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InvisibleTheLoopIs
Registered: 05/29/13
Posts: 330
Do mushrooms at grocery store drop spores?
    #18861726 - 09/19/13 06:20 AM (10 years, 4 months ago)

Do mushrooms at grocery store drop spores? I want to try cultivating them!


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OfflineMidnight Cyclone
StrangerDanger
Registered: 05/29/13
Posts: 399
Loc: oo ess aye oo ess aye Flag
Last seen: 10 years, 12 days
Re: Do mushrooms at grocery store drop spores? [Re: TheLoopIs]
    #18861781 - 09/19/13 07:08 AM (10 years, 4 months ago)

If you're referring to agaricus bisporus (portobello), then yes they do carry spores in stores most of the time.

The problem with growing from a grocery store is finding a piece of sterile inoculant to drop onto agar, because those mushrooms have likely been shipped across the country.. if not across the world, they will likely be full of contaminants.

I was going to make an effort to grow these and I ran into this. Along with the difficult grow parameters (fruiting temps around 55-60F)


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OfflineRockhound
The Rockweiler
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Registered: 01/19/13
Posts: 664
Loc: hell creek anticline
Last seen: 8 years, 7 months
Re: Do mushrooms at grocery store drop spores? [Re: Midnight Cyclone]
    #18861812 - 09/19/13 07:22 AM (10 years, 4 months ago)

From the freshest specimen you can find, take at tissue culture from the inside of the stem to start a culture on agar, or for some spp., wet cardboard. Can work for any fresh mushroom from your grocer, or wild-gathered also.


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Invisiblemushmagic
supporting radical habits
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Registered: 03/21/12
Posts: 5,372
Loc: Candyland
Re: Do mushrooms at grocery store drop spores? [Re: Rockhound]
    #18861932 - 09/19/13 08:18 AM (10 years, 4 months ago)

I would only take tissue samples and place them on agar (not cardboard) so you can transfer away from the contaminants that you're likely to get from grocery store specimens. Even then though alot of the ones you would get from the grocery store might have been pushed as far as they can and senescence might set in very soon.


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InvisibleTheLoopIs
Registered: 05/29/13
Posts: 330
Re: Do mushrooms at grocery store drop spores? [Re: Rockhound]
    #18861937 - 09/19/13 08:19 AM (10 years, 4 months ago)

SWEET!!! Cant wait to try this out!
Would u guys say such fruiting temps from 55-60 are in all if not most grocery mushrooms? Sounds like they engineered them that way so people wouldn't try to grow them:)


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