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Registered: 01/03/02
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Agar Contamination
    #530298 - 01/24/02 05:48 PM (14 years, 9 months ago)

Uh oh. I made my PDA agar, and put it in my incubation chamber which is at 28 degrees celcius. none of my autoclaved agar dishes grew anything after over a week, so i went ahead with inoculation.
inoculation was done infront of my hepafilkter in my glovebox. This was an old spore syringe i got from a friend. it was about 6 months old.
it has black dots covering the surface of it, which i know are not the black clumps of spores.

also, after this, the n ext day, my spore order came in, and i inoculated my agar with these too.
a couple of these have fuzzy looking stuff on the edges.
is this fuzz normal? or is it contamination. its white fuzz....
or am i just not experienced enoujgh with agar to know what the colonized agar looks like?

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Re: Agar Contamination [Re: cookiewhore]
    #532477 - 01/26/02 11:54 PM (14 years, 8 months ago)

Black dots might be black pin mold. The plates with spores from a spore print are probably good. Initial growth from spores on agar is greyish and whispy. It thickens up and gets whiter as it grows. A transfer of a good looking area to a fresh plate will usually bring out the ropey growth.

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Mushrooms, Mycology and Psychedelics >> Contamination Forum

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