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Team:OUC-China/Results
From 2013.igem.org
Results
Now we come to the most exciting part, our result. In this part we will show you our intracellular compartment in E.coli with laser confocal microscopy.
We detected three samples in total: The JM109 strain, the JM109 strain with MamC::GFP expression plasmid, and the JM109 strain with double MamC::GFP expression plasmid and our artificial gene cluster plasmid.
Firstly, the result of JM109. Just as we see, there is only some noise and no obvious GFP in view.
Figure. 1
The laser confocal microscopy result of JM109 with no plasmid. There is no GFP gathering in view.
Secondly, the result of the JM109 strain with MamC::GFP expression plasmid. As we see there are obvious GFP signs generally equally distributed in cells, only a few bacterium contain the GFP gathering at both ends of cells. And there no GFP signs in middle of the cell.
Figure. 2
The laser confocal microscopy result of JM109 with MamC::GFP expression plasmid. There are GFP gatherings at both ends of cells.
Thirdly, the result of the JM109 strain with both MamC::GFP expression plasmid and artificial gene cluster. The figure shows that there are clearly MamC::GFP fluorescence gatherings at both ends and in middle area of cell, which is different from the result of two samples above. 
Figure. 3
Additionally, we observed that the form of the strain with both plasmids has changed. It has become much longer than normal E.coli, like the figure below.
Figure. 4
The form of JM109 bacteria strain with both MamC::GFP expression plasmid under the 400X light microscope multiplication. The length of bacteria cell has become almost three times longer than normal E.coli.
About Dectection:
Our samples were all cultured in tubes with 20 mL LB medium in 37℃ in 170rpm incubator for 10h. Then we concentrated 1ml samples into 10μL, smeared it onto slides, sealed the slides, and observed slides using laser confocal microscopy (arouse wavelength is 488nm).
