Electroporation nutrient requirements of E. coli

"Marianne Leverone ", BIO leverone at CHUMA.CAS.USF.EDU
Thu Jan 18 09:44:35 EST 1996

Greg:  When we screen for cells using M9 + required nutients, we use SOC 
directly after electroporation (for only an hour) so that the cells can 
recover.  We then screen by performing viable counts on the M9.  This 
works fine.  Marianne Leverone, USF, Tampa, FL

On Wed, 17 Jan 1996, Greg Galloway wrote:

> Hello,
> I want to use electroporation to transform a line of mutant E. coli cells in 
> order to screen for my genes of interest.  The screen requires the cells to be 
> grown on a minimal media (M9 with required amino acids and 0.4% glucose in 
> this case), which means that I can not use the standard SOC or 2YT media 
> immediately after electroporation.
> My question is, what are the "nutritional requirements" for optimal recovery 
> of E. coli following electroporation?  Is there something I can add 
> (e.g. a certain ion?  more glucose?  glycerol?)  to the M9 minimal media to 
> increase the recovery rate and improve my transformation efficiency?
> Thanks in advance!
>   -Greg Galloway-
> ++++++++++++++++++++
> Greg Galloway
> galloway at dogwood.botany.uga.edu
>   Department of Botany - Malmberg Lab
>   University of Georgia at Athens

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