[Arabidopsis] 4-MUG problem

Gaston Zolla via arab-gen%40net.bio.net (by gzolla from yahoo.com)
Tue Apr 17 09:04:03 EST 2007

Hi all
As I did not get fluorescence in the positive control when I measured GUS activity and I dissolve 4-MUG in methanol. I wonder (1) for how long is it possible to keep a solution of 4-MUG at -20C? (2) If a solution of 4-MUG get contaminated could change of color how is reported for X-Glux?
Thanks in advance
Gaston Zolla

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