Yjgent wrote:
>> >In this lab we're working with E.Coli (ATCC 25922 and wild type) and we
> >routinely use MacConkey Agar inclusion plating as a counting method for
> >these microorganisms.
>> I was taught a long time ago NOT to measure a colony count from a Mac plate.
> Only a non selective agar like TSA or a Blood Agar plate can be used to count
> colonies.
> John Gentile M(ASCP) President - Rhode Island Apple Group
>yjgent at aol.com> Microbiologists do it with culture.
Why was this? are the recovery rates too low?
Lynn
