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Team:TU Darmstadt/protocols/Bacterial cell culture
From 2013.igem.org
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Revision as of 15:25, 4 October 2013
Bacterial cell culture
Materials
Equipment
Bunsen burner
Pipettes with pleus ball
Micropipettes with sterile tips
Flow bench
Chemicals & consumables
Culture tubes with metal caps
Growth medium (LB, DYT or SOC)
Parafilm
Autoclaved glass pipette tubes
Procedure
Starting culture: under sterile conditions add about 5mL (two fingers high) of medium to a culture tube and insert the picked colony.
Step by step:
1. Cultivate the stock on agar plate e.g. until colonies grow (incubation usually at 37°C)
2. Flame a glass pipette, open the bottle of medium and flame the mouth, measure out the amount you need to fill your tubes, flame the cap and recap the bottle as quickly as possible
3. Remove the tube cap, flame the top of the culture tube, pipette in 5 ml, flame the top of the tube, and cap it
Pick a single colony (to asure the cells are from the same single clonal population) and transfer it to the medium
by tapping a small (0.1 μl) pipette tip (held on a pipette) on the surface of the plate. Uncap a tube, flame the top, tip the tube so as to transfer cells from the pipette tip to the surface of the media without touching the inside of the tube with the non-sterile portion of the pipetter, flame, cap.
4. Pipette the desired amount of antibiotic into each tube along the wall. Do not put the non-sterile part of the pipette inside the tube and use a new tip for each tube.
5. Vortex each tube for 1-2 seconds to mix well.
6. Take the tubes to incubat (usually at 37°C) in an incubator or warm room.
7. Wait overnight or until your cells have reached the desired concentration.
http://openwetware.org/wiki/Bacterial_cell_culture
