Hi;
I have white fuzzies on the tops of serum samples, but always attributed
that to ice formation, much like one sees on food stored in one's freezer.
I rather doubt that they are fungi. A simple look under the microscope
should solve the question once and for all.
Michael
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Michael P. Kolotila, Ph.D. * e-mail: mkolotila at necc.mass.edu
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Biotechnology Program Coordinator *
Department of Natural Science and *
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On Thu, 29 May 1997, John Cherwonogrodzky wrote:
> Dear Colleagues:
> I have been doing a little work with mice infected with fungi. I have
> noticed that their serum samples, stored at minus 70 C have fungal growth at
> the top. I haven't had time to pursue this, but this observation runs counter
> to logic. Things don't grow on frozen media (though I once read that 15% of
> the water is still in liquid phase) I think It more likely that there was
> growth in the serum samples when I worked with these at room temperature, and
> then upon freezing the fungi were somehow compressed to the top by the
> formation of ice crystals. Any comment? Thanks...John
>>
