Question on unknown organism
Larry D. Farrell
farrlarr at isu.edu
Fri Aug 1 11:44:21 EST 2003
SARAH ANDERSON wrote:
> I have to id an unkown organism. I have verified that it is a Gram
> Positive Bacillus.
> I did a spore stain and it was negative. However, when I looked at the
> organism under a scope after the spore stain, it looked like
> My questions are: could there be a diplobacillus that looks like
> diplococcus? Any explanation for this?
> Or do I probably have contamination?
> My unknowns could possibly be Mycobacterium smegmatis or
> Corynebacterium species based on the spore results- I will do an acid
> fast test next week to determine this...but in the meantime, I'm
> puzzled by the spore test...
> Any help would be appreciated. Thanks!
Talk to your lecture or lab instructor or go to the library.
Larry D. Farrell, Ph.D.
Professor of Microbiology
Idaho State University
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