May 27, 2014

Original Fitness Experiment

1. Combined 1 µL of overnight culture clone (J329, J331, J332, J333, J334, J335, J336, J337, etc.), 250 µL LB+Amp, and 1µL of NaOH (0.5 N) OR 1 µL Ammeline (250 mM).

2. Grew up at 37 ºC with shaking overnight.

3. The next day, measured fluorescence and number of bacteria (fluorescence/# of bacteria ratio) for each treatment—NaOH (OFF) or Ammeline (ON).

4. Measured the fold induction by taking ratio of two ratios (ON/OFF).

Original Fitness Experiment

1. For the master mix, we combined 4 mL LB+Amp, 8 µL Kan, and 40 µL of cells (0.4)—ThyA- (Row A), J330 (B), J338 (C), J339 (D), or J340 (E). 250 µL were added to wells in microtiter plate.

2. The first two columns of cells were treated with NaOH only (7 µL dH2O and 3 µL 0.5 N NaOH). The next two, 1 X Thy (3.8 µL dH2O, 3 µL NaOH, and 3.1 µL 4 mg/mL Thy). Columns 5 and 6, 2 X Thy (0.8 µL dH2O, 3 µL NaOH, 6.2 µL Thy). Columns 7 and 8, 1 mM Amm (7 µL dH2O, 1 µL NaOH, 2 µL 250 mM Amm). Columns 9 and 10, 2 mM Amm (7 dH2O and 3 µL Amm).

3. We measured OD 590 over time to see the bacterial growth.