Pyrolobus fumarii: Difference between revisions

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<center><h2> [[Microbial Biorealm]]  *  [[Viral Biorealm]]  *  [[Microbial World News]]  *  [[Microbial Mythology]]</h2></center>
<center><h2> [[Microbial Biorealm]]  *  [[Viral Biorealm]]  *  [[Microbial World News]]  *  [[Microbial Mythology]]</h2></center>


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===Higher order taxa:===
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Archaea; Crenarchaeota; Thermoprotei; Desulfurococcales; Pyrodictiaceae
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=== Managing Editor ===
===Species:===
[http://biology.kenyon.edu/HHMI/Barich.pdf '''Daniel Barich '05''']
''Pyrolobus fumarii'' (Synonyms: ''Pyrolobus Blochl et al. 1999'')


=== Kenyon Student Editors, 2002-2007 ===
==Description and Significance==
Ryo Tashiro '09, Molly Schlemmer '08, Shrochis Karki '09, Drew Taber<sup>3</sup>, Allison Whipple '06, Zeva Levine<sup>1</sup>, Laura Damon-Moore<sup>1</sup>, Ariel Kahrl<sup>2</sup>, Hannah Sacks '08, Michael Stulberg '05, Casey M. Smith '06, and Shana Scogin '07
''Pyrolobus fumarii'' are made up of cells that are regulary to irregulary lobed cocci. Chemolithoautotrophic growth by anaerobic and microaerophilic H2 oxidation with NO<sub>3</sub><sup>-</sup>, S<sub>2</sub>O<sub>3</sub><sup>2-</sup>, and O<sub>2</sub> as electron accepters. By doing so well at temperatures of 95&#186;C to 113&#186;C, our knowledge about the upper limits of life is expanded.  


Advisor: [mailto:slonczewski@kenyon.edu Joan Slonczewski], [http://biology.kenyon.edu Biology Dept], [http://www.kenyon.edu Kenyon College]<br />
==Genome Structure==
Guest editors from <sup>1</sup>[http://www.beloit.edu// Beloit], <sup>2</sup>[http://www.oberlin.edu/ Oberlin], and <sup>3</sup>[http://www.cuc.edu Columbia Union College].<br />
<B>DNA Base composition</B>
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Determined by a direct analysis of its mononucleosides and melting point analysis,''Pyrolobus fumarii'' has a cytosine-guanine composition of 52.9mol% and 53.4mol% respectively. (Blochl ''et al''. 1997)
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<B>DNA-DNA homology</B>
 
The closest relatives of ''Pyrolobus fumarii'' are members of ''Pyrodictium' based off 16S rRNA partial sequencing. There is insignificant DNA homology between ''Pyrolobus fumarii'', ''Pyrodictium occultum'', and ''Pyrodictium abyssi'' as shown in a DNA/DNA hybridization. (Blochl ''et al''. 1997)
 
==Cell Structure==
 
 
 
[[Image:cell_structure.JPG|thumb|285px|center|The cell cycle of ''Caulobacter'' showing the two daughter cells, one with a stalk and one with a flagellum, that are different in function and structure. From Jacobs-Wagner]]
 
==Metabolism==

Revision as of 22:20, 9 April 2008

Pyrolobus fumarii

Microbial Biorealm * Viral Biorealm * Microbial World News * Microbial Mythology

Classification

Higher order taxa:

Archaea; Crenarchaeota; Thermoprotei; Desulfurococcales; Pyrodictiaceae

Species:

Pyrolobus fumarii (Synonyms: Pyrolobus Blochl et al. 1999)

Description and Significance

Pyrolobus fumarii are made up of cells that are regulary to irregulary lobed cocci. Chemolithoautotrophic growth by anaerobic and microaerophilic H2 oxidation with NO3-, S2O32-, and O2 as electron accepters. By doing so well at temperatures of 95ºC to 113ºC, our knowledge about the upper limits of life is expanded.

Genome Structure

DNA Base composition

Determined by a direct analysis of its mononucleosides and melting point analysis,Pyrolobus fumarii has a cytosine-guanine composition of 52.9mol% and 53.4mol% respectively. (Blochl et al. 1997)

DNA-DNA homology

The closest relatives of Pyrolobus fumarii are members of Pyrodictium' based off 16S rRNA partial sequencing. There is insignificant DNA homology between Pyrolobus fumarii, Pyrodictium occultum, and Pyrodictium abyssi as shown in a DNA/DNA hybridization. (Blochl et al. 1997)

Cell Structure

File:Cell structure.JPG
The cell cycle of Caulobacter showing the two daughter cells, one with a stalk and one with a flagellum, that are different in function and structure. From Jacobs-Wagner

Metabolism

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