Commercial applications of Rhodopseudomonas palustris: Difference between revisions

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==Introduction==
==Introduction==
[[Image:rhodops.jpg|thumb|300px|right|Figure 1. Rhodopseudomonas palustris photographed by Caroline Harwood [http://genome.jgi.doe.gov/rhopa/rhopa.home.html].]]
[[Image:rhodops.jpg|thumb|300px|right|Figure 1. Rhodopseudomonas palustris photographed by Caroline Harwood [http://genome.jgi.doe.gov/rhopa/rhopa.home.html].]]
<br>By Noah Montgomery<br>
<br>Rhodopseudomonas palustris has the unique ability to switch between forms of metabolism. Could this ability be harnessed and used to potentially produce biofuel or help degrade waste?<br>


Rhodopseudomonas palustris is an Alphaproteobacteria under the genus Rhodopseudomonas. R. palustris is a non-sulfur purple bacterium that is gram-negative with a rod shape. Cells are motile and the organism reproduces by means of budding. R. palustris is found in both aerobic and anaerobic environments including a wide variety of marine and soil ecosystems; coastal marine sediment and waste water treatment facilities for example <ref>[http://www.nature.com/nbt/journal/v22/n1/full/nbt923.html Larimer F. et al. “Complete genome sequence of the metabolically versatile photosynthetic bacterium Rhodopseudomonas palustris”. Nature Biotechnology. 2004. Volume 22, p.55-61]</ref> . Typically non-sulfur purple bacteria are phototrophic, however R. palustris has the capability to switch between different forms of metabolism depending on environmental conditions: photoautotrophy, photoheterotrophy, chemoautotrophy, and chemoheterotrophy.


Sample citations: <ref>[http://www.plosbiology.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pbio.1000005&representation=PDF Hodgkin, J. and Partridge, F.A. "<i>Caenorhabditis elegans</i> meets microsporidia: the nematode killers from Paris." 2008. PLoS Biology 6:2634-2637.]</ref>
Sample citations: <ref>[http://www.plosbiology.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pbio.1000005&representation=PDF Hodgkin, J. and Partridge, F.A. "<i>Caenorhabditis elegans</i> meets microsporidia: the nematode killers from Paris." 2008. PLoS Biology 6:2634-2637.]</ref>

Revision as of 20:49, 28 April 2016

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Introduction

Figure 1. Rhodopseudomonas palustris photographed by Caroline Harwood [1].

Rhodopseudomonas palustris is an Alphaproteobacteria under the genus Rhodopseudomonas. R. palustris is a non-sulfur purple bacterium that is gram-negative with a rod shape. Cells are motile and the organism reproduces by means of budding. R. palustris is found in both aerobic and anaerobic environments including a wide variety of marine and soil ecosystems; coastal marine sediment and waste water treatment facilities for example [1] . Typically non-sulfur purple bacteria are phototrophic, however R. palustris has the capability to switch between different forms of metabolism depending on environmental conditions: photoautotrophy, photoheterotrophy, chemoautotrophy, and chemoheterotrophy.

Sample citations: [2] [3]

A citation code consists of a hyperlinked reference within "ref" begin and end codes.

Metabolism

Figure 2.Metabolic pathways of Rhodopseudomonas palustris. Image credit Larimer, F. et al. [2].

Include some current research, with at least one figure showing data.

Every point of information REQUIRES CITATION using the citation tool shown above.

Biodegredation

Figure 3. Formation and reductive dechlorination of 3-chlorobenzoyl-CoA into the product benezoyl-CoA. A process of R. palustris proposed by Egland, P. et al. [3].

Include some current research, with at least one figure showing data.

Electricity Generation

Include some current research, with at least one figure showing data.

Hydrogen Production

Figure 4. Effects of various nitrogen sources on H2 production, cell growth and acetate consumption. Symbols: No added nitrogen source (open circle), 5 mM glutamate (open square), 5mM NH4Cl (open triangle), and 3 g yeast extract (dark circle). Oh, Y. et al. [4].

Conclusion

References

  1. ↑ Larimer F. et al. “Complete genome sequence of the metabolically versatile photosynthetic bacterium Rhodopseudomonas palustris”. Nature Biotechnology. 2004. Volume 22, p.55-61
  2. ↑ Hodgkin, J. and Partridge, F.A. "Caenorhabditis elegans meets microsporidia: the nematode killers from Paris." 2008. PLoS Biology 6:2634-2637.
  3. ↑ Bartlett et al.: Oncolytic viruses as therapeutic cancer vaccines. Molecular Cancer 2013 12:103.



Authored for BIOL 238 Microbiology, taught by Joan Slonczewski, 2016, Kenyon College.

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