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The Mycologist
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Registered: 05/06/16
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Does an agar plate covered in mycelium prevent contams?
#23893858 - 12/04/16 01:01 PM (7 years, 1 month ago) |
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Just a hypothetical question. If some sort of contam spores landed on top of mycelium on an agar dish will they be able to germinate?
-------------------- "That you are here—that life exists, and identity; That the powerful play goes on, and you will contribute a verse.” ― Walt Whitman, Leaves of Grass

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mushboy
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Registered: 04/24/05
Posts: 32,281
Loc: where?
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Re: Does an agar plate covered in mycelium prevent contams? [Re: The Mycologist]
#23893873 - 12/04/16 01:03 PM (7 years, 1 month ago) |
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yes
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The Mycologist
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Re: Does an agar plate covered in mycelium prevent contams? [Re: mushboy]
#23893916 - 12/04/16 01:15 PM (7 years, 1 month ago) |
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So a plate covered in mycelium helps to prevent contams?
-------------------- "That you are here—that life exists, and identity; That the powerful play goes on, and you will contribute a verse.” ― Walt Whitman, Leaves of Grass

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afflictis
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Registered: 03/09/12
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Re: Does an agar plate covered in mycelium prevent contams? [Re: The Mycologist]
#23893924 - 12/04/16 01:18 PM (7 years, 1 month ago) |
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Think he means it can still get contams
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krypto2000
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Re: Does an agar plate covered in mycelium prevent contams? [Re: afflictis] 1
#23894135 - 12/04/16 02:31 PM (7 years, 1 month ago) |
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Regardless if the spores can germinate or not why does it matter? In every scenario where you use agar you will be introducing the contaminant to an environment where it will proliferate whether the spores have already germinated or not. Why would you ask this question?
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The Mycologist
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Re: Does an agar plate covered in mycelium prevent contams? [Re: krypto2000]
#23894260 - 12/04/16 03:37 PM (7 years, 1 month ago) |
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I just wanted to know if a grown out petri dish was slightly contam resistant because the contam endospores/spores could not reach the agar. Maybe I don't understand the germination process. I was just curious and wanted to run it by the experts.
-------------------- "That you are here—that life exists, and identity; That the powerful play goes on, and you will contribute a verse.” ― Walt Whitman, Leaves of Grass

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Kenetic
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Re: Does an agar plate covered in mycelium prevent contams? [Re: The Mycologist]
#23894286 - 12/04/16 03:46 PM (7 years, 1 month ago) |
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It is contam resistant, however if your agar becomes covered with contam spores or bacteria (from opening dish in open air or something dumb like that) and you inoculate grain with it, the spores (which couldn't germinate directly on colonized agar) may be able to germinate on the sterile grain and your'e fucked.
-------------------- Todo Cambia    DMT said: Everyone know's me, they just don't know it yet
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Edmunter
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Re: Does an agar plate covered in mycelium prevent contams? [Re: Kenetic]
#23894306 - 12/04/16 03:52 PM (7 years, 1 month ago) |
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Its a race and if you have 100% colonised agar you are in the lead
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The Mycologist
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Re: Does an agar plate covered in mycelium prevent contams? [Re: Kenetic]
#23894309 - 12/04/16 03:53 PM (7 years, 1 month ago) |
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Ok thats what I thought.
Are there some contams that can colonize the mycelium itself?
-------------------- "That you are here—that life exists, and identity; That the powerful play goes on, and you will contribute a verse.” ― Walt Whitman, Leaves of Grass

Edited by The Mycologist (12/04/16 03:54 PM)
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natedawgnow
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Re: Does an agar plate covered in mycelium prevent contams? [Re: The Mycologist]
#23894334 - 12/04/16 04:05 PM (7 years, 1 month ago) |
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Mycelium can eat spores.
This is why fully colonized subs are contam resistant. I have had a plate that I took a wedge from and then left unsealed on my desk for days and no mold grew over the mycelium. The plate was fully colonized too.
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bodhisatta 
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Re: Does an agar plate covered in mycelium prevent contams? [Re: The Mycologist]
#23894349 - 12/04/16 04:10 PM (7 years, 1 month ago) |
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Quote:
The Mycologist said: Ok thats what I thought.
Are there some contams that can colonize the mycelium itself?
Yes https://www.shroomery.org/forums/showflat.php/Number/22982253#22982253
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Kenetic
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Re: Does an agar plate covered in mycelium prevent contams? [Re: bodhisatta]
#23894376 - 12/04/16 04:19 PM (7 years, 1 month ago) |
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I wonder if anyone has any microscope pics of myc eating stuff or can describe the process
-------------------- Todo Cambia    DMT said: Everyone know's me, they just don't know it yet
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jasen
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Re: Does an agar plate covered in mycelium prevent contams? [Re: Kenetic]
#23894486 - 12/04/16 04:54 PM (7 years, 1 month ago) |
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Quote:
kenetic said: I wonder if anyone has any microscope pics of myc eating stuff or can describe the process
Mycelium "eats" by exuding enzymes which break down the surrounding material and then reabsorbs the nutrients through the cell walls. Not very exciting
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Kenetic
Nam Sayin



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Re: Does an agar plate covered in mycelium prevent contams? [Re: jasen]
#23894504 - 12/04/16 05:00 PM (7 years, 1 month ago) |
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So you mean a slideshow doesn't need a badass theme song, just a boring upbeat one you'd listen to while washing dishes?
-------------------- Todo Cambia    DMT said: Everyone know's me, they just don't know it yet
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