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I want to do a science fair experiment about how bacteria interact with 5-carbon vs. 6-carbon sugars, and I want a bacteria that is easy to test and is readily available. Any ideas?

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What does "easy to test" mean? Do you want to check if it is there or if it does something? –  nico Sep 23 '13 at 7:03
    
Escherichia coli; Bacillus turingensis; Pseudomonas aeruginosa; Salmonella enterica; Lactobacillus acidophillus... Just look for any heterotrophic bacteria that is easy to obtain and that grows well in minimal medium and in aerobic conditions. While there aren't bacteria, you may want to try Saccharomyces cerevisae because it grows pretty well and it's very cheap. Same goes for Schizosaccaromyces pombe, wich is also a yeast. –  Miguel Ángel Naranjo Ortiz Sep 23 '13 at 20:41
    
Well, nico, I want a bacteria that is known to grow quickly, as I am doing this for science fair in school (I'm in 8th grade), and I also want one that is common and is cheap. I was thinking of using E. Coli, but I would rather use a bacteria that is not as harmful and risky, as I have never done an experiment with bacteria growth before. –  Sohum Sep 23 '13 at 22:16
    
(Should be comment, but rep=1.) Any E. coli you would get from a science supply store would be quite harmless. The E. coli that you hear about in the news is a specific dangerous strain. Saccharomyces cerevisae is just bakers' yeast. You may already have some in the frig. –  dmm Sep 26 '13 at 21:54

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E. coli grows well on many types of media; I personally used Tryptone with NaCl. Many labs use E. coli for teaching purposes because it is not pathogenic and low maintenance.

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