Desulfohalophilus alkaliarsenatis: Difference between revisions
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==Description and Significance== | ==Description and Significance== | ||
[[File:Searles_Lake.jpg| | [[File:Searles_Lake.jpg|right|thumbnail|alt=A large clock tower and other buildings line a great river.|This is the [[Palace of Westminster]] in London]] | ||
''D. alkaliarsenatis'' is best described as an anaerobic, haloalkaliphilic bacteria. The SLSR-1 strain morphology is a motile vibrio that stain Gram-negative. The size of the bacteria is roughly .5 x 3.0μm, while TEM revealed the motility was due in part of a 10 μm polar flagellum. The preferred habitat of ''D. alkaliarsenatis'' is located in Searles Lake in CA, USA due in part to the high salt content and basic pH. It has demonstrated growth capability via sulfate-reduction over a broad range of salinities (50-300g/L). Most notably it is capable of growth via dissimilatory arsenate reduction which can make it of potential importance in that arsenate can inhibit the conversion of pyruvate into acetyl-CoA, blocking the Krebs cycle and therefore resulting in loss of ATP. Searles Lake is the optimum habitat because of the high arsenate. | |||
[[File:Searles_Lake.jpg|right|thumbnail|alt=A large clock tower and other buildings line a great river.|This is the [[Palace of Westminster]] in London]] | |||
==Genome Structure== | ==Genome Structure== | ||
Revision as of 21:24, 21 April 2013
Classification
Domain; Phylum; Class; Order; family [Others may be used. Use NCBI link to find]
Species
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NCBI: Taxonomy |
Genus species
Description and Significance
D. alkaliarsenatis is best described as an anaerobic, haloalkaliphilic bacteria. The SLSR-1 strain morphology is a motile vibrio that stain Gram-negative. The size of the bacteria is roughly .5 x 3.0μm, while TEM revealed the motility was due in part of a 10 μm polar flagellum. The preferred habitat of D. alkaliarsenatis is located in Searles Lake in CA, USA due in part to the high salt content and basic pH. It has demonstrated growth capability via sulfate-reduction over a broad range of salinities (50-300g/L). Most notably it is capable of growth via dissimilatory arsenate reduction which can make it of potential importance in that arsenate can inhibit the conversion of pyruvate into acetyl-CoA, blocking the Krebs cycle and therefore resulting in loss of ATP. Searles Lake is the optimum habitat because of the high arsenate.
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
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 _____, student of Prof. Jay Lennon at Michigan State University.
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