Staphylococcus borealis: Difference between revisions
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==Cell Structure, Metabolism and Life Cycle== | ==Cell Structure, Metabolism and Life Cycle== | ||
Staphylococcus borealis is a gram positive bacterium and has a lack of the virulence factor coagulase. The shape of its cells are coccoid and can also form clusters. It has a diameter of 0.65 to 1.23um. | Staphylococcus borealis is a gram positive bacterium and has a lack of the virulence factor coagulase. The shape of its cells are coccoid and can also form clusters. It has a diameter of 0.65 to 1.23um. The cells have a yellow tint and is similar to S. haemolyticus but the differences can be seen when using supplemented P-agars after 48 hours at 37 degrees Celsius. Since the discovery of S. borealis sp. nov. is so new researchers are still trying to understand how it gains energy. | ||
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 06:15, 22 November 2022
Classification
Domain: Bacteria
Phylum: Bacillota
Class: Bacilli
Order: Bacillales
Family: Staphyloccocaceae
[Others may be used. Use NCBI link to find]
Species
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NCBI: [1] |
Staphylococcus S. borealis
Description and Significance
Staphylococcus borealis is bacterial species that is gram positive, coccoid in shape, and can also form clusters. It is a member of the genus Staphylococcus, and it closely related to Staphylococcus haemolyticus which is an opportunistic pathogen that causes disease in patients with foreign body implants or someone with an impaired immunity. While analyzing S. haemolyticus, researchers found five bacterial strains that had different phenotypic and genotypic traits. All five strains are from Tromso, in North Norway so researchers believe it may be adapted to a northern climate. Four strains were isolated from skin swabs and one strain was isolated from blood culture. This indicates the species ability to colonize human skin and potentially penetrate into the blood stream. They believed these strains to be from S. haemolyticus until they did more research due to the differences in other cultures. They proposed that the five strains were a new staphylococcal species called Staphylococcus borealis sp. nov.
Genome Structure
Staphylococcus borealis has 8 strains that have been found. The genome size range was 2,521,961 - 2,797,948 bp, with 2,288 - 2,529 coding sequences. The G+C content of the novel species ranged from 33.54% to 33.80% which is in the range expected for species of the genus Staphylococcus. Since this species is new to being discovered when they cultured it on horse blood agar at 37 degrees Celsius, the S. borealis strains formed smooth, circular, raised or slightly convex colonies reaching 3-5mm in diameter. The 16S rRNA sequence of Staphylococcus borealis 51-48T is under the accession number MT586030.
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
Staphylococcus borealis is a gram positive bacterium and has a lack of the virulence factor coagulase. The shape of its cells are coccoid and can also form clusters. It has a diameter of 0.65 to 1.23um. The cells have a yellow tint and is similar to S. haemolyticus but the differences can be seen when using supplemented P-agars after 48 hours at 37 degrees Celsius. Since the discovery of S. borealis sp. nov. is so new researchers are still trying to understand how it gains energy.
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 Lindsey Cairey, student of Prof. Bradley Tolar at UNC Wilmington.
