Talk:Shewanella oneidensis MR-1: Background and Applications
Introduction
The genus Shewanella consists of gram-negative proteobacteria that are typically rod shaped, 2-3 μm in length and 0.4-0.7 μm in diameter (Fig 1). These facultative anaerobes are often found in marine sediments, and can swim with the aid of a single polar flagellum (Venkateswaran et al., 1999). Since the modern characterization Shewanella in 1988, DNA:DNA hybridization and 16S rRNA sequencing has been used to identify more than 40 distinct species. The features that characterize this genus include psychrotolerance, mild halophilicity, and the capacity to reduce an unparalleled array of inorganic and organic compounds for respiration (Gralnick et al., 2007). Their capacity to respire on various metals as well as their production of endogenous hydrocarobons has ignited tremendous interest in the characterization and potential applications of these microorganisms.
Brief History
Shewanella was originally identified in 1931 as one of multiple species of bacteria growing on putrid butter (Hammer, 1931). It was first classified as part of the genus Achromobacter and was reclassified multiple times on the basis of its polar flagella, its status as a non-fermentive marine bacteria, and the guanine/ cystine content (% GC) of its DNA (Gralnick et al., 2007). In 1985, 5S rRNA sequencing was used support an entirely new name for the genus, Shewanella. The name was given as a tribute to Dr. James M. Shewan for his work in fisheries microbiology (MacDonell et al., 1985).
Model Species of the Genus Shewanella: Shewanella oneidensis MR-1
Section 2
Include some current research in each topic, with at least one figure showing data.
Section 3
Include some current research in each topic, with at least one figure showing data.
Conclusion
Overall paper length should be 3,000 words, with at least 3 figures.
References
Edited by student of Joan Slonczewski for BIOL 238 Microbiology, 2009, Kenyon College.
