Team:SDU-Denmark/project-p

From 2010.igem.org

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'''2. Growth of bacterial culture on semi-solid agar plates (Experiment 1):'''<br>
'''2. Growth of bacterial culture on semi-solid agar plates (Experiment 1):'''<br>
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The experiment described above was repeated in a more controlled environment. This means that there were no changes as to how the plates or bacterial cultures were prepared, so we refer again to [https://2010.igem.org/Team:SDU-Denmark/protocols#Photosensor_characterisation] in regards to how this was done. The difference lies in the setup of the light-controlled environment. What we did this time was to have a single light source coming from above in an otherwise completely dark environment, we prepared a cut-out so that the light would only hit one half of our plates and the other half would remain in the dark. Since the problem with the last experiment was that the light source was just normal white light (which contains alot of different wavelengths), this time around we used an optical filter so that only light with a wavelength of around 470nm could pass through, which resulted in a blue light shining down on the plates. The light-source itself was a run-of-the-mill flashlight, with a blue light filter installed in front of the lens. To eliminate the effect of temperature gradients inside the incubator, the three samples were placed in a triangle formation in the center of the incubator. <br>
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Another deviation from the protocol PS1.1 is that the culture was inoculated at the center of the plate, instead one colony each was inoculated in the center of the light exposed and dark half.
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Revision as of 10:58, 23 October 2010





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