Team:Hawaii/Notebook/2008-06- 3

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[[Image:DSC00696.JPG|left|thumb|250px|DH5-α dilutions plated on LB]]
[[Image:DSC00696.JPG|left|thumb|250px|DH5-α dilutions plated on LB]]

Latest revision as of 02:34, 5 June 2008

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Things we did today

Grace & Norman

  • Thaw test for PCC6803 and DH5-α
  • Made LB and LB + amp media
  • amp conc. = 100 μg/mL
  • Made 1000X amp stock solution, stored in 4C freezer
  • 1000X = 100 mg/mL
  • Tested competency of DH5-α (see experiment)
  • Counted colonies to determine number of cells grown to OD600 = 0.3
  • Cells were cryoperserved, OD600 = 0.0748
  • 10 μl were plated on each plate
Cell Count
Dilution Colony Forming Units on Plate Number of Cells per mL
1 Too many to count n/a
1/10 Too many to count n/a
1/100 Too many to countn/a
1/1000 19019,000,000
1/10,000 404,000,000
1/100,000 2323,000,000
1/1,000,000 6600,000
DH5-α dilutions plated on LB


Discussion

We have lots of cells (yay!). Cryofreezing will result in the loss cell population, but we will very likely still have viable cells after thawing.

Quote of the Day

"Wow, competency takes a long time." - NW


[http://manoa.hawaii.edu/ Sponsor_UHM.gif][http://manoa.hawaii.edu/ovcrge/ Sponsor_OVCRGE.gif][http://www.ctahr.hawaii.edu Sponsor_CTAHR.gif]

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