More Discoveries!

Could bacteria be the first living organisms on earth?

This seems highly probable, as they were anaerobic, and seemed very simple at the first look. The earliest bacteria could have consumed natural amino acids, producing methane, alcohol, and/or carbon dioxide as waste products. These early types of bacteria used fermentation, which is an anaerobic method to produce energy.

Studying the origins of bacteria can help me understand how bacteria have come to survive for such a long time, and how these “simple” organisms are actually very complex.

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I have also been keeping a watch on Aditya’s blog, which has proved to be very interesting. He mentions three books on his blog: (1) Glowing Genes: A Revolution in Biotechnology by Marc Zimmer, Amherst, New York: Prometheus Books (2005). (2) Aglow in the Dark: The Revolutionary Science of Biofluorescence by Vincent Pieribone and David F. Gruber, Cambridge, MA: The Belknap Press of Harvard University Press (2005). (3) Bioluminiscence: Chemical Principles and Methods by Osamu Shimomura, Hackensack, New Jersey: World Scientific Publication Company Inc. (2006).

I will definitely look at these books if I can; maybe I’ll see if Aditya is done with them and borrow them from him. He also has a list of links to websites and articles that are very interesting, and I will list them here for convenience:

(1) The Bioluminescence Web Page

http://www.lifesci.ucsb.edu/~biolum/

(2) Bioluminescence info and research from the Latz Laboratory of the Scripps Institute of Oceanography

http://siobiolum.ucsd.edu/biolum_intro.html

(3) Bioluminescence in the Sea - Jan 2010 article in the Annual Review of Marine Science

http://www.annualreviews.org/eprint/pbWcm4DyqvQGJ7F2qGkc/full/10.1146/annurev-marine-120308-081028

(4) Bioluminescence article by Professor John Lee, University of Georgia

http://www.photobiology.info/LeeBasicBiolum.html

(5) Bioluminescence article by Steven Haddock, Research Scientist, Monterrey Bay Aquarium Research Institute

http://oceanexplorer.noaa.gov/explorations/09bioluminescence/background/bioluminescence/bioluminescence.html

(6) Detailed scientific article on applications of bioluminescence http://www.promega.com/resources/product-guides-and-selectors/protocols-and-applications-guide/bioluminescent-reporters/

(7) TED talk on Glowing Life in an Underwater World by Edith Widder (CEO and Senior Scientist, Ocean Research and Conservation Association)http://www.ted.com/talks/edith_widder_glowing_life_in_an_underwater_world.html

(8) Scientific American article on 10 shining examples of bioluminescent creatures

http://www.scientificamerican.com/article.cfm?id=bioluminescent-avatar

Aditya also explores the history of bioluminescence. Though this is just a small list of early experiences with bioluminescence, it helped me see the path of discovery in this field: from mere sightings to explanations for what causes the phenomenon.

Definitions of several terms that may be useful later on:

Chemluminescence: the emission of light due to a chemical reaction

Flourescence: immediate release of light

Phosphorescence: delayed release of light

Aditya also mentions the different functions of bioluminescence, which may be useful later on, but as of now, I am not studying this area of bacteria.

Bioluminescence, however, is only one of many topics involved in the area of bacteria. It is a very interesting study, and I look forward to seeing some more information on Aditya’s blog!