the Guaymas Basin off the coast of Baja California at a depth of about 2,600 m by submersible Nautile during the 1991 ''Guaynaut'' cruise. ''Thermococcus gammatolerans'' thrives in temperatures between 55 and 95 °C with an optimum development around 88 °C. Its optimal growth pH is 6, favoring the presence of sulfur (S), which is reduced to hydrogen sulfide (). It is the organism with the strongest known resistance to radiation, supporting a radiation of gamma rays from 30,000 gray (Gy). Along with the genera ''Palaeococcus'' and ''Pyrococcus'', ''Thermococcus'' belongs to the Thermococcaceae family, sole family of the Thermococci (called "Protoarchaea" by Cavalier-Smith), a class in the phylum Euryarchaeota of Archaea. ''Thermococcus'' species live in extre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Celer
''Thermococcus celer'' is a Gram-negative, spherical-shaped archaeon of the genus ''Thermococcus''.Achenbach-Richter, L., R. Gupta, W. Zillig, C. R. Woese. 1988. Rooting the Archaebacterial Tree: The Pivitol Role of Thermococcus celer in Archaebacterial Evolution. Syst. Appl. Microbial. 10:231-240. Print. The discovery of ''T. celer'' played an important role in rerooting the tree of life when ''T. celer'' was found to be more closely related to methanogenic Archaea than to other phenotypically similar thermophilic species. ''T. celer'' was the first archaeon discovered to house a circularized genome. Several type strains of ''T. celer'' have been identified: Vu13, ATCC 35543, and DSM 2476. Isolation ''T. celer'' was discovered by Dr. Wolfram Zillig in 1983. The organism was isolated on the beaches of Vulcano, Italy, from a sulfur-rich shallow volcanic crater. Original samples were isolated from the depths of the marine holes and inoculated into 10-ml anaerobic tubes.Zillig, W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Barophilus
''Thermococcus barophilus'' is a piezophilic and hyperthermophilic archaeon isolated from a deep-sea hydrothermal vent. It is anaerobic and sulfur-metabolising, with type strain MPT. Nomenclature The name ''Thermococcus barophilus'' has Greek roots, ''thermo'' for heat, ''kokkos'' for the spherical cells, ''baros'' for weight, and ''philos'' for loving. Overall, the name means "organism with a spherical body that gravitates to heat and to the pressure of the water column." Physiology ''T. barophilus'' can grow at even higher temperatures if the pressure is high, as well. At an atmospheric pressure, it can grow at temperatures of 45-90 °C, with an optimal temperature of 85 °C, but it can grow at temperatures as high as 100 °C if the hydrostatic pressure Fluid statics or hydrostatics is the branch of fluid mechanics that studies the condition of the equilibrium of a floating body and submerged body "fluids at hydrostatic equilibrium and the pressure in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Kodakarensis
''Thermococcus kodakarensis'' is a species of thermophilic archaea. The type strain ''T. kodakarensis'' KOD1 is one of the best-studied members of the genus. History ''T. kodakarensis'' was isolated from a solfatara near the shore of Kodakara Island, Kagoshima, Japan. The isolate was originally named ''Pyrococcus kodakarensis'' KOD1, but reclassified as a species of ''Thermococcus'', based on 16S rRNA sequence. Early research with ''T. kodakarensis'' was directed mostly at its thermostable enzymes, but its relative ease of handling and genetic manipulation facilitated by natural competence has made it an attractive system for the study of several biological processes. Properties ''T. kodakarensis'' cells are irregular cocci 1–2 μm in diameter, often occurring in pairs, and are highly motile by means of lophotrichous archaella. The cell wall consists of a layer of diether and tetraether lipids, and an outer glycoprotein coat. ''T. kodakarensis'' is an obligate ana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Hydrothermalis
''Thermococcus hydrothermalis'' is a hyperthermophilic archaeon. It is strictly anaerobic and coccus-shaped, and its cells range from 0.8 to 2.0 μm in diameter, with type strain AL662T. It was isolated from a hydrothermal vent in the East Pacific Rise. This species is notable for its α-glucosidase Glucosidases are the glycoside hydrolase enzymes categorized under the EC number 3.2.1. Function Alpha-glucosidases are enzymes involved in breaking down complex carbohydrates such as starch and glycogen into their monomers. They catalyze t ..., which functions optimally at a temperature of 110 °C. References Further reading * *Erra-Pujada, Marta, et al. "The type II pullulanase of Thermococcus hydrothermalis: molecular characterization of the gene and expression of the catalytic domain." Journal of Bacteriology 181.10 (1999): 3284–3287. *Postec, Anne, et al. "Optimisation of growth conditions for continuous culture of the hyperthermophilic archaeon'' Thermococcus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Profundus
