Meiothermus: Difference between revisions
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[[Image:meiostructure.jpg|thumbnail|400px|Figure 3. "A: Electron micrograph of ''Meiothermus ruber'' forming a short filaments, B: Electron micrograph ''Meiothermus silvanus'' forming as individual cells". Image from Dr. Manfred Rohde of the Helmholz for Infection Research, Braunschweig [http://http://regen.jgi-psf.org/education/adoptagenome/index.html]]] | [[Image:meiostructure.jpg|thumbnail|400px|Figure 3. "A: Electron micrograph of ''Meiothermus ruber'' forming a short filaments, B: Electron micrograph ''Meiothermus silvanus'' forming as individual cells". Image from Dr. Manfred Rohde of the Helmholz for Infection Research, Braunschweig [http://http://regen.jgi-psf.org/education/adoptagenome/index.html]]] | ||
''Meiothermus'', is a Gram-negative, aerobic microorganism that is variable in length - often forming short filaments. | ''Meiothermus'', is a Gram-negative, aerobic microorganism that is variable in length - often forming short filaments. It is primarily an oxygenic chemoorganoheterotroph, but some species grow with nitrate as the terminal electron acceptor. As such, it utilizes such organic substrates such as starch, hexoses, pentoses, disaccharides, amino acids, and organic acids as both a carbon and energy source. The optimum growth conditions varies in a moderate temperature range (50-65°C) and alkaline environments (pH ~8.0). | ||
Interesting features of cell structure; how it gains energy; what important molecules it produces. | Interesting features of cell structure; how it gains energy; what important molecules it produces. | ||
Revision as of 01:50, 14 April 2011
Classification
Domain: Bacteria, Phylum: Deinococcus-Thermus, Class: Deinococci, Order: Thermales, Family: Thermaceae
Species
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NCBI: Taxonomy |
- Meiothermus chiliarophilus
- Meiothermus cerbereus
- Meiothermus granaticius
- Meiothermus rosaceus
- Meiothermus ruber
- Meiothermus rufus
- Meiothermus silvanus
- Meiothermus timidus
- Meiothermus taiwanensis
Description and Significance
Before the recognition of the genus Meiothermus, the species under the genus Thermus were designated as either high or low-temperature species. The proposal of a new genus Meiothermus in 1996 was made to designate the phylogenetic, phenotypic, and chemotaxonomic distinctiveness of the species that have low optimum growth temperatures. Meiothermus indicates an organism living in a "less-hot" place [1]. The cells are 0.5 to 0.8 μm in diameter and cell length is variable - often forming short filaments. The colonies that form vary from red to yellow pigment and are often found in hydrothermal vents.
Describe the appearance, habitat, etc. of the organism, and why you think it is important.
Genome Structure
Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence?
Cell Structure, Metabolism and Life Cycle
Meiothermus, is a Gram-negative, aerobic microorganism that is variable in length - often forming short filaments. It is primarily an oxygenic chemoorganoheterotroph, but some species grow with nitrate as the terminal electron acceptor. As such, it utilizes such organic substrates such as starch, hexoses, pentoses, disaccharides, amino acids, and organic acids as both a carbon and energy source. The optimum growth conditions varies in a moderate temperature range (50-65°C) and alkaline environments (pH ~8.0).
Interesting features of cell structure; how it gains energy; what important molecules it produces.
Ecology and Pathogenesis
Habitat; symbiosis; biogeochemical significance; contributions to environment.
If relevant, how does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.
References
Author
Page authored by Michael Huarng and Steven Huynh, student of Prof. Jay Lennon at Michigan State University.
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