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Hydrogenothermaceae
The Hydrogenothermaceae family are bacteria that live in harsh environmental settings. They have been found in hot springs, sulfur pools, and thermal ocean vents. They are true bacteria as opposed to the other inhabitants of extreme environments, the Archaea. An example occurrence of certain extremophiles in this family are organisms of the genus ''Sulfurihydrogenibium'' that are capable of surviving in extremely hot environments such as Hverigerdi, Iceland. Obtaining energy Hydrogenothermaceae families consist of aerobic or microaerophilic bacteria, which generally obtain energy by oxidation of hydrogen or reduced sulfur compounds by molecular oxygen. Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LSPN) and the National Center for Biotechnology Information The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Inst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquificae
The ''Aquificota'' phylum (biology), phylum is a diverse collection of bacteria that live in harsh environmental settings. The name ''Aquificota'' was given to this phylum based on an early genus identified within this group, ''Aquifex'' (“water maker”), which is able to produce water by oxidizing hydrogen. They have been found in springs, pools, and oceans. They are autotrophs, and are the primary carbon fixers in their environments. These bacteria are Gram-negative, non-spore-forming Bacillus (shape), rods. They are true bacteria (domain (biology), domain Bacteria) as opposed to the other inhabitants of extreme environments, the Archaea. Taxonomy The ''Aquificota'' currently contain 15 genera and 42 validly published species. The phylum comprises a single class and two orders. Aquificales consists of the families Aquificaceae and Hydrogenothermaceae, while the Desulfurobacteriaceae are the only family within the Desulfobacteriales. ''Thermosulfidibacter takaii'' is not assig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquificales
The ''Aquificota'' phylum is a diverse collection of bacteria that live in harsh environmental settings. The name ''Aquificota'' was given to this phylum based on an early genus identified within this group, ''Aquifex'' (“water maker”), which is able to produce water by oxidizing hydrogen. They have been found in springs, pools, and oceans. They are autotrophs, and are the primary carbon fixers in their environments. These bacteria are Gram-negative, non-spore-forming rods. They are true bacteria (domain Bacteria) as opposed to the other inhabitants of extreme environments, the Archaea. Taxonomy The ''Aquificota'' currently contain 15 genera and 42 validly published species. The phylum comprises a single class and two orders. Aquificales consists of the families Aquificaceae and Hydrogenothermaceae, while the Desulfurobacteriaceae are the only family within the Desulfobacteriales. ''Thermosulfidibacter takaii'' is not assigned to a family within the phylum based on its phylog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquificota
The ''Aquificota'' phylum is a diverse collection of bacteria that live in harsh environmental settings. The name ''Aquificota'' was given to this phylum based on an early genus identified within this group, ''Aquifex'' (“water maker”), which is able to produce water by oxidizing hydrogen. They have been found in springs, pools, and oceans. They are autotrophs, and are the primary carbon fixers in their environments. These bacteria are Gram-negative, non-spore-forming rods. They are true bacteria (domain Bacteria) as opposed to the other inhabitants of extreme environments, the Archaea. Taxonomy The ''Aquificota'' currently contain 15 genera and 42 validly published species. The phylum comprises a single class and two orders. Aquificales consists of the families Aquificaceae and Hydrogenothermaceae, while the Desulfurobacteriaceae are the only family within the Desulfobacteriales. ''Thermosulfidibacter takaii'' is not assigned to a family within the phylum based on its phylog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venenivibrio
''Venenivibrio stagnispumantis'' strain CP.B2 is the first microorganisms isolated from the terrestrial hot spring Champagne Pool (75 °C, pH 5.5) in Waiotapu, New Zealand. Morphology The cells are motile and slightly curved rods (1.04 to 1.56 µm long and 0.33 to 0.41 µm wide). Growth conditions The novel bacterium is an obligate chemolithotroph capable of utilizing H2 as electron donor, O2 as corresponding electron acceptor and CO2 as carbon source. ''Venenivibrio stagnispumantis'' gains metabolic energy using the "Knallgas" reaction H2 + ½ O2 → H2O. For growth either elemental sulphur (S0) or thiosulfate (S2O32−) is required. Growth is observed under thermophilic conditions between 45 °C and 75 °C (optimum 70 °C), under moderate acidophilic conditions between pH 4.8 and 5.8 (optimum pH 5.4) and under microaerophilic conditions between 1.0% and 10.0% (v/v) O2 (optimum between 4.0% and 8.0% (v/v) O2). Phylogeny Phylogenetic analysis ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venenivibrio Stagnispumantis
''Venenivibrio stagnispumantis'' strain CP.B2 is the first microorganisms isolated from the terrestrial hot spring Champagne Pool (75 °C, pH 5.5) in Waiotapu, New Zealand. Morphology The cells are motile and slightly curved rods (1.04 to 1.56 µm long and 0.33 to 0.41 µm wide). Growth conditions The novel bacterium is an obligate chemolithotroph capable of utilizing H2 as electron donor, O2 as corresponding electron acceptor and CO2 as carbon source. ''Venenivibrio stagnispumantis'' gains metabolic energy using the "Knallgas" reaction H2 + ½ O2 → H2O. For growth either elemental sulphur (S0) or thiosulfate (S2O32−) is required. Growth is observed under thermophilic conditions between 45 °C and 75 °C (optimum 70 °C), under moderate acidophilic conditions between pH 4.8 and 5.8 (optimum pH 5.4) and under microaerophilic conditions between 1.0% and 10.0% (v/v) O2 (optimum between 4.0% and 8.0% (v/v) O2). Phylogeny Phylogenetic analysis ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persephonella Marina
''Persephonella marina'' is a Gram-negative, rod shaped bacteria that is a member of the '' Aquificota'' phylum. Stemming from Greek, the name Persephonella is based upon the mythological goddess Persephone. Marina stems from a Latin origin, meaning "belonging to the sea". It is a thermophile with an obligate chemolithoautotrophic metabolism. Growth of ''P. marina'' can occur in pairs or individually, but is rarely seen aggregating in large groups. The organism resides on sulfidic chimneys in the deep ocean and has never been documented as a pathogen. Discovery ''Persephonella marina'' was first isolated in 1999 using MSH medium, a medium containing 29 g NaCl, 2 g NaOH, 0.5 g KCl, 1.36 g MgCl2•6H2O, 7 g MgSO4•7H2O, 2 g Na2S2O3•5H2O, 0.4 g CaCl2•2H2O, 0.2 g NH4Cl, 0.3 g K2HPO4•3H2O and 10 ml of a trace-element stock solution, with a gas phase containing twenty parts carbon dioxide, one part oxygen, and twenty six parts hydrogen gas. Initial isolation was provided by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persephonella Guaymasensis
''Persephonella guaymasensis'' is a thermophilic, hydrogen-oxidizing microaerophile first isolated from a deep-sea hydrothermal vent. It is strictly chemolithoautotrophic A lithoautotroph is an organism which derives energy from reactions of reduced compounds of mineral (inorganic) origin. Two types of lithoautotrophs are distinguished by their energy source; photolithoautotrophs derive their energy from light while ..., microaerophilic, motile, 2-4 micrometres in size, rod-shaped, Gram-negative and non- sporulating. Its type strain is EX-H2T. References Further reading *Tokano, Tetsuya, ed. Water on Mars and life. Vol. 4. Springer, 2005. *D'Imperio, Seth. Microbial Interactions with Arsenite, Hydrogen and Sulfide in an Acid-sulfate-chloride Geothermal Spring. ProQuest, 2008. * External linksLPSN * [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationsh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
