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SerpentofWisdom
Stranger
Registered: 10/08/07
Posts: 2
Last seen: 15 years, 9 months
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Myc. take over contam?
#7575266 - 10/30/07 01:44 AM (16 years, 3 months ago) |
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So what i normally do after every grow is make a new spore syringe from the fresh mushrooms.
So after about 3 grows a had a couple of 1/2 empty syringes left which were unrefrigerated. So i though what the hell might as well make use of them. So i quickly made up a couple of jars and PCed them
I quickly (stupidly) inoculated them with fairly average sterile procedure, I'm getting slacker :P
SO ANYWAY
2 jars got black mold at the injection sites, fist contams ever. The other 3 looked fine, forgot about them for 2 weeks, had a look and only partially colonized (normally fully colonized after week) so after closer inspection of the uncolonized BRF i noticed it was no longer 'grayish' but more yellowish i quickly isolated them and left them for a wile. So after another week the jars are fully colonized no sign of the yellowy BRF. So the question I'm asking is that will they be fine to fruit? I don't want to spread nasty spores around, can the myc take other other contams?
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CaptainLinger
A Fungus Amongus


Registered: 05/25/07
Posts: 1,756
Last seen: 3 years, 7 months
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You don't ever want to open an infected jar, particularly black and orange-ish molds; it's a matter of your health more than the mushroom, which will also fail.
Pictures. Saying it looks "more yellowish" won't tell us whether it's noxious mold, or just as I'd guess, metabolites.
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 3 days
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I've also seen many times a jar with molds, get overtaken by nice white mycelium. However, it's usually MOLD mycelium, not mushroom mycelium. RR
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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Akamatsu
Seeker

Registered: 01/29/06 
Posts: 285
Loc: Australia
Last seen: 2 years, 1 month
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I've had lipstick mold contamination that has 'grown over', and then successfully fruited:



I'd say this was an exception rather then the rule though.
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 3 days
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Re: Myc. take over contam? [Re: Akamatsu]
#7578001 - 10/30/07 06:48 PM (16 years, 3 months ago) |
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I don't know what that red stuff is in the top picture, but it sure isn't Geotrichum(lipstick mold). In fact, it doesn't look like mold at all. RR
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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Akamatsu
Seeker

Registered: 01/29/06 
Posts: 285
Loc: Australia
Last seen: 2 years, 1 month
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Re: Myc. take over contam? [Re: RogerRabbit]
#7582522 - 10/31/07 09:54 PM (16 years, 3 months ago) |
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Possibly not lipstick, but it's definitely a contamination. It showed up a couple days after inoculation, and covered most of the jar quite quickly. Myc growth didn't appear until about 3 weeks later, but seemed to overgrow what ever it was quite quickly.
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