''Thermococcus profundus'' is a hyperthermophilic archaeon isolated from a deep-sea hydrothermal vent. It is coccoid-shaped with 1–2 μm in diameter, designated as strain DT5432. One amylase An amylase () is an enzyme that catalyses the hydrolysis of starch (Latin ') into sugars. Amylase is present in the saliva of humans and some other mammals, where it begins the chemical process of digestion. Foods that contain large amounts of ... isolated from ''T. profundus'' strain DT5432 was found to function at an optimal temperature of 80 °C. The scientists who extracted it speculate that it may have applications in the starch industry because of its heat tolerance and lack of any need for metal ions. References Further reading * * * * External links *LPSN [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Litoralis
''Thermococcus litoralis'' (''T. litoralis'') is a species of Archaea that is found around deep-sea hydrothermal vents as well as shallow submarine thermal springs and oil wells. It is an anaerobic organism, anaerobic organotroph hyperthermophile that is between in diameter. Like the other species in the order thermococcales, ''T. litoralis'' is an irregular hyperthermophile coccus that grows between . Unlike many other thermococci, ''T. litoralis'' is Motility, non-motile. Its cell wall consists only of a single S-layer that does not form hexagonal lattices. Additionally, while many thermococcales obligately use sulfur as an electron acceptor in metabolism, ''T. litoralis'' only needs sulfur to help stimulate growth, and can live without it. ''T. litoralis'' has recently been popularized by the scientific community for its ability to produce an alternative DNA polymerase to the commonly used Taq polymerase. The ''T. litoralis'' polymerase, dubbed the vent polymerase, has been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Chitonophagus
''Thermococcus chitonophagus'' is a chitin-degrading, hyperthermophilic archaeon isolated from a deep-sea hydrothermal vent. It is anaerobic, round to slightly irregular coccus-shaped, 1.2–2.5 μm in diameter, and motile by means of a tuft of flagella A flagellum (; ) is a hairlike appendage that protrudes from certain plant and animal sperm cells, and from a wide range of microorganisms to provide motility. Many protists with flagella are termed as flagellates. A microorganism may have f .... ''T. chitonophagus'' is one of only three species of archaeon that can grow on chitin. The chitinase was isolated and found to have a molecular weight of 70 kDa. It retains 50% of its activity after an hour at 120 °C. References Further reading * * * External links *LPSN [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Stetteri
''Thermococcus stetteri'' is an extremely thermophilic, marine, sulfur-metabolizing archaebacterium. It is anaerobic, its cells being irregular cocci 1 to 2 μm in diameter. Of the strains first isolated, two were motile due to a tuft of flagella, while the other two strains were nonmotile. Its type strain is K-3 (DSM 5262). It can grow on starch, pectin, and peptides, but not amino acid Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. Although hundreds of amino acids exist in nature, by far the most important are the alpha-amino acids, which comprise proteins. Only 22 alpha am ...s. References Further reading * * External links *LPSN [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermococcus Peptonophilus
''Thermococcus peptonophilus'' is a fast-growing hyperthermophilic archaeon. It is coccus-shaped, obligately anaerobic and about 0.7–2 μm in diameter. It is a strict anaerobe and grows exclusively on complex substrates, such as peptone, casein, tryptone, and yeast extract. It cannot use carbon dioxide as a source of carbon. Although it can grow somewhat in the absence of elemental sulfur Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula ..., it prefers sulfur. References Further reading *Canganella, Francesco, et al. "Pressure and temperature effects on growth and viability of the hyperthermophilic archaeon Thermococcus peptonophilus."Archives of Microbiology 168.1 (1997): 1-7. *Horikoshi, Koki. "Alkaliphiles: some applications of their products for biotechnology." Microb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |