RNA extraction

Maria Labandeira-Rey via methods%40net.bio.net (by pumituki from hotmail.com)
Fri Jun 13 09:58:45 EST 2008

I have been told that I have to add sodium azide to my bacterial cultures right before the RNA extraction to prevent RNA degradation.  I would like to know if anyone knows the basis for this degradation inhibition.  In my previous lab we just pelleted and re-suspended in trizol.  Thanks in advance.
